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在较高的土壤肥力下测定桂三2号玉米表明:氮的吸收出现12—13展叶、乳熟至蜡熟两个吸收高峰,磷、钾最大吸收期在12—15展叶;抽雄吐丝后N、P_2O_5主要分配在籽粒中,而K_2O在籽粒中的分配量很少;N、P_2O_5、K_2O的转移率分别为48.62％、69.77％、26.11%;每100公斤籽粒吸N 2.73公斤、P_2O_6 0.89公斤、K_2O 2.00公斤。施肥应注重种肥,6—13展叶重施攻秆、攻苞肥,同时防止后期脱氮。
Under the condition of higher soil fertility, Guisan No.2 maize showed that the absorption of nitrogen appeared 12-13 leaves and milk ripening to wax ripening, and the maximum absorption period of phosphorus and potassium was 12-15 leaves; P_2O_5 and N_2O_5 were mainly distributed in kernels, while K_2O was less distributed in kernels; the transfer rates of N, P_2O_5 and K_2O were 48.62%, 69.77% and 26.11% respectively; N 2.73 kg and P_2O_6 0.89 kg, K_2O 2.00 kg. Fertilization should focus on the kinds of fertilizer, 6-13 Zhanshu re-attack stalk, attack Bao fertilizer, while preventing post-denitrification.