论文部分内容阅读
除草专用肥是根据作物生长的需肥规律和土壤的供肥能力及田间杂草草相发生的特点,将平衡施肥技术与化学除草技术有机结合,通过特定的工艺精制加工而成的颗粒状除草型肥料。农民一次田间作业,能收到施肥和除草的双重效果。我国除草肥料研究工作从80年代前后开始。如黑龙江省将2、4-D除草剂与尿素或过磷酸钙混用,发现有明显的增效和增产作用,特别是过磷酸钙在提高药效和增产作用上最为显著,但未能研制成稳定的产品。浙江、宁夏两省研制的除草尿素,采用包衣法将除草剂包裹在尿素颗粒外表,发现除草
Weeding special fertilizer is based on the law of crop growth and fertilizer supply for the soil and grass weed facies occurred in the characteristics of the balanced fertilization technology and chemical weeding technology organic combination of refined through a specific process of processing of granular weeding Fertilizer. Once a farm worker in the field can receive the dual effects of fertilizing and weeding. Herbal fertilizers research work from around the 1980s. For example, 2,4-D herbicide mixed with urea or superphosphate in Heilongjiang Province has obvious synergism and stimulation effects, especially the superphosphate is the most significant in improving the efficacy and increasing the yield, but it has not been developed Stable product. Zhejiang, Ningxia developed weed control urea, the coating method will be coated with herbicides in the appearance of urea particles and found that weeding