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施用磷肥是农业生产上一项重要增产措施,但磷肥利用率的高低往往受土壤特性、磷在土壤中的变化和不同施肥方法的影响,目前,生产上虽已大量施磷,但一些社队尚未很好掌握施用技术,致使肥效降低。为了提高磷肥利用率,我们于1977年10月至78年6月进行了磷肥施用方法试验。现将结果报告于后:一、试验经过及方法:采用盆栽试验,指示作物小麦,品种为郑引一号。供试土壤采自武功杨陵公社陈小寨大队,肥力较低,施磷肥反应敏感。据分析全氮含量0.0913%、
Application of P fertilizer is an important production increase in agricultural production. However, the utilization of P fertilizer is often affected by soil characteristics, changes in phosphorus in the soil and different fertilization methods. At present, although a large amount of P has been produced in production, Not yet a good grasp of the application of technology, resulting in reduced fertilizer efficiency. In order to improve the utilization of phosphate fertilizer, we carried out the method of applying phosphate fertilizer test from October 1977 to June 78. Now the results reported in the later: First, the test after and methods: the use of potted plants, indicating that the crop of wheat varieties Zheng cited. The test soil was collected from Chen Xiaozhai Brigade of Wugong Yangling Commune, with low fertility and sensitive application of phosphate fertilizer. According to the analysis of total nitrogen content of 0.0913%