桓台县麦玉两熟系统化肥投入及土壤养分资源研究 关键词 麦玉两熟系统 化肥投入 土壤养分资源 [gap=1253]Key words Winter wheat—corn rotation system，Fertilizer input，So~l nutrient resources
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The main factors that impact agriculture and economic growth are: the level of fertilizer input,the amount of farming total area,and the amount of agricultural labor. The elasticity of fertilizer input level to total agricultural output value was 1.8.
化肥施用量对我国农业总产值的弹性系数为1.8;耕种总面积对我国种植业总产值的弹性系数为4.29。
参考来源 - 我国种植业经济增长的实证分析·2,447,543篇论文数据，部分数据来源于NoteExpress
Fertilizer input for this heavy burden on the population and the economy of less developed countries is particularly important.
化肥投入对于我们这个人口负担重，而经济又欠发达的国家来说尤为重要。
The sustainability index indicated that, the sustainability of soil N was much more dependent on chemical fertilizer input, while P and K were relied on organic fertilizer.
之间；通过可持续性指数的分析得出，土壤N素养分的可持续性对化肥的依赖性较大，而P、K养分的可持续性则对有机肥的依赖性更高。
Previous researchers through conventional field observation methods had proved that to increase fertilizer input was the key measure to enhance soil carbon sequestration and crop yield-increasing.
前人通过实地观测的常规方法，证明了增加肥料投入是土壤增汇、粮食增产的关键措施。
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