What about spring peanut rot?
Symptoms of spring peanuts after sowing before emergence, often occur rotten seeds, serious as high as 10% to 20%, resulting in varying degrees of lack of seedlings and broken ridges. Causes of poor seed quality or improper storage, or storage period is too long; geothermal low-lying, soil viscosity, poor texture, high soil water content, long emergence time, unsolid soil preparation, affecting seed water absorption, weak seedlings; seeds are not selected, uneven size, sowing is not fine or different depth, resulting in uneven emergence or lack of seedling broken ridges; continuous cropping for many years, serious diseases in the seedling stage, resulting in lack of seedlings and broken ridges The application of undermature organic fertilizer or the concentration of fertilizer is too high, resulting in fertilizer damage or long duration of low temperature, resulting in slow germination and rotten seeds. Fine seed selection of control methods, selection of new peanut seeds, timely harvest and timely drying of peanut seeds to achieve scientific storage, drying seeds with skin before sowing to speed up peanut metabolism, enhance seed permeability and improve seed water absorption. Peeling 1-3 days before sowing, select seeds without damage and radicle not sprouting. Seed dressing before sowing, seed dressing with 0.1% methyl carbendazim or 50% carbendazim wettable powder to prevent seedling diseases, and 50% phoxim milk 0.2% seed weight can also be mixed to control underground pests and bird and rodent pests. Fine sowing, sowing depth 4cm to avoid contact with fertilizer. By using the technology of plastic film mulching, the ground temperature is increased by 2 ℃ ~ 3 ℃, and the seeds germinate and emerge quickly after sowing, which can reduce the disease. Scientific irrigation to avoid flooding.
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It is very important to skillfully apply "four fertilizers" to spring peanuts.
The plastic film mulching cultivation of spring peanut has the advantages of heat preservation, moisturizing, fertilizer preservation, improving the soil environment, ensuring that the seedlings are uniform and strong, promoting early maturity and increasing production and income, usually increasing production by 20%, 30%, and net income by 50%, 100 yuan per mu. First, fine soil preparation, full-layer fertilization peanut cover.
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Reasonable close planting of spring peanut
For high yield of spring peanut, six technical links must be mastered: 1. Select excellent varieties. Improved varieties are the basis for high yield, and varieties with strong resistance, high yield and high oil should be used first. In recent years, experiments have shown that Shanyou 523, Shanyou 71, Yueyou 79, Guihua 21, Wuyou 7 and other "three high" varieties. When planting, also.
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