After the flood has started, the amount of rainwater is gradually increasing. Therefore, after the spring, it is necessary to clean up the “three ditch†(main ditch, gutter, and ditch) and eliminate the water in the fields to prevent waterlogging.
One pest prevention is to deepen the "three ditch" to reduce the groundwater level; the second is to remove the old leaves, improve the ventilation and light conditions; the third is in the early stages of disease, 200 grams per mu with diarrhea, 60 kg of water, or 50 Carbendazim 150 grams, add water 50 kilograms, spray control. The locusts were found to be infested and sprayed with 800 to 1000 times the 40% dimethoate emulsion.
Anti-lodging Wen Shi Fei Fei is the key to preventing lodging. If the plant leaves are small and fine, the ammonium bicarbonate should be applied at 5 to 10 kilograms. However, you must not apply excessive amounts of fertilizer to prevent lodging.
Anti-premature failure Spring rape growth, the lack of manure, yellowing before flowering, lack of fertilizer dehydration, premature aging phenomenon of the field, in the initial flowering period Mushi ammonium 15 to 20 kg, to prevent premature aging defertilization.
Air defense pods in the rape bud stage and early flowering period, use 100 grams of borax per acre (first dissolve with a small amount of hot water), add 50 kg of water to each spray once, effectively stop the "silhouette", increase the rate of seed setting, and strong grain effect.
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