To what extent are cover crops capable of enhancing SOM levels? Also, how long does it take for the organic matter level to increase?
is a difficult question would be necessary experiments of years, to know
according to the literature about it but you can check the following link where the subject of your question is discussed maybe help you
https://www.sare.org/Learning-Center/Books/Building-Soils-for-Better-Crops-3rd-Edition/Text-Version/Cover-Crops/Types-of-Cover-Crops
Cover crops basically for offering protection to the soil. The benefit of C addition is by way of retaining them on the soil surface.
The fastest way to enhancing SOM is by including the crops that accumulate the highest dry matter in a short time frame. However, it will depend on the climatic condition and the soil type.
My experience in the tropical conditions is that it takes greater time to result in an increase in the SOM.
From published litt. it seems a good option to include a mix of legumes and cereals as a cover crop so that there is a balance in the decomposition of the residues.
Look for the native vegetation in your region!!
agreed with Desouza Blaise answer, but more than than Recommended management practices, like No till, organic fertilization inclusion, can also enhance SOC.
https://www.nrcs.usda.gov/Internet/FSE_PLANTMATERIALS/publications/gapmcpu3011.pdf
https://www.nrcs.usda.gov/Internet/FSE_PLANTMATERIALS /publications/gapmcpu3011.pdf
Conventionally, legumes have well-known reasons to be on the top of species list that capable of achieving such goal. I prefer clovers.
- Badges
- Science topic
- Similar topics
- Correction