摘要
黔西县玉米平衡施肥试验结果表明 ,在黔西县玉米的最优施肥方案为 :每 6 6 7m2 N肥施用量为12 .6 7～ 18.4 6 kg,P肥为 2 .6 8～ 3.4 1kg,K肥为 6 .35～ 6 .98kg,N∶ P∶ K=1∶ 0 .2 1∶ 0 .4 5 ,且对于不同肥力水平的土壤要对施肥方案的 N、P肥进行适当调整 ,下等肥力的土壤要多施 N少施 P,上等肥力的土壤要少施N多施 P。
The experimental results of recommendation fertilization of corn indicated that an optimal option of applying fertilizer to corn was N12.67~18.46kg, P2.68~3.41kg, K6.35~6.98kg per 667m 2 and ratio of N∶P∶K was 1∶0.21∶0.45. It is essential to adjust fertilization rate according to soil fertility level . The higher fertility soil requires more P and less N, the lower fertility soil needs more N and less P.
出处
《贵州农业科学》
CAS
2003年第1期21-24,共4页
Guizhou Agricultural Sciences
基金
20 0 0~ 2 0 0 1年度国家旱作农业示范建设项目
关键词
黔西县
玉米
平衡施肥
试验
corn
recommendation fertilization
Qianxi county
