Pigeon pea, a versatile perennial shrub, is often utilized as green manure in various agricultural systems.

Pigeon pea serves as an annual cover crop to suppress weeds, enhance soil fertility, and mitigate erosion. It is an integral component in perennial alley cropping, promoting sustainable agriculture practices through long-term soil improvement. Its nitrogen-fixing properties benefit nearby crops, supporting a healthy agroecosystem. Additionally, pigeon pea can be grown both as an annual crop and as part of a perennial system, offering flexibility and versatility to farmers seeking to improve soil health and productivity.

Pigeon pea is a perennial woody shrub but it can be grown as an annual. It can be grown as an annual cover crop to suppress weeds, add fertility and control erosion. It can be grown in a perennial alley cropping system (trees and crops planted together in rows) as a long term green manure.

Which is the best green manure crop?

The best green manure crop is sunnhemp, dhaincha, pillipesara, clusterbeans, and Sesbania rostrata. These plants are grown specifically for green manure, adding nutrients to the soil and improving its health. Green manure crops also prevent soil erosion, suppress weeds, and increase soil organic matter, creating a more sustainable farming system.

Which crop is used for green manure?

Green manure crops are typically used for improving soil fertility. Additionally, they offer benefits like soil coverage to suppress weed growth and prevent erosion. Some green manures also attract beneficial insects such as bees and hoverflies, which help control pests like aphids. Planting green manure crops can contribute to a healthier and more sustainable garden ecosystem.

How is green manure different from farm yard manure?

Green manure and farmyard manure are both types of fertilizers derived from plants. The key difference is that green manure involves growing specific plants in the field where crops will be grown, which are plowed down and left to decompose as a cover crop. Farmyard manure, on the other hand, consists of animal waste like cow dung that is directly applied as a soil amendment.

1. Green manure involves planting specific cover crops.
2. Farmyard manure is animal waste like cow dung.
3. Green manure improves soil fertility and structure.
4. Farmyard manure provides organic matter and nutrients to the soil.

Why is green manure better?

Green manure is superior because it involves practices like cropping and grazing green manures, such as harvesting field beans, saving a hay crop, grazing red clover, or making silage from a cereal/legume mixture. These methods offer numerous benefits, such as:

1. Increasing soil fertility and organic matter content
2. Improving soil structure and moisture retention
3. Suppressing weeds and reducing the need for synthetic fertilizers
4. Providing habitat for beneficial microbes and insects

These advantages contribute to sustainable agriculture practices and healthier crop yields.

Can you use clover as green manure?

Yes, clover can be used as green manure. Plants grown for green manure are referred to as green manure crops. Some key green manure crops include sunnhemp, dhaincha, pillipesara, clusterbeans, and Sesbania rostrata. Clover has nitrogen-fixing properties that enrich the soil, making it a valuable green manure option for improving soil health and fertility.

What are three examples of green manure?

Three examples of green manure include cover crops like clover, vetch, and ryegrass. These plants help improve soil structure for better drainage or water retention, suppress weeds, and attract beneficial insects and predators to the garden, making them a sustainable and environmentally friendly option for cultivating healthy soils and crops.

Is chickpea a green manure crop?

Yes, chickpea can be used as a green manure crop. Green manure is a natural fertilizer derived from plants, such as chickpeas, which are grown in the field to later be plowed down and decomposed to enrich the soil. This process, known as cover cropping, helps improve soil fertility, structure, and nutrient content, benefiting subsequent crops.

What crops are used as green manure?

Crops commonly used as green manure include Sunhemp (Crotolaria juncea), Dhaincha (Sesbania aculeata), Cluster bean (Cymopsis tetragonoloba), Cowpea (Vigna sinensis), Khesari (Lathyrus sativus), Berseem (Trifolium alexandrium), and Green Gram (Vigna radiata).

1. Including green manure crops in crop rotation can improve soil fertility.
2. Green manure crops add organic matter to the soil, enhancing its structure and water retention.
3. Leguminous green manure crops help fix nitrogen in the soil.
4. Planting green manure crops reduces the need for synthetic fertilizers.
5. Green manure crops can suppress weed growth in fields.

Where do we get green manure?

Green manure can be obtained through cropping and grazing activities. Examples include harvesting field beans, saving a hay crop, grazing red clover, or making silage from a cereal/legume mixture.

1. Field beans can be harvested as green manure.
2. A hay crop can be saved for green manure.
3. Red clover can be grazed to produce green manure.
4. Green manure can be made by silaging a cereal/legume mixture.

Is alfalfa a green manure?

Yes, alfalfa can be considered a green manure. Green manures can be effective for 2 to several months, depending on the variety’s life cycle. The timing to incorporate them into soil varies based on the seed sowing time. It is crucial to bury green manure crops before they go to seed to prevent unwanted growth, regardless of the season.

What is the most common legume used as green manure?

The most common legume used as green manure is red clover. Other popular choices for green manure include alsike clover, alfalfa, and sweet clover.

1. Perennials like red clover and alsike clover are commonly used for green manure.
2. Alfalfa is also a popular legume choice for green manure due to its nitrogen-fixing properties.
3. Annual legumes such as field peas, flat peas (sweet pea family), and lentils are currently used for green manure.

What is the reason why green manure is not commonly used?

Green manure is not commonly used because of the varying lifespan of the crops, ranging from two to several months. The timing of incorporating green manure into the soil is crucial and needs to be done before it seeds, regardless of the planting season. This step helps to prevent any potential issues that may arise from the growth of the green manure crops.

What are four crops likely to be used for a green manure?

Common green manure crops include winter rye, triticale, canola, oil radish, and oil mustard. These crops have good cold tolerance, providing flexibility in the growing season. However, to maximize biomass production, they may need supplemental nitrogen fertilizer.

What are two commonly used green manure crops?

Two commonly used green manure crops are legumes and grasses. Green manure crops incur costs such as seed expenses, soil preparation labor, and the time lost during planting and decomposition. However, it is essential to ensure that the costs involved in planting green manure do not outweigh the potential soil and nutrient benefits it can provide.

What is the green manure method?

The green manure method involves burying pulses and non-pulses crops in the soil during their vegetative growth period to enhance soil fertility and productivity. This practice is known as green manuring, commonly used in Indian farming to improve crop cultivation. Pulse crops play a significant role in this method due to their positive impact on soil health and agricultural sustainability.

Is green manure expensive?

Cowpea green manure is not expensive. Cowpea is grown either to flowering and incorporated as green manure for rice or grown to maturity with grain and pods removed. It collects an average of 68 kg N ha−1, while the aboveground residue after harvesting dry pods contains an average of 46 kg N ha−1. This method provides cost-effective nitrogen enrichment for the soil, promoting healthy crop growth.

In conclusion, pigeon pea serves as an excellent green manure due to its ability to fix nitrogen in the soil, improve soil fertility, and control weeds. Farmers can benefit from incorporating pigeon pea into their crop rotation systems to enhance soil health and increase overall productivity. By understanding the advantages of using pigeon pea as green manure, agricultural practices can become more sustainable and environmentally friendly, ultimately leading to better yields and long-term soil health. Embracing the versatility of pigeon pea can contribute to a more resilient and productive agricultural sector.