The second part of autumn grain science and technology disaster-resistance technology: Remedial measures for post-disaster fertilization
After the floods and floods, we must focus on the growth of autumn grain crops, classify and guide farmers in scientific fertilization, promote robust crop growth, and enhance crop resilience. Post-disaster remediation measures for autumn grain in the north The first is rice. For the lush vegetation with green leaves, 0.2%~0.5% potassium dihydrogen phosphate should be sprayed on the foliage to increase the plant's resistance to stress. For fields with weaker growth, yellow-green leaves, and signs of lack of fertilizer, 5 to 7 kg of urea is topdressed, and foliar fertilizers such as potassium dihydrogen phosphate or organic water-soluble fertilizers are regularly sprayed. The second is dry land crops such as corn and soybeans. Normally affected land does not need to be fertilized. Under special circumstances, such as land that is heavily polluted, corn can be supplemented with 5 kg of urea per acre due to the loss of nutrients, preventing insufficient supply of nutrients in the later period. Soybeans are supplemented with phosphorus and potassium fertilizers and sprayed with foliar fertilizers such as potassium dihydrogen phosphate or organic water-soluble fertilizers. Fertilizer remediation measures after the late rice disaster in the South The first is to regulate the amount, structure and proportion of fertilizer used in late rice. Increase the amount of fertilizer, part of the panicle fertilizer advance to the tiller stage, promote early growth, prevent early panicles, and strive for sufficient effective panicles, appropriate increase the proportion of potash fertilizer, improve seed setting rate and grain plumpness. On the basis of the total amount of fertilization originally planned, the late rice was added with a formula fertilizer of about 10 kg per acre (N:P:K=20:10:15) before the peak of tillering. The second is spraying foliar fertilizer. From the start of booting stage to heading flowering stage, spraying 100 grams of potassium dihydrogen phosphate (concentration diluted with water to 0.2%) per acre for 7 days or foliar fertilizers such as organic water-soluble fertilizers containing trace elements of boron, and spraying twice, To promote pollen germination. Foliar spraying time is best carried out in the windless evening and cloudy days to facilitate crop absorption. Do not spray on rainy days, high winds, or on sunny days in sunny days and when rice blooms. Spice Novelties Co.,Limited , https://www.wholesale-adult-toys.cn