摘要
在中上肥力的地块进行马铃薯3414肥料效应试验,结果表明:马铃薯的最佳施肥量为纯N 172.8 kg/hm2、P2O5108.0 kg/hm2、K2O 178.5 kg/hm2;最高产量施肥量为纯N 195.0 kg/hm2、P2O5 109.1 kg/hm2、K2O 181.7 kg/hm2。试验还证明,充足的氮素供应对促进马铃薯前期茎叶的健壮生长有重要作用;适当的钾素养分对块茎膨大有促进作用,能提高马铃薯的产量。
A potato＇s ＂3414＂ fertilizer effect experiment was conducted in middle and high fertility fields. The results show that the best fertilization amount for potato is pure N 172.8kg/hm^2,P2O5 108.0kg/hm^2,K20 178.5kg/hm^2,and the amount for highest yield is pure N 195.0kg/hm^2,P205 109.1kg/hm^2,K20 181.7kg/hm^2. This experiment has also proven that sufficient N supply can promote potato＇s growth in early peroids, rational K nutrient can boost its tuber enlargement and increase the crop＇ s yield.
出处
《广西农学报》
2009年第5期19-21,共3页
Journal of Guangxi Agriculture
基金
农业部测土配方施肥试点补贴项目
关键词
马铃薯
测土施肥
肥料效应
Potato
soil test for fertilization
fertilizer effect
