Abstract: Using pools in waterproof installxtion, set up two factor and three standard. The effects of water use efficiency and economic benefit in summer corn under different water use efficiency and economic benefit in summer corn under different water coordination fertilzer have been studied.The results show: the water use efficiencys under high fertilizer-low water, middle fertilizer-low water, low fertilizer-low water are lower; and economic benefit are no good; the water use efficiencys are higher under middle fertilizer-middle water, low fertilizer-middle water, it is the best coordination which reach steay yield and higher benefit; the water under efficency is the highest under high fertilizer-middle water, but the consume water coefficient is the lowest, it is the best coordination which obtaining high yield and saving water; the water use efficiency and the economic benefit are the best, the yield surpass 13 500 kg/ha, it is the best coordination that realizes superhigh yield in summer corn under high fertilizer-high water.

Key words: Summer corn, Water coordinating fertilizer, Yield, Water use efficiency, Economic benefit

CLC Number: 

• S513.07