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为探索液氨在我区土壤、气候和栽培等具体条件下,对主要作物的肥效,适宜的施用量及其施肥的经济效益,为我区应用和推广液氨直接施肥提供依据,1983年我们根据一师安排,进行了该项试验工作。 一、试验条件和方法: 1.试验地概况:试验地土壤为壤质林灌草甸土;前作水稻,单产1,000斤以上,肥力中等。N:P_2O_5在5.6～10.7:1,磷素缺乏。土壤主要养分含量列表(1)。
In order to explore the liquid ammonia fertilizer in my area soil, climate and cultivation and other specific conditions, the main crops of the fertilizer efficiency, the appropriate application rate and the economic benefits of fertilization for our region to promote the application and promotion of liquid ammonia to provide direct basis for fertilizer in 1983, we According to a division arrangement, carried out the pilot work. First, the test conditions and methods: 1. Test to the general situation: the soil test for the soil forest irrigation meadow soil; before rice, yield more than 1,000 pounds, moderate fertility. N: P_2O_5 is 5.6 ~ 10.7: 1, phosphorus deficiency. Soil main nutrient content list (1).