【摘要】 获得棉花最佳施肥量、施肥比例、施肥时期、施肥方法,筛选、验证土壤养分测试技术,建立施肥指标体系。摸清土壤养分校正系数、土壤供肥能力、棉花养分吸收量和肥料利用率等基本参数;构建棉花施肥模型,为施肥分区和肥料配方提供依据。更多还原

【Abstract】 Summary for the best cotton fertilizer,fertilization ratio,fertilization period,fertilizer application,screening,verification of soil nutrient testing technology,the establishment of fertilizer index system.Find out the correction factor of soil nutrients,soil capability for fertilizer,cotton,fertilizer,nutrient uptake and utilization of the basic parameters;build cotton fertilization model for fertilizer and fertilizer formulations provide the basis for partition更多还原