Effects of fertilization on the growth, development and water use efficiency of spring millet
施肥对春谷子生长发育及水分利用效率的影响

The effects of different fertilization levels on the growth,development and water use efficiency of spring millet were studied in semihumid region.The results show that the height of individual,ears per hectare and 1000-grain weight of spring millet increase with the increase of fertilization amount within a certain range of fertilizer application.At the(same) time,fertilization induces the water amount in 2-meter soil layer decreasing,and its(decreasing)(range) is increasing(with) the fertilization amount increasing,and the water use efficiency of spring millet increases from 11.56% to 16.24%.When the amount of fertilization over a(threshold) value,the increasing of fertilizer results in the reduction of yield and(water) use efficiency of spring millet.