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肥料长期定位试验早就受到国外的高度重视。我国从七十年代以来,在全国化肥网中开展了长期肥料定位研究,在肥料对地力的影响、作物对肥料的反应,以及定量施肥、肥料配合上都取得了一些初步结果。我们从1979年初开始进行这项试验,主要想解决以下问题: 1.长期施用化肥是否会破坏地力引起产量下降? 2.如何提高土壤有机质,高产条件下的地方潮土有机质多少为最适宜? 3.土壤中主要养分演变规律及调控措施。 4.作物高产条件下的定量施肥与肥料
Fertilizer long-term positioning test has long been highly valued by foreign countries. Since the 1970s, China has carried out long-term fertilizer positioning research in the national fertilizer network. Some preliminary results have been obtained on the effects of fertilizers on the soil fertility, the response of crops to fertilizers, and on the quantitative fertilization and fertilizer mix. We started this experiment from the beginning of 1979, mainly to solve the following problems: 1. Will long-term application of chemical fertilizers destroy soil fertility and reduce production? 2. How to improve soil organic matter? Main Nutrient Evolution and Control Measures in Soil. 4. Crops under high-yielding conditions of fertilization and fertilizers