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小麦施用磷肥的问题,已进行了多年的试验研究.现将我们和各地所做小麦施磷肥的研究结果加以汇总和分析整理,以便为今后小麦合理施用磷肥提供科学依据.一、磷肥的增产效果:根据1978-1981年在褐土、黄褐土、潮土、砂姜黑土上的75次试验结果(表1),在一定量氮肥的基础上,亩施80-100斤磷肥(过磷酸钙或钙镁磷肥)作底肥,小麦获得了良好增产效果.亩产小麦228斤的低产田,45次施磷处理,平
Wheat phosphate fertilizer application, has been carried out for many years of experimental research.We now and around the wheat phosphate fertilizer results to be summarized and analyzed in order to provide a scientific basis for the future rational use of phosphate fertilizer.First, the yield of phosphate fertilizer : According to the results of 75 experiments (Table 1) on cinnamon soil, yellow cinnamon soil, alluvial soil and sago lime black soil from 1978 to 1981, on the basis of a certain amount of nitrogen fertilizer, 80-100 kg of phosphate fertilizer (superphosphate Or calcium magnesium phosphate fertilizer) as a base fertilizer, wheat yield has been a good yield increase of 228 kg per mu yield of wheat field, 45 times phosphorus treatment, flat