Fertilization of rapeseed must be rationally applied according to the fertility characteristics, nutritional characteristics and fertilizer requirements of rapeseed. The fertilization of rapeseed can be divided into three parts: base fertilizer, top dressing and seed fertilizer. The base fertilizer refers to the compound fertilizer applied to the farmland before or during transplanting; the fertilizer applied after emergence or transplanting is collectively referred to as top dressing.
In the life of rapeseed, the principle of total fertilization is: apply enough base fertilizer, apply early seedling fertilizer, re-apply wax fertilizer and manure fertilizer, and skillfully apply flower fertilizer. The base fertilizer should account for 60% of the total fertilizer, and the top dressing should account for 40% of the total fertilizer. Dong Zhuang is the basis for high yield of rapeseed. Spring is the key to high yield. Dong Zhuang Chun Fa is both economic and stable. According to the analysis of the China Oil Crops Research Institute, the number of green leaves in the wintering rapeseed plants is positively correlated with the number of branches and the yield per plant in the next year. In the range of 4-11 leaves, each time a single plant adds one green leaf. After the year, the number of branches per plant can be increased by 0.6-0.7, and the yield per plant can be increased by 1,6-2 grams. If the actual income is 150,000 plants per hectare, the yield per hectare can be increased by 282.5 kilograms, which shows that the rapeseed is applied to the base fertilizer and promotes the importance of rapeseed to increase production. For the lack of sufficient base fertilizer, promote the importance of rapeseed winter to increase production. For the case where the base fertilizer is not applied, or the application amount of the base fertilizer can not meet the requirements of the fertilization of rapeseed, the leaf color is faded, and the field with obvious de-fertilization should be increased with the application of wax fertilizer, generally 45-60 kg of urea is applied, or ammonium bicarbonate is applied. 112.5-150 kg. Manure is the most important fertilizer in the life of rape. The application time of manure is generally applied when the bud reaches the elongation of the stalk, and the yield is high.
In summary, in the current large-scale production of rapeseed, the rapeseed should be produced at a high yield and stable yield. The application of fertilizer should pay attention to the combination of organic and inorganic fertilizers, and the combination of nitrogen, phosphorus, potassium and trace elements. Inorganic fertilizers should be widely used to promote long-acting compound fertilizers. Long-acting compound fertilizers produced by long-acting ammonium bicarbonate, ammonium phosphate, potassium sulfate and boron fertilizers as mother fertilizers can be applied as one base fertilizer on rapeseed, and no longer pursued in later stage. Fertilizer and wax fertilizer have achieved significant yield-increasing benefits. According to the test results of the Agricultural Technology Extension Station of Shandan County, Gansu Province, the long-acting compound fertilizer was used as the base fertilizer for one-time application. The yield per hectare was as high as 5250 kg, which was more than 15% higher than the common fertilization method.
In the life of rapeseed, the principle of total fertilization is: apply enough base fertilizer, apply early seedling fertilizer, re-apply wax fertilizer and manure fertilizer, and skillfully apply flower fertilizer. The base fertilizer should account for 60% of the total fertilizer, and the top dressing should account for 40% of the total fertilizer. Dong Zhuang is the basis for high yield of rapeseed. Spring is the key to high yield. Dong Zhuang Chun Fa is both economic and stable. According to the analysis of the China Oil Crops Research Institute, the number of green leaves in the wintering rapeseed plants is positively correlated with the number of branches and the yield per plant in the next year. In the range of 4-11 leaves, each time a single plant adds one green leaf. After the year, the number of branches per plant can be increased by 0.6-0.7, and the yield per plant can be increased by 1,6-2 grams. If the actual income is 150,000 plants per hectare, the yield per hectare can be increased by 282.5 kilograms, which shows that the rapeseed is applied to the base fertilizer and promotes the importance of rapeseed to increase production. For the lack of sufficient base fertilizer, promote the importance of rapeseed winter to increase production. For the case where the base fertilizer is not applied, or the application amount of the base fertilizer can not meet the requirements of the fertilization of rapeseed, the leaf color is faded, and the field with obvious de-fertilization should be increased with the application of wax fertilizer, generally 45-60 kg of urea is applied, or ammonium bicarbonate is applied. 112.5-150 kg. Manure is the most important fertilizer in the life of rape. The application time of manure is generally applied when the bud reaches the elongation of the stalk, and the yield is high.
In summary, in the current large-scale production of rapeseed, the rapeseed should be produced at a high yield and stable yield. The application of fertilizer should pay attention to the combination of organic and inorganic fertilizers, and the combination of nitrogen, phosphorus, potassium and trace elements. Inorganic fertilizers should be widely used to promote long-acting compound fertilizers. Long-acting compound fertilizers produced by long-acting ammonium bicarbonate, ammonium phosphate, potassium sulfate and boron fertilizers as mother fertilizers can be applied as one base fertilizer on rapeseed, and no longer pursued in later stage. Fertilizer and wax fertilizer have achieved significant yield-increasing benefits. According to the test results of the Agricultural Technology Extension Station of Shandan County, Gansu Province, the long-acting compound fertilizer was used as the base fertilizer for one-time application. The yield per hectare was as high as 5250 kg, which was more than 15% higher than the common fertilization method.
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