不同施肥方式对玉米生长及产量的影响

Effects of Different Fertilization Methods on Growth and Yield of Maize

研究以玉米品种宁玉218为材料,设3个施肥处理,比较不同施肥方式对玉米产量及生长发育的影响。结果表明,深施肥处理较表面撒施和沟施肥处理,植株大喇叭口至成熟期绿叶面积、吐丝后植株茎粗和干物质积累均明显增加;与表面撒施肥料处理相比,深施肥25 cm、沟施8 cm处理分别增产17.6%,8.0%,玉米收获后穗部性状中穗长、穗行数和行粒数均表现随施肥深度增加而显著增加,穗粗、秃尖长和百粒质量变化较小。

Ningyu 218 was used to study the effect of different fertilization methods on maize yield, growth and development. Theresults showed that the total green leaf area from flare opening to maturity, the stem diameter and the whole plant dry matter after thetasseling stage were better promoted under the treatment of deep fertilization application 25 cm up to the ground. Compared with fertilizersurface spraying, the maize yield in the deep fertilization application 25 cm up to the ground and the furrow fertilization 8 cm up to theground was improved by 17.6%, 8.0%, respectively. The higher grain yield was mainly ascribed to the higher value in ear length, the rownumber and grain number per ear under the different fertilization treatments, while the bald tip length, ear diameter and the 100 grainquality showed a small change.