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根据省内、外的研究以及一九八一年我区顺昌、浦城、光泽等县的实验结果表明,应用土壤普查化验数据,制订测土定产施肥方案,实行以田定产,以产定肥的办法,可达到计划用肥,经济用肥,实现粮食高产、稳产、低成本的目的。一九八一年光泽县测土、施肥的平均每亩比一九八○年一般施肥的增产81.5斤,肥料成本下降2.38元。一、测土施肥的意义:1.测土施肥是定期对土壤和植株进行普查诊断,将测定的数据,用数学方法,估算出较为合理的施肥方案;并根据这一方案进行科学施肥。这是把作物生长和养分供应放在定量基础上的尝试。虽然这个估算方法有不尽完善之处;但这是对作物施肥从定性走向定量的可喜步骤。这个方向是可取的。无论国内外,都在向这方面努力。
According to the research inside and outside the province and the experimental results in Shunchang, Pucheng and Guangze counties in 1981, it is indicated that the application of the soil survey laboratory data to formulate the soil testing and fertilizer program, The method of fixing fertilizer can achieve the purpose of using fertilizer and economic fertilizer to achieve high yield, stable yield and low cost of grain. In 1981, the average yield per mu of soil and soil fertilization in Guangze County was 81.5 kg more than that of normal fertilization in 1980, and the cost of fertilizer dropped by 2.38 yuan. First, the significance of soil testing and fertilization: 1. Soil testing and fertilization is a regular survey of soil and plant census, the measured data, using mathematical methods to estimate a more reasonable fertilization program; and according to this program for scientific fertilization. This is an attempt to put crop growth and nutrient supply on a quantitative basis. Although this method of estimation has not been perfect, it is a welcome step towards quantitative fertilization of crops from qualitative to quantitative. This direction is desirable. Efforts are made in this regard, both at home and abroad.