Key Technical Points for Digging Drainage Ditches Before Wintering in Direct-Seeded Rapeseed

(Agricultural Wealth Network) Before wintering, direct-seeded rapeseed fields need a complete ditch system that is cleared in a timely manner. Direct-seeded rapeseed is mainly planted after rice, and the soil is wet and heavy, while the alternating autumn and winter season brings abundant rain. Rapeseed likes moisture but does not tolerate waterlogging, so direct-seeded rapeseed, especially that sown late with small seedlings, is affected considerably. Direct-seeded rapeseed generally requires 1 field ditch every 2 to 3 beds, with a ditch depth of about 30 cm; a longitudinal ditch is dug in the field, with a depth of about 40 cm. At the same time, to prevent the ditch system from becoming blocked by collapse and other causes, the ditch system should also be cleared well to ensure it remains unobstructed.