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.
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Cultivation Technique of Soybean-Soybean "Ridge Three"
In the early 1980s, Heilongjiang Bayi Agricultural Reclamation University adopted the combination of agricultural machinery and agronomy, and gradually formed a complete set of effective mechanized high-yield comprehensive cultivation technology system of soybean, called "ridge three"(or "ridge three") cultivation technology. The so-called "ridge three" refers to the adoption of three mechanized operation techniques on the basis of ridge cultivation: one is deep loosening at intervals between ridges and furrows, the other is deep application of base fertilizer in layers, and the third is double strip precision sowing on ridges. The above three operations are completed by machinery at one time. After this technology is popularized, according to
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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 four League of Inner Mongolia Autonomous region and its
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