Determination of sowing amount of direct seeding rape

The sowing quantity of direct seeding rape should be determined according to the size of 1000-grain weight. For varieties with large 1000-grain weight, the sowing quantity can be appropriately increased; on the contrary, for varieties with small 1000-grain weight, the sowing quantity should be appropriately reduced. Generally, the seeding rate per mu is 0.25 kg. Interseeding can be increased appropriately. Rapeseed seeds are small, so it is difficult to sow sparsely and evenly. When sowing, plant ash and fine soil can be added and 3 - 4 kg urea can be added per mu to mix and spread evenly, which is not only conducive to sparse sowing and even sowing, but also conducive to seedlings absorbing enough nutrients as soon as they emerge to meet the needs of their growth and development.