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研究表明 ,农田人工辅助能投入有一个合理的投能区域 ,在该区域内增加水肥投能可增加总产出能和产投比 .总产出能的合理投能区域大于产投比的合理投能区域 ;低产农田的合理投能区域大于高产农田 ,通过人工辅助能的增加 ,可使低产农田与高产农田一样达到作物的最高产量水平 .在合理投能区域内存在水分投入高效线和肥料投入高效线 ,在两条线上相应的水分和肥料投入效益最高 ;也存在最优投能配比线和最优经济投入配比线 ,在两条线上的水肥投入 ,其能量产投比和经济产投比最高 ,是水肥投入的最优值 .农业资源投入可以通过资源代换达到等同产出 ,但将会降低产投效益
The research shows that artificial agricultural aids can be put into a reasonable energy-using area, increasing the fertilization of water and fertilizer in this area can increase the total output and output-to-output ratio.The reasonable output area of total output energy is more than the reasonable output-to-output ratio Low-yielding farmland is more than the high-yielding farmland, and the increase of artificial auxiliary energy can make the low-yield farmland reach the highest yield level of crops as well as high-yield farmland.Within the reasonable cast-in area, Put into efficient lines, in the two lines corresponding to the highest water and fertilizer investment efficiency; there is also the best investment allocation ratio and the optimal economic input ratio, the two lines of water and fertilizer inputs, the energy production and investment The ratio of output to economic output is the highest, which is the optimal value of water and fertilizer input.Agricultural resources input can achieve equivalent output through resource substitution, but it will reduce production investment benefit