通过对旱地春玉米3500、4000、4500苗/亩三种不同种植密度,15、20、25公斤/亩三种不同氮肥用量试验,获得577.3公斤/亩干玉米粒产量。初步认为在广西中等肥力的旱地土壤上,采用“鲁玉二号”品种,育苗定向移栽,每亩种植4000—4500苗,施N25公斤、P_2O_510公斤、K_2O18公斤,能显著提高玉米单产。 The yield of 577.3 kg / mu dry maize was obtained through three different planting densities of 3500, 4000 and 4500 mu / mu in dry land and three different nitrogen application rates of 15, 20 and 25 kg / mu. It is preliminarily believed that using “Luyu No.2” variety in medium-fertile dryland soil of Guangxi, seedlings are planted transplanted with 4000-4500 seedlings per acre, with N25 kg, P2O510 kg and K2O18 kg, which can significantly increase corn yield.