What to do about sweet potato growing after rain?
Sweet potato shoots flourish, you can choose 15% paclobutrazol wettable powder 50 grams per mu plus water 50 kg spray, or spray 500 mg / L ethephon solution 100 kg per mu, generally chemical control 2-3 times better. Vine lifting and coring can also control the shoot growth of sweet potato to some extent.
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How to use drugs to control organic asparagus diseases and insect pests
(1) the common diseases of asparagus are quenching, stem blight and carbon gangrene, and the main pests are beet armyworm, cabbage armyworm, corn borer, aphids, planthoppers, ground tigers, grubs and other underground pests. (2) in the process of production, the control methods should be from the whole ecosystem such as crop-disease and Cordyceps sinensis.
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Harvesting sweet potatoes also has skills.
Sweet potato is a vegetative vegetative body, and there is no obvious maturity standard and harvest time, but the harvest sooner or later has an effect on the yield, seed retention, storage, processing and utilization of sweet potato and crop rotation. Harvest too early, will significantly reduce the yield of sweet potato; harvest too late, sweet potato is often affected by low temperature chilling injury, not resistant to storage, cutting.
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