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How do you amend soil after onions?

Amending soil after growing onions is an important step to ensure that the next crop planted in that soil will grow well. Onions are heavy feeders, and their growth depletes the soil of many nutrients that are beneficial to plants. Therefore, it is crucial to replenish the soil with nutrients and restore its health to support the next crop.

The first step in amending soil after onions is to remove any remaining onion plants, roots, and debris from the soil. This can be done by hand-pulling or tilling, depending on the size of the plot. It is essential to clean the soil thoroughly from any debris to prevent diseases and pests from spreading into the next crop.

After cleaning, the soil needs to be loosened, and any clumps and rocks need to be removed to make it easier for plants to grow. The best way to do this is by using a garden fork or tiller to break up the soil.

Next, it is time to add organic matter to the soil. Organic matter is beneficial because it provides nutrients to the plants while improving the soil’s structure and water-holding capacity. The best organic matter to add to soil is compost, well-rotted animal manure, or leaf mold. It is recommended to add about 2 to 3 inches of organic matter to the soil and then mix it well with the loosened soil.

Depending on the soil pH level, it might be necessary to add lime or sulfur to adjust the pH level for optimal plant growth. Onions prefer a pH level of 6.2 to 6.8, so it is essential to test the soil before amending it. In case the soil pH level needs adjustment, lime will raise the pH level, while sulfur will lower it.

After the soil has been amended with organic matter and pH adjusted, it is time to fertilize it. Onions require a moderate amount of nitrogen and phosphorus and a small amount of potassium. If using a chemical fertilizer, a balanced fertilizer with equal parts nitrogen, phosphorus, and potassium can be used.

Alternatively, organic fertilizers like bone meal, blood meal or fish emulsion can be used.

Finally, the amended soil should be watered thoroughly and allowed to settle for a few days to a week before planting the next crop. Adding mulch to the top layer of the soil can also help retain moisture, discourage weed growth, and reduce soil erosion.

By amending the soil after onions, the soil will be replenished with nutrients and organic matter essential for plant growth, and the next crop planted will be healthy and productive.

What can be planted after onions?

The answer to the question of what can be planted after onions depends on various factors such as soil type, climate, the time of the year, and other factors that could affect the growth of the following crops. Generally, after harvesting onions, there are several plants that gardeners can opt to plant in the same soil.

Some of these plants can help to replenish nutrients in the soil, while others can enhance the soil structure hence, offering suitable growing conditions for the next crop.

One of the recommended crops to plant after onions is legumes. Plants such as peas, beans, and lentils are known for their ability to fix nitrogen in the soil, which is a crucial nutrient for plant growth. Therefore, planting legumes after onions can help to improve the nitrogen content in the soil, thus boosting the growth of the next crop.

Additionally, legumes can help to reduce soil erosion and improve soil structure, which further enhances healthy plant growth.

Another crop that can be planted after onions is cabbage. Cabbage is a brassica crop that is known for its ability to repel soil-borne pests such as cabbage maggots and onion maggots, which could attack the next crop. Cabbage also requires similar soil conditions as onions, and since it does not affect the soil’s nutrient balance, it makes an ideal crop to follow onions.

Other crops that can be planted after harvesting onions include tomatoes, carrots, and lettuce, among others. While these crops do not necessarily have a direct benefit to the soil, planting them after onions help avoid the buildup of fungal diseases and pests that can affect the growth of the next crop.

When considering what to plant after onions, it is essential to consider the nutrient needs of the next crop and ensure that it does not have similar pest and disease issues to onions. Crop rotation also plays a critical role in minimizing soil depletion and retaining soil structure, which is essential for healthy plant growth.

Therefore, planning ahead and ensuring that the following crop meets the required growing conditions can help to maximize the yield and growth of the plants.

Can you plant onions in the same place every year?

Planting onions in the same place every year is not recommended, as it can lead to a buildup of diseases and pests in the soil. When onions are planted in the same location year after year, the soil becomes depleted of nutrients, and the onion plants become more susceptible to diseases and pests.

Over time, the soil can become infected with onion diseases such as pink root, fusarium basal rot, and white rot. In addition, pests such as onion maggots and thrips can also build up in the soil, making it difficult to grow healthy onions.

The best practice is to rotate onion crops every year, planting them in a new location that has not grown onions or other alliums (garlic, leeks, shallots) for at least two years. This allows for the soil to rejuvenate, replenishing nutrients and reducing the risk of disease.

If you do not have a large garden or enough space to rotate crops, you can also use raised beds that can be filled with fresh soil each year. Alternatively, you can try intercropping, where you plant onions alongside crops that are not related to alliums, such as beans, peas, or tomatoes.

While onions are a hardy crop that can be grown in a variety of conditions, it is not recommended to plant them in the same location every year. To maintain healthy onion crops and prevent the buildup of diseases and pests, it is best to rotate onion crops every year or use alternative methods such as raised beds or intercropping.

Do onions need crop rotation?

Yes, onions do need crop rotation.

Crop rotation is an important agricultural practice that involves growing different crops in a particular field each growing season. This technique is crucial in maintaining soil health and reducing the buildup of disease and pests in a particular crop. It also helps ensure that the soil does not become depleted of specific nutrients that may be required by specific plants.

Onions are no exception to the need for crop rotation. One of the primary reasons behind this is that onions are prone to several diseases that can persist in the soil for several years. For instance, onion rot, onion smut, and purple blotch are diseases caused by fungal pathogens that can survive in soil debris for years.

Growing onions in the same field year after year can enhance the spread of these pathogens, resulting in a reduction in yield and quality of the crop.

Additionally, onions require specific soil nutrients for growth, including nitrogen, phosphorus, and potassium. Growing onions repeatedly in the same field can exhaust the soil of these nutrients, making it challenging to maintain optimal yields. Crop rotation helps to address this by allowing other crops to utilize the soil nutrients that onions do not require while improving soil fertility.

To successfully rotate onion crops, farmers should plant onions after crops that do not belong to the allium family, such as legumes or cereals. Legumes are nitrogen-fixing crops that enrich the soil with nitrogen needed by onions during their growth, while cereals improve soil structure and fertility.

Alternating these crops with onions can help break the disease cycle in the soil, eliminate weeds, and reduce pests, leading to better onion yields and quality.

Crop rotation is a vital practice for onion farming, and every farmer should adopt it to achieve optimal yields and maintain soil health. By rotating onion crops, farmers can maintain soil fertility, break cycles of disease, minimize pest buildup, and ultimately, produce healthy and high-quality onions.

What can I plant over garlic?

When it comes to planting over garlic, there are a variety of options available for you to choose from. The types of plants you select will depend on a variety of factors such as your climate, soil quality, available sunlight, and personal preferences.

One popular option for planting over garlic is to use companion plants. Companion plants are those that have a mutually beneficial relationship with garlic, helping to keep pests away and adding nutrients to the soil. Some good companion plants for garlic include onions, chives, and shallots. These plants can be planted over the garlic and will grow happily alongside it, creating a healthy and diverse garden environment.

Another option for planting over garlic is to use cover crops. Cover crops are plants that are planted to protect and improve the soil, rather than for their harvestable yield. Some examples of cover crops that work well with garlic include clovers, vetch, and rye. These crops can be planted over the garlic and will help to suppress weeds while adding nitrogen and other essential nutrients to the soil.

If you are looking to maximize your garden space, you may consider planting a vegetable or fruit crop over your garlic. Some good options include lettuce, spinach, tomatoes, and peppers. These crops can be planted in the spaces between your garlic bulbs, allowing you to utilize your garden space to its fullest potential.

The right choice for you will depend on your specific gardening goals and needs. Whether you choose to use companion plants, cover crops, or other vegetables, planting over garlic can be a great way to maximize the productivity and health of your garden.

What is the fastest way to amend soil?

The fastest way to amend soil will depend on several factors, such as the current condition of the soil, the type of plants to be grown, and the desired outcome. There are several methods that can be used to amend soil, and each of these methods has its benefits and limitations.

One of the most efficient ways to amend soil is by adding organic matter, such as compost or well-rotted manure. This method enhances soil fertility by providing nutrients, improving soil structure, and increasing water-holding capacity. Adding organic matter also helps to stimulate microbial activity, which is beneficial to plants by improving nutrient availability and promoting a healthy soil ecosystem.

The compost or manure is usually added to the top layer of soil and then worked into the soil by digging or tilling.

Another way to amend soil quickly is by using chemical fertilizers. This method can be highly effective if used correctly, but there are several downsides. Chemical fertilizers can be expensive, and they may have adverse effects on soil organisms and the environment. Additionally, they can also cause soil compaction, which can impede the growth of plant roots and reduce soil porosity.

As such, this method is best used in the short term or as part of a larger soil amendment plan.

The third way to amend soil is by utilizing cover crops. Cover crops are plants that are grown specifically to improve soil health by fixing nitrogen, suppressing weeds, and protecting soil from erosion. They can be sown either in the fall after the harvest or in the spring before planting. Cover crops are low-cost amendments that can be used to improve soil health and structure over the long term.

Finally, soil remediation technologies, such as land application of organic waste or bioremediation, can be used to remediate contaminated soil quickly. These methods, though limited to specific scenarios, are effective solutions for removing toxic chemicals and contaminants from soil.

The fastest way to amend soil will ultimately depend on the specific situation – the condition of the soil, the type of plants to be grown, and the desired outcome. Nevertheless, adding organic matter or utilizing cover crops are two of the most effective ways to improve soil fertility, improve soil structure, and promote plant growth, while chemical fertilizers are a more immediate solution that can be employed if used correctly.

Soil remediation technologies serve for particular scenarios, such as pollution or contamination. A combination of these methods should be used to achieve maximum benefits when amending soil.

How long does it take to amend soil?

Amending soil can take anywhere from a few months up to a year or more depending on a variety of factors. The primary factor that affects how long it takes to amend soil is the type of amendment being used, as different amendments will have different effects on soil health and fertility. For example, adding organic matter like compost or manure can take several months to break down and integrate into the soil, whereas adding mineral amendments like lime or rock phosphate may have more immediate effects.

The current state of the soil also greatly impacts how long it takes to amend it. Soil that is heavily compacted or lacking in nutrients may take longer to amend, as it will need more time and resources to return to a healthy, fertile state. In such cases, it is important to work the soil over several seasons, gradually introducing amendments and allowing time for them to take effect.

Other factors that can influence how long it takes to amend soil include the climate and growing conditions in a given area, the growing season, and the type of crops or plants being grown. In some cases, it may be necessary to modify planting or fertilization practices to achieve the desired results.

The length of time it takes to amend soil will depend on a complex interplay of factors, including the specific challenges presented by the particular plot of land, the type of amendments being used, and the goals of the gardener or farmer. For best results, a thoughtful and holistic approach to soil amendment should be taken, with a focus on improving overall soil health and fertility over the long-term rather than pursuing quick fixes or shortcuts.

Can you use too much soil amendment?

Yes, you can use too much soil amendment. Soil amendment is used to improve soil fertility, texture, and structure, but too much of it can harm plants and cause problems in the long run. Over-applying soil amendments can cause nitrogen burn, where the soil contains so much nitrogen that it “burns” the roots of plants.

This can lead to stunted growth and even death of plants.

Additionally, using too much soil amendment can cause soil compaction, which prevents roots from penetrating the soil and accessing water and nutrients. This can lead to root rot and other diseases that can damage or kill plants. The excess soil amendment can also reduce soil drainage, leading to waterlogging and other water-related issues.

Furthermore, using excessive soil amendment can affect the pH balance of the soil. Overuse of lime or other alkaline soil amendments can make the soil too alkaline, while using excessive amounts of acid amendments can lead to soil becoming too acidic. This can affect the ability of plants to absorb nutrients from the soil.

Therefore, it is important to use soil amendment as per the recommended doses from experts or manufacturers. Any excess should be avoided or used carefully, and it is recommended to perform soil testing to ensure the soil pH balance and other factors remain favorable for the growth of plants. It is important to keep in mind that while soil amendment can be extremely helpful in improving soil quality, it is not a guaranteed solution to all soil-related issues.

What can be used to amend hard soil?

Hard soil is a common issue that people face in their gardens, lawns, and agricultural fields. The soil becomes hard when it lacks proper nourishment, which causes it to lose its texture, nutrients, and pore spaces. In such a situation, it becomes challenging to plant new seeds or trees, as the roots are not able to penetrate deeper into the soil.

Thankfully, there are various methods that gardeners and farmers can use to amend hard soil.

1. Organic Matter:

One of the most effective ways to improve hard soil is to add organic matter. It can be anything from compost, manure, grass clippings, leaves, or any other decomposed material. Adding organic matter enhances the soil’s texture, the ability to absorb water and nutrients, and creates a favorable environment for beneficial microbes.

2. Lime:

Soil that is too acidic can become hard and compacted, so adding lime is an excellent way to reduce acidity in the soil. Lime is an alkaline substance that neutralizes acidic soil, thus creating a more favorable environment for root growth.

3. Sand:

If the soil in your garden or farm has too heavy of a clay content, then adding sand will help to loosen and create more space between soil particles. The increased spaces in the soil allow better water penetration, aeration, and drainage.

4. Soil Aeration:

Soil aeration is the process of using specialized equipment to create small holes in the soil, which will help to loosen compacted soil. This process will increase water absorption, aeration, and nutrient absorption by the plant roots.

5. Cover crops:

Planting cover crops like clover, alfalfa, or other legumes can also be an effective way to improve hard soil. Cover crops add organic matter to the soil when they are tilled in, and their roots help to break up compacted soil.

In Conclusion, hard soil can be a frustrating and challenging problem for any gardener or farmer, but the methods listed above can help amend the soil and make it fertile again. By using these techniques, you will be able to create a more productive garden, lawn, or farm with improved plant growth that will provide better yields.

How do you flush living soil?

Living soil refers to a soil system that is rich in beneficial microorganisms, nutrients, and organic matter. It is designed to mimic the natural conditions of a healthy soil ecosystem, providing optimal growing conditions for plants. Over time, however, these living soil systems can become overwhelmed with excess nutrients, salts, and other toxins that can harm the plants they support.

To address this issue, gardeners and farmers may need to flush the soil.

Flushing living soil involves leaching out excess nutrients and salts to restore the soil to a healthier equilibrium. There are several methods to flush living soil, but they often involve saturating the soil with water to promote the movement of excess nutrients and salts. Below are some general steps for flushing living soil:

1. Stop adding any additional nutrients or amendments to the soil. This will allow the soil to use up the existing nutrients, reducing excess buildup.

2. Water the soil deeply with plain, pH-balanced water. Use enough water to saturate the soil and allow it to drain fully.

3. Repeat step 2 several times over the course of a few days or a week, depending on how severe the nutrient buildup is. Make sure to allow the soil to dry out somewhat in between watering sessions.

4. Monitor the drainage water for any changes in color, smell, or pH. If the water remains murky, has a strong odor, or shows a high or low pH, continue flushing until the water coming out is clear and odorless.

5. Once the soil has been flushed, wait a few weeks before adding any additional nutrients or amendments. This will allow the soil to adjust to its new equilibrium and avoid overloading it again.

It’s important to note that flushing should only be done when necessary to avoid depleting the soil of essential nutrients. Regular testing and monitoring of soil nutrient levels can help prevent nutrient buildup and the need to flush. Additionally, practicing good soil management techniques, such as crop rotation, composting, and cover cropping, can help maintain living soil systems and avoid nutrient imbalances.

How much soil amendment do I need?

The amount of soil amendment you need will depend on several factors, including the size of your garden or planting area, the type of plants you intend to grow, the condition of your soil, and the type of soil amendment you plan to use.

To determine how much soil amendment you need, start by measuring the area you plan to use it on. You can do this by using a measuring tape or by simply pacing out the area and multiplying the length by the width. Once you have your measurements, you can use a soil calculator to determine how much amendment you need based on the type of soil amendment you plan to use.

It’s important to note that different plants have different soil requirements, so you’ll need to choose a soil amendment that will provide the nutrients your plants need to thrive. For example, if you’re planting acid-loving plants such as blueberries, you may want to use an amendment like peat moss or pine needles to lower the soil pH.

If you’re planting vegetables, you may want to use a balanced amendment like compost or aged manure to add organic matter and nutrients to the soil.

Another factor to consider is the condition of your soil. If your soil is compacted or has poor drainage, you may need to use a larger amount of amendment to improve its structure and prevent waterlogging. In some cases, you may also need to use additional amendments like sand or perlite to improve drainage and aeration.

The amount of soil amendment you need will depend on several factors, including the size of your garden, the type of plants you intend to grow, the condition of your soil, and the type of soil amendment you plan to use. By considering these factors and using a soil calculator to determine the appropriate amount, you can ensure that your plants have the best possible growing environment.

How often should you amend your soil?

The frequency with which you should amend your soil depends on various factors, such as the type of soil, the plants you are growing, the weather conditions, and the kind of amendments used. Typically, it is recommended to amend the soil every 2-3 years. However, if you have heavy clay soil or sandy soil, you may need to amend more frequently.

If you are growing annuals, you can amend the soil every year before planting new crops. Perennial plants may not require frequent amendments since they grow slowly, and their roots penetrate deep into the soil. Additionally, the amendments you use will have a different effect on your soil. For instance, organic matter such as compost, manure, or leaf mold will break down over time, adding nutrients and improving soil structure.

If you notice any signs of nutrient deficiency or uneven plant growth, you may need to amend the soil. Pay attention to the pH level and check whether it’s within the range suitable for the plants you are growing. Typically, a neutral pH of 7.0 is ideal for most plants, but some species require acidic or alkaline soil.

Amending your soil depends on various factors, and there is no fixed rule as to how often you should do it. However, regular soil testing and observation of plant growth can help you determine the appropriate time to amend your soil. By doing so, you will provide the necessary nutrients and maintain the soil structure, leading to healthier plants and greater yields.

What does heavily amended soil mean?

Heavily amended soil is soil that has undergone substantial changes in its original composition through the addition of organic and inorganic materials. Soil amendments are materials that are added to soil to improve its physical and chemical properties, such as texture, fertility, nutrient levels, water-holding capacity, and drainage.

Soil amendments can be organic, such as compost, manure, and peat moss, or inorganic, such as sand, perlite, and vermiculite.

Heavily amended soil is typically created in situations where the original soil is not suitable for growing plants or crops, such as in urban gardens or areas with poor soil quality. The process of amending soil involves mixing in the chosen materials until they are evenly distributed throughout the soil.

One of the key benefits of heavily amended soil is its ability to support healthy plant growth. By improving the soil’s nutrient content, water retention, and drainage, plants are provided with the necessary resources to grow and thrive. Additionally, heavily amended soil can help to support biodiversity by encouraging the growth of beneficial microorganisms that live in the soil.

However, it is important to note that the process of amending soil can have both positive and negative impacts. Over-amending soil can lead to imbalances in nutrient levels and can actually hinder plant growth. Additionally, if the amendments used in the soil are not organic, they can cause environmental pollution and harm to wildlife.

Heavily amended soil is a soil that has been enriched with additional nutrients and organic matter to improve its fertility and ability to support plant growth. When done correctly, this process can lead to significant benefits for both plants and the environment.

How do I save onions to plant next year?

If you’re interested in planting onions for next year’s crop, you’ll be pleased to know that it’s a relatively simple process. All you need to do is save some of your onion bulbs from this year’s harvest and store them carefully until they are ready to be planted in the spring. Here are a few steps to help you get started:

1. Choose Your Onions: The first step in saving onions for planting next year is to choose the right bulbs. You’ll want to select those that are firm, healthy, and disease-free. Avoid any that are soft, mushy, or have signs of mold or rot.

2. Cure the Onions: Once you’ve harvested your onions, allow them to dry out fully before storing them. Spread them out in a well-ventilated area where they can receive plenty of sunshine and air. Let them cure for at least two weeks before moving on to the next step.

3. Store the Onions: Once your onions are fully cured, it’s time to store them for the winter. Choose a cool, dry place where they’ll be protected from the elements. A garage, basement, or root cellar all work well. You can store them in mesh bags or cardboard boxes, but be sure to label them so you know which ones to save for planting.

4. Prepare for Planting: In the spring, about six to eight weeks before you plan to put your onions in the ground, choose the largest, healthiest bulbs from your storage batch. To prepare them for planting, cut off the tops and roots, leaving about 1/2 inch of stem attached to the bulb.

5. Plant Your Onions: When the soil is ready and temperatures are warm enough, plant your onions in rows, about 3-4 inches apart, with the bulb tops sticking out of the ground. Water them well and keep the soil moist but not waterlogged. During the growing season, keep an eye out for pests and disease, and harvest your onions when the tops start to yellow and fall over.

Saving onions for planting next year is an easy and cost-effective way to keep your garden growing year after year. With a little bit of planning and care, you can have a bountiful crop of fresh onions to enjoy for months to come.


  1. How to Amend Soil for Growing Onions – Home Stratosphere
  2. Soil Preparation for Onion Plants – Stark Bro’s
  3. What to Plant After Onions — Interesting Plants! – Plantophiles
  4. Soil Prep for Alliums – The National Gardening Association
  5. How to Amend and Fertilize Garden Bed Soil Between Seasons