衡阳县有机肥在晚稻上的施用效果研究

Study on the Application Effect of Organic Fertilizer on Late Rice in Hengyang County

摘要: 有机肥是重要的农业生产资料，合理开发利用有机肥资源，实施有机无机配合施用，提高有机肥资源利用率，减少环境污染。近年来，国家大力提倡增施有机肥，开展绿色种养循环粪肥资源利用，改良土壤，提高耕地质量。本文通过开展晚稻的有机无机配施技术试验来研究有机肥对晚稻产量、施肥效应和耕地质量的影响。试验采用随机区组设计，5个处理3次重复，15个小区，试验设空白对照、常规施肥、优化施肥、15%有机肥替代化肥、30%有机肥替代化肥5个处理。试验结果表明：有机肥的施用能促进晚稻分蘖和开花结实，增加有效穗和实粒数，提高产量。施用有机肥能有效改善土壤的理化性状，提高耕地质量，提高肥料利用率，增强耕地的持续产出能力。

Abstract: Organic fertilizer is an important agricultural means of production. It is necessary to reasonably develop and utilize organic fertilizer resources, implement the combined application of organic fer-tilizer and inorganic fertilizer, improve the utilization rate of organic fertilizer resources, and reduce environmental pollution. In recent years, the country has vigorously promoted the application of organic fertilizers, carried out green cultivation and recycling of manure resources, improved soil, and improved the quality of cultivated land. In this paper, to study the effects of organic fertilizer on the yield, fertilization effect, and cultivated land quality of late rice through conducting experiments on the combination of organic and inorganic fertilizers. The experiment adopts a randomized block design, with 5 treatments repeated 3 times and 15 plots. The experiment includes 5 treatments: blank control, conventional fertilization, optimized fertilization, 15% organic fertilizer replacing fertilizer, and 30% organic fertilizer replacing fertilizer. The experimental results showed that the application of organic fertilizer can promote tillering, flowering and fruiting of late rice, increase the number of effective panicles and grains, and increase yield. Applying organic fertilizers can effectively improve the physical and chemical properties of soil, improve the quality of arable land, increase fertilizer utilization efficiency, and enhance the sustainable output capacity of arable land.