一、目标产量怎样确定目标产量就是计划产量,是肥料定量的最原始依据。目标产量并不是按照经验估计,或者把其他地区已达到的绝对高产作为本地区的目标产量,而是由土壤肥力水平来确定。作物产量对土壤肥力依赖率的试验中,把土壤肥力的综合指标X(空白田产量)和施肥可以获 First, the target output How to determine the target output is the planned output, is the most original basis for fertilizer quantification. The target output is not empirically estimated, or the absolute output that has been achieved in other regions is used as the target production in the region, but rather the level of soil fertility. In a test of crop yield dependence on soil fertility, a comprehensive index of soil fertility X (open field yield) and fertilization could be obtained