Difference of Base Fertilizer Before Broadcasting of Wheat Rape in Cotton Region

Generally, in the two mature cotton areas, the former crops of cotton are mainly wheat and rapeseed, and the others are barley, broad beans, and vegetables. However, most of the two mature cotton areas are recommended to account for 80-90% of wheat and rapeseed. In order to obtain good harvests for cotton and rapeseeds before cotton, basic fertilizers must be applied according to the changes in wheat, oil, and cotton planting patterns and cultivation levels in recent years. Before the harvest of wheat and rapeseed planted in this year's cotton area, both crops are growing better. Farmers are expected to have a good harvest. After several consecutive days of raining in early May, wheat and rape crops generally fell, resulting in a large area of ​​reduced output. Received. In addition to the relatively effective period of resistance of some varieties to lodging and disease resistance, it is closely related to improper use of base fertilizers. From the perspective of the application of base fertilizer, first, some farmers prefer to apply nitrogenous fertilizer, neglecting phosphorus and potassium, resulting in prolonged growth of wheat, rapeseed, shading in the fields, and greatly impaired lodging resistance; Second, the area of ​​cotton manure application is getting larger and larger. The number of peach manure is increasing. The peach fertilizer that hasn't been used up in cotton can play the role of base fertilizer for wheat and rapeseed. Some inexperienced farmers reapply fertilizer, which will inevitably cause excess nutrient growth in wheat and rapeseed; Aging facilities, regulating the decline of water and fertilizer function, weakening the ability to supply fertilizer; Fourth, wheat seeding volume is too large, live rape area increased, the density increased exponentially, uneven distribution of fertilizer is also difficult to seedlings; Fifth, fertilizer control is not in place. At present, the autumn sowing is imminent, and the wheat and rape base fertilizers should be applied scientifically according to the changes in the planting patterns and cultivation techniques in the cotton regions. One, high fat cotton field can not apply base fertilizer. For excellent soil quality and high levels of cotton fertilization, especially for plots with more peach fertilizer, sowing or rapeseed, it should be clearly stated that the base fertilizer should not be applied temporarily, and fertilizers should be applied according to wheat and rape if appropriate. Second, low-fertilizer cotton field appropriate amount of fertilizer. First, the soil with poor soil quality and low levels of cotton fertilization should emphasize the proper use of base fertilizer; second, the use of base fertilizer should be applied to the conversion of paddy fields to cotton fields; and third, the use of base fertilizer should be applied to transplant rape. Generally, about 3,000 kilograms of farmyard manure is applied per mu, or about 40 kilograms of domestic compound fertilizer, or about 25 kilograms of imported compound fertilizer. Third, create conditions and enhance resilience. The first is to use wheat, rape rape, lodging resistance, disease-resistant varieties; second is to improve farmland facilities, enhance the regulation of fertilizer and water; third is to reduce nitrogen fertilizer, increase phosphorus and potassium, rapeseed pods per kg to force 0.5 kg of boron; The fourth is to strengthen the monitoring of the situation of the seedlings and carry out chemical regulation of wheat and rape in a timely and appropriate manner.

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