Detailed description of dead Miao rotten root special effects

Crop dead seedlings are usually divided into five categories: diseased dead seedlings, insect dead seedlings, phytotoxics, dead roots, dead roots. Pesticide Information Network Xiaobian gives you the support to prevent dead roots:
Before sowing, the seedbed and nutrient soil were not disinfected. After the seedlings were unearthed, they were not sprayed for sterilization, and the temperature and humidity management of the seedbed were improper, which made it easy for the seedlings to collapse and blight. There are four reasons for the rotten roots of crops: low temperature and low ground temperature; insufficient light; large humidity in the nursery bed; and the seedbed is not easy to ventilate, resulting in weak growth of the seedlings. To this end, the plant protection station expert group recommends: seed and seedbed soil disinfection, use 40% of the high-tech 38% cream, such as pyromycetin or high-tech carbendazim, nail cream, 30ml evenly spray or 50% per square meter 1.5 grams of fungus sprinkled on the surface into the soil, the pesticide manufacturer recommended that 7 grams of 75% pentachloronitrobenzene have a good effect, and can cure both rickets and blight. In the onset of disease, 38% of the cream of pyrimethanil 800 times or the high-tech carbendazim, methyl carbaryl 800 times liquid spray or water the diseased plants; at the same time to control the harm of underground pests and nematodes.

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