【摘要】 两年花生钾肥试验结果表明,在氮、磷一定水平上,增施钾肥可促进地上部干物质积累和生殖器官的发育,改善花生的经济性状,提高荚果产量和经济效益。当施钾量为180kg/hm2时,花生荚果产量最高达4260.5kg/hm2,利润最大为9482.0元/hm2,产投比达到9.1∶1。当施钾量增加到270kg/hm2以上,花生产量和效益呈明显下降趋势。更多还原

【Abstract】 Two-year experiment results showed that suitable K application promoted growth of peanut and increased dry matter accumulation, improved economic characters, increased pod yield and economic benefit under certain N and P level. When K was applied to 180 kg/ha, pod yield reached up to 4260.5 kg/ha, the best net profit reached up to 9482 yuan/ha, Output/input ratio reached 9.1∶1. When K was applied to more than 270 kg/ha, the peanut yield and its economic benefit were found to decrease.更多还原