MySheen

Non-continuous cropping soybean

Published: 2024-11-24 Author: mysheen
Last Updated: 2024/11/24, Soybeans are commonly known as soybeans, and farmers have the traditional habit of planting soybeans this year and next year, resulting in slow growth, dwarfism, yellowing of leaves, easy infection of diseases and insect pests, fewer pods and small seeds, and a significant decrease in yield. According to the investigation, in general, the yield of soybean continuous cropping is reduced by 20% to 30% or more, and the main reason for the yield reduction is that diseases and insect pests are prone to several diseases parasitic on soybean, such as bacterial spot, black spot, Rhizoctonia solani, yellow blight and so on. There must be a large number of diseases in soybean continuous cropping soil.

Soybeans are commonly known as soybeans, and farmers have the traditional habit of planting soybeans this year and next year, resulting in slow growth, dwarfism, yellowing of leaves, easy infection of diseases and insect pests, fewer pods and small seeds, and a significant decrease in yield. According to the survey, under normal circumstances, the yield of soybean is reduced by 20%, 30% or more, and the main reasons for the reduction are as follows:

Diseases and insect pests are prone to several diseases parasitized by soybean, such as bacterial spot, black spot, bacterial blight, yellow blight, etc., which are bound to occur in a large number of soybean continuous cropping soil, especially nematode disease.

The toxic effect of root microbial exudates soybean roots can secrete some acidic substances and form some toxic substances, such as ferrous salts, which are left in the soil, so that the normal process of nutrition and metabolism of continuous cropping soybean is affected, the root system is underdeveloped, the activity of rhizobium is weakened, plant growth is inhibited, resulting in reduced yield.

Excessive consumption of nutrition due to excessive consumption of phosphorus nutrition in the soil due to soybean continuous cropping, the imbalance of available nitrogen and phosphorus affects the growth of soybean, therefore, it is necessary to avoid continuous cropping in soybean production, and it is best to implement rotation with other crops for more than three years.

 
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