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目前经常谈到农作物最经济的收益问题。要得到高产,到底需要多少植物营养?磷、钾肥料研究所,通过多点研究和实验室分析,最近编制了多种产量水平的资料。回答上述问题是困难的,因为有多种因素影响作物对养分的吸收,这些因素包括品种或杂种;水分的有效性;温度;土壤类型;营养水平及其在土壤中的平衡程度;最大的作物群体;耕作措施;杂草和病虫害的防治;前茬作物;其他变化因素等等。
Often, the issue of the most economic benefits to crops is often addressed. To get high yields, exactly how much plant nutrition is needed? Phosphorus, Potassium Fertilizer Institute, through a number of research and laboratory analysis, recently compiled a variety of data on yield levels. It is difficult to answer the above questions because there are several factors that affect crop nutrient uptake, such as variety or hybrid; water availability; temperature; type of soil; level of nutrition and its balance in the soil; maximum crop Groups; Tillage practices; Weeds and pest and disease control; Crops up front; Other variables and more.