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 was popularized, some improvements were made according to the specific conditions, such as reducing row spacing, three rows of fine sowing on ridges, etc.
Increase yield and efficiency: soybean "ridge three" cultivation technology improves the structure of cultivated layer, expands soil capacity, promotes soil permeability, improves ground temperature, and then coordinates the relationship between water, fertilizer, air and heat, promotes the growth of soybean roots; increases green area and improves light utilization rate. Double strip precision sowing on the ridge makes the plant distribution more uniform, overcomes the phenomenon of uneven emergence in the past; layered fertilization improves the fertilizer utilization rate, changes the original shallow fertilization method, exerts the fertilization position effect, increases the area of soybean roots contacting fertilizer, ensures the demand of soybean for nutrients in the flowering and pod stage, and prevents premature aging of plants. Compared with common ridge cultivation, the yield can be increased by more than 10%, and the annual soybean yield can be stabilized at more than 165 kg per mu.
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Cultivation techniques of Film mulching between large ridges and upward ridges of Soybean
Heilongjiang Province is the main soybean producing area in China, its planting area accounts for 7% of the country's total output, accounting for 11% of the country's total output. In the process of soybean production and development, Heilongjiang reclamation area has vigorously promoted scientific and technological innovation, which has greatly improved the per unit area yield and total yield of soybean. From 2001 to 2005, the average yield per hectare reached 2531.7kg, and in 2005, the average yield per mu of soybean reached 178kg, which reached or close to that of advanced countries in the world. Cultivation techniques of Film mulching between large ridges and upward ridges of Soybean
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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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