Five key cultivation techniques for green vegetables
The following five measures should be taken during planting:
?, a good seed off: the selection of high-quality, high-yield, pest-resistant seed.
Second, the preparation before the good broadcast:
1. Soil reversal. Before planting, the soil should be ploughed and exposed as early as possible to remove residual roots and leaves, and to eliminate the remaining pathogens and insect sources in the soil.
2. Seed treatment. Soaking in warm water, that is, immersing in warm water of 55°C for 15 minutes, can kill pathogens attached to the seed surface.
Third, the good cultivation management: strengthen management, timely seedlings Dingmiao, weeding weeding, removal of diseased plants, control of pest transmission.
Fourth, the good fertilization off:
1. Basal fertilizers are mainly organic fertilizers. Organic manure must be fully decomposed to reduce pathogenic bacteria and eggs.
2. Composting should be based on decomposed fecal urine, supplemented by multiple compound fertilizers. Prevent excessive topdressing of nitrogen fertilizers leading to leggy. Fertilizers such as urea, diammonium phosphate and other fertilizers should be discontinued 15 days before the harvest.
3. Reasonable use of hormones and trace elements. Use concentrations and dosages in strict accordance with the label instructions to prevent overdose from causing injury. ??
Fifth, to make a good prevention and control:?
"Being based on physical methods, biological pesticides are at the forefront, earth-based pesticides are supporting actors, and high-efficiency, low-toxicity, low-residue chemical pesticides are helpful, and highly toxic pesticides are not applied to fields."
1. Use physical methods to exterminate insects. For example, the use of non-polluting insecticidal yellow tablets, which utilizes the susceptibility of adults such as aphids, whiteflies, and leafminers to yellow, has a strong yellowing property, and is accompanied by special yellow glue with specific viscose to trap and kill pests. purpose. ??
2. Use biological pesticides and plant pesticides as much as possible. Prevention of Pieris rapae and Plutella xylostella with BT emulsion of P. infestans; control of bacterial keratoses, Chinese cabbage soft rot and black rot with agricultural streptomycin; control of damping-off and root rot with Jinggangmycin; 107 killing aphids control aphids. ??
3. Use chemical pesticides scientifically. Must strictly implement the "Pesticide Management Regulations" and "Pesticide Safety Interval Regulations" and prohibit the use of methamidophos, methyl isophosphorus and other highly toxic high-residue pesticides. ??
Shower Gel,Shower Cream,Body Shower Gel,Foaming Shower Gel
Guangzhou Lingxue Cosmetics Co., Ltd , https://www.gzlxgj188.com