Clean up the "three ditch" to reduce moisture and prevent stains. After the "Beginning of Spring" rains increase, we must clean up the "three ditches" early in the field, especially deepen the head ditches and open the ditches outside the field to ensure that the "three ditches" are unobstructed, so that the rain stops the ditches and eliminates the hidden dangers of stains. Reduce groundwater level and field humidity, promote root growth, reduce disease, and prevent premature aging.
Do a good job of weeding after the year. Due to poor soil moisture during sowing, poor sowing quality and poor weeding effect will result. Therefore, in the early stage of rape, when the average daily temperature is above 8 ℃, the chemical removal should be implemented in time. In rapeseed bolting, weeding is combined with intertillage to increase the ground temperature, promote the growth of the root system, increase the absorption capacity of the root system, and also play a role in breaking compaction, reducing water evaporation and protecting moisture.
Topdressing body fat to promote early onset. Rape should be fertilized for seedlings to promote the transformation of seedling conditions. Winter rape is a fertilizer-loving crop. It grows rapidly during the re-greening period and has high requirements for water and fertilizer. In places where there are irrigation conditions, it should be watered back to green water in time, combined with watering and topdressing with appropriate amount of urea (3 kg/mu) or ammonium bicarbonate (5 kg/mu). Kg to 10 kg/mu). Rape should be applied early and re-applied bud moss fertilizer, generally in early mid-February, when the buds are about 3 to 5 cm high, 5 to 8 kg of urea per mu is applied to promote branch development and increase effective branches. Number and silique number.
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