【摘要】 为确定闽东南稻稻薯三熟制中马铃薯氮钾肥适宜施用量,在龙海市设置氮钾肥水平试验。结果明确,马铃薯产量与氮钾肥施用量呈抛物线型相关,目标产量2500kg/667m2的氮、钾肥经济施用量分别为16kg/667m2和13.4kg/667m2,氮钾比1∶0.84。更多还原

【Abstract】 To determine suitable application of nitrogen and potassium fertilizer in potato for the Rice-Rice-Potato triple cropping system in Southeast Fujian, the experiment of nitrogen and potassium levels was conducted in Longhai. The results showed that there was a parabola relationship between potato yield and the application rate of N, K fertilizer. The economic application amount of N and P fertilizer for potato were 16kg and 13.4kg as the target yield of 2500kg per 667m 2 , and the ratio of N to K was 1:0.84.更多还原