不同肥料配方一次性施肥对玉米产量和养分吸收的影响  

Effects of Basal Dressing Total Fertilizers Once with Different Fertilizer Formulas on Product and Nutrient Uptake of Maize

作　　者：安景文[1] 汪仁[1] 包红静[1] 解占军[1] 华丽民[1] 

机构地区：[1]辽宁省农科院环境资源与农村能源研究所,辽宁沈阳110161

出　　处：《土壤通报》2008年第4期874-877,共4页Chinese Journal of Soil Science

基　　金：科技部"十一五"科技支撑计划项目"东北平原南部(辽宁)春玉米丰产高产技术集成研究与示范"(2006BAD02A12)资助

摘　　要：应用不同肥料配方对玉米进行一次性深施肥试验,结果表明:等养分条件下一次性深施肥有助于玉米对养分的吸收;施用包膜尿素、增施钾肥和一次性深施肥能提高氮肥利用率;一次性深施肥与常规施肥相比,等养分条件下可以明显提高单位面积的经济效益;包膜尿素虽然能提高氮肥利用率,但由于成本过高,增产效果不大,影响单位面积的经济效益。The experiments of basal dressing total fertilizers once with different fertilizer formulas were carried out on maize. The results indicated： For the same amount of the nutrients, basal dressing total fertilizers once was beneficial to nutrient uptake of maize. It could enhance the N utilization efficiency by applying coated urea, increasing potash fertilizer and basal dressing total fertilizers once. Compared with common fertilizer application technique, for the same amount of the nutrients, basal dressing total fertilizers once could obviously increase the economic benefits. Although applying coated urea could improve the N utilization efficiency, higher cost and less yield gain could affect the economic benefits.

关 键 词：玉米 一次性施肥 包膜尿素 肥料配方 

分 类 号：S147.2[农业科学—肥料学]