【摘要】 通过固定 N、P肥适宜用量 ,设置钾肥不同施用量处理试验研究 ,结果表明 ,增施钾肥 ,能够显著增加“两优培特”杂交水稻的有效穗、每穗总粒数、实粒数。其中以处理 N12 P2 O56 K2 O9产投比最大 ,可作为信阳市水稻土上种植“两优培特”杂交水稻钾肥的最佳施用量更多还原

【Abstract】 Pass regular N?P suitable quantity set up potassium deal with amount of application experiment study, result indicate construct potassium more, can increase "Liangyoupeite" affective ear of grain of hybrid rice, every ear of grain always one is counted, real one is counted notably. Among them with deal with N12 P 2O 56 K 2O9 produce and throw and make a gesture of mesuring most heavy, plant as city of Xinyang rice soil "Liangyoupeite" hybrid rice best recommendation quatity of potassium.更多还原