This paper studies the effect of nitrogen and phosphorus fertilizer on yield and forage quality of sequentialcropping silage maize.
研究了不同氮磷肥处理对复播青贮玉米产量及其饲用品质的影响。
2
The result showed, comparing with sole cropping, the land use efficiency of sequentialcropping, row cropping, crop rotation raised by 62%, 38% and 21%.
结果表明，与单作一熟农田相比，复种、间作及轮作农田土地利用效率分别提高62%、38%和21%；
3
The variation of nutrient in soil of sequentialcropping peanut and the response of such soil to organic and chemical fertilizers were investigated through pot culture.