论文部分内容阅读
春玉米是内蒙古自治区呼伦贝尔盟岭南旱作丘陵区的重要粮食作物。施肥不足,氮、磷配比不合理是该地区玉米低产的重要影响因素。1987～1989年在该地区的中部阿荣旗25个试验点上进行了测土配方施肥的研究,经统计分析,提出了不同土壤肥力条件下氮,磷效应函数;并根据碱解氮、速效磷的土测值确定最佳施肥量的推荐,为岭南旱作丘陵区春玉米丰产栽培提供了施肥依据。
Spring maize is an important grain crop in the hilly area of southern Hulun Buir League in Inner Mongolia Autonomous Region. Inadequate fertilization and unreasonable nitrogen and phosphorus ratio are the important factors affecting the low yield of maize in this region. From 1987 to 1989, soil testing and fertilization were carried out on 25 test sites in Arong Banner in the central part of the region. According to the statistical analysis, nitrogen and phosphorus effect functions under different soil fertility conditions were put forward. According to the available nitrogen, available phosphorus Soil testing to determine the best amount of fertilizer recommended for the hilly area of Lingnan dryland spring maize yield fertilization provided basis.