Soybeans in early spring prevent root rot in advance
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Soybean root rot was mainly caused by soil compaction, which caused the growth of pathogenic bacteria such as Fusarium, Pythium, Rhizoctonia solani, and P. purpureus in the soil. The pathogen invades the seed radicles, which in turn causes the soybean roots to rot and die. The condition of the seedlings generally increased rapidly from the seedlings to the early flowering stage. After the flowering period, the disease condition reached the peak period, and then with the aging of the root bark, the condition grew slowly. Soybean root rot is the most difficult disease to control in soybean field. However, identifying the cause of the disease and doing preventive work well in advance can greatly reduce the harm of the disease and ensure that soybean can achieve high yield.
The key point for controlling soybean root rot is to improve the soil environment, break down the soil compaction, and provide a good soil environment for the growth of soybean roots, so as to protect the main roots, protect the seedlings, improve the ability of soybean plants to resist disease, drought and cold, and delay the infection. , mitigate harm.
According to Zhao Shujun of Weifang Township, Pingyuan Town, Shandong Province, last year he sprayed a "no deep-cultivation" soil conditioner on the soybean field and discovered that the soil was loose, and the water seepage was fast when water was applied. Soybean was not blighted or rooted. After more pods and well-proportioned beans, the output also increased by nearly 20%. The soil of Yang Jizhong's soybean farm in Zhangtang Village, Pingyuan County, is very hard and the soybeans often lack water and die during drought. Last year, after he had used “no deep plowing†in the soybean field, the soil compaction was broken, the soil moisture was kept, the small fruit of the soybeans became big, and the yield was increased and the income was increased, and good results were achieved.
The "free deep plowing" soil conditioner is a patented product produced by the state-owned high-tech enterprise Chengdu New Chaoyang Biochemical Co., Ltd. It can physically improve the soil, effectively breaking soil compaction, loosening the soil, deepening the plough layer, effectively reducing the loss of water and soil and fertilizers, increasing the utilization of fertilizers, saving more than 30% of fertilizers, and enhancing the ability of the soil to resist drought. The internal moistening time is extended to provide sufficient nutrients and moisture for the growth of the plant to meet the normal growth and development of the plant. The product is suitable for all kinds of soils under different crops such as grain, oil, fruit, vegetables, flowers and nursery stock.
Through practice, it has been proved that after applying the “no deep plowing†in soybean fields, the soil permeability is enhanced, water, fertilizer, gas, and heat are coordinated with each other, and the ground temperature is stable. On the one hand, the aerobic microorganisms in the soil increase, Fusarium, Pythium, Rhizoctonia The harmful bacteria such as the nuclear bacteria and the purple penicillium can hardly breed and reduce the infection of pathogens. On the one hand, “no deep plowing†creates a good soil environment for soybean roots, makes the soybean roots grow robustly, and the cell wall thickens, and resists diseases and droughts. With enhanced capabilities, pathogens cannot invade, which greatly reduces the occurrence of soil-borne diseases such as root rot and pythium, laying a solid foundation for high-quality, high-yield soybeans.
Method of use: Generally, before soybean sowing or after 4 to 5 true leaves, a bottle of deep ploughing per acre is not needed (depending on the condition of soil compaction, and the amount of the drug can be increased in severely compacted land). Water 60-100 kg in soil When wet or when there is no water after the rain, spray directly on the soil surface. If weeds are in the ground, weeds or herbicides should be sprayed and sprayed to prevent deep plowing.
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