Soybean is not suitable for continuous cropping.
The control technology of continuous cropping of soybean can slow down the effect on yield.
The effect on soybean yield. Different environments have different effects on soybean yield. ① heavy cropping and light continuous cropping; heavy ② in the west and southwest and light in the north and east; heavy thin land and light fertilised land in ③; heavy slope in ④, light in low wet area; heavy dry year and young rain in ⑤; heavy no or less fertilization in ⑥, light in more fertilizer; heavy sowing in ⑦ and light in ploughing and renovation; heavy underground diseases and insect pests in ⑧, light in underground diseases and insect pests; ⑨ mature land is heavy, newly reclaimed land is light; ⑩ drought is heavy, irrigation is light. The East fourth League in Inner Mongolia Autonomous region is similar to its neighboring provinces, in which the Huleng area is similar to the northern part of Heilongjiang Province, and the serious phenomenon is also very serious. Today, I would like to talk about three issues: the first is the effect of soybean continuous cropping on soybean yield and quality; the second is the reason of soybean continuous cropping; the third is the control technology.
Effect on the quality of soybean
The 100-grain weight of continuous cropping soybean decreased, the diseased grain rate and insect feeding rate increased, and the commodity quality decreased significantly. According to the investigation in Fujin, Hulin and other places in Heilongjiang, the average 100-grain weight of pre-cropping soybeans is 18.2 grams, which is 2.7% lower than that of normal-cropping soybeans, and the average 100-grain weight of continuous cropping soybeans is 18.0 grams, 3.7% less than that of regular-cropping soybeans. The diseased grain rate and insect feeding rate of soybeans in the first cropping increased by 39.7% respectively compared with the first stubble, and the diseased grain rate and insect feeding rate of continuous cropping soybeans increased by 95.5% compared with the first stubble. The protein and fat content of soybean was significantly increased and decreased after more than three years of long-term cropping, while the protein content and fat content of soybean were significantly increased after more than three years.
- Prev
What chemicals should be used to control soybean in cotyledon stage
It can be controlled with fomesafen (Huwei, Alternaria). Generally, when the soybean has 1 to 3 compound leaves, it is evenly sprayed with 25% fluorosulfonate water agent 68 ml per mu and 20 kg water per mu. Fomesafen is a selective contact herbicide, which is mainly absorbed by weeds, stems and leaves, and can also be absorbed by roots. It is suitable to be used in the field after self-growing rape is almost ready.
- Next
Non-continuous cropping soybean
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.
Related
- Fuxing push coffee new agricultural production and marketing class: lack of small-scale processing plants
- Jujube rice field leisure farm deep ploughing Yilan for five years to create a space for organic food and play
- Nongyu Farm-A trial of organic papaya for brave women with advanced technology
- Four points for attention in the prevention and control of diseases and insect pests of edible fungi
- How to add nutrient solution to Edible Fungi
- Is there any good way to control edible fungus mites?
- Open Inoculation Technology of Edible Fungi
- Is there any clever way to use fertilizer for edible fungus in winter?
- What agents are used to kill the pathogens of edible fungi in the mushroom shed?
- Rapid drying of Edible Fungi