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近年来,本省微肥施用面积发展很快。1983年全省为200多万亩,84年超过300万亩,在农业增产中起了很好的作用。为了进一步提高微肥的经济效益,并为微肥区划提供依据,现对本省微肥发展的条件与前景作如下初步分析。一、分析微肥前景的依据1.微肥的增产效益。本省自五十年代中期开始研究微肥,七十年代中期由小区至大田,积累了许多资料。据近年本所、省土肥所、西北农学院及有关地县农科所的试验结果,锌、硼肥增产效果突出,锰肥有较好效果,钼、
In recent years, the province’s development of fertilizer application area developed rapidly. In 1983, the province had more than 2 million mu and over 300 million mu in 84 years, playing a very good role in increasing agricultural output. In order to further improve the economic benefits of fertilizer, micronutrient zoning and provide the basis for the development of this province are now fertilizer conditions and prospects for the following preliminary analysis. First, the basis for the analysis of the future of fertilizer 1. Fertilizer production efficiency. Since the mid-1950s, the province began to study the use of trace fertilizers and accumulated a great deal of information from the area to the field in the mid-1970s. According to the results of the tests conducted by the institute, the Institute of Soil and Fertilizer, the Northwest Agricultural College and the related county agricultural institutes in recent years, the zinc and boron fertilizers have a remarkable yield increasing effect and the manganese fertilizer has good effects. The molybdenum,