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党的十一届三中全会以来,我县在土壤普查成果应用和化肥试验网工作的基础上,在省农业技术推广总站和配方施肥协作组的大力支持下,认真开展了配方施肥的试验、示范和推广。我们主要依据历年肥料试验结果,针对氮磷比例失调,作物对氮磷元素的要求,并结合高海拔地区的生态条件,提出了较为合理的氮磷比例,施用方法、施用时期、施用数量。
Since the Third Plenary Session of the 11th CPC Central Committee, based on the application of soil census results and the experiment of fertilizers, our county, with the strong support from the Provincial Agricultural Technology Extension Station and the Formula Fertilization Cooperative Group, has seriously carried out the experiment of formula fertilization, Demonstration and promotion. Based on the results of fertilizer experiments over the years, we put forward reasonable nitrogen and phosphorus ratios, application methods, application periods and application quantities in response to the imbalance of nitrogen and phosphorus, the requirements of crops for nitrogen and phosphorus, and the ecological conditions at high altitudes.