Proviron,CAS 1424-00-6,Steriods Food additive Herbicide Co., Ltd. , http://www.chherbicide.com
In daily life, it is often said that “the dishes are scallions, ginger and garlic, and the scent is in the majorityâ€. It can be seen that there is a large demand for small onions in the market, and the proportion of onions in the proportion of vegetables is also increasing. The following are some of the highlights of the cultivation techniques for improving onion production: 1. Adjusting the temperature and timely sowing: The appropriate temperature for onion growth is 10-25°C. For example, all seasons of onions in Luzhou can be grown all year round, and the quality is good. Strong. In the summer hot season, shade nets can be used to cover cooling, and in winter, small arch shelters can be used to cover the insulation. 2, fine soil preparation, Shizu base fertilizer: Scallions should be grown in loose fertile soil. Before planting shallots, the land must be fully sun-dried to minimize the number of pests. With decomposed Organic Fertilizer as the base fertilizer, the general Mushi 2500 kg, with the application of ternary compound fertilizer 40 kg. 3, nurturing strong seedlings, dense planting shallow planting: regardless of live or transplanting, we must nurture a strong seedlings, generally about 10.5 kilograms per acre sowing rate, so that uniform fine broadcast.畦 1.2 meters wide, too wide unfavorable management. The depth of transplanting should not be too deep, and the density should not be diluted. Depth 6-7 cm, spacing 15-10 cm, 3-5 per hole. 4, thin fertilizer light, moist soil: small onion growth period is short, a few more pods, live 60-80 days seedlings listed, transplanting seedlings listed 30-40 days, timely watering after planting, keep the soil moist, generally about 7 days Pouring water once, combined with topdressing, topdressing with 0.2% urea. 5, disease prevention and pest control, reduce pollution: Shallot disease mainly downy mildew, available 25% metalaxyl 500 times spray, insect pests mainly onion, leaf miner, can be used again net, avermectin control.