施肥处理对玉米生育期生理性状及产量的影响

Effects of Fertilization Treatments on Physiological Characters and Yield of Maize in Growing Period

以联创808为试验材料,对比分析了小麦季2种不同播种技术条件下,玉米季施加NPK复合肥及NPK缓释肥+生物菌肥2种施肥处理对玉米生育期生理状况、农艺性状及产量的影响。结果表明,玉米出苗拔节期、抽雄吐丝期、籽粒灌浆期,3个生育时期玉米叶片叶绿素含量均为施加NPK复合肥处理高于施加NPK缓释肥+生物菌肥处理,而根系活力则是施加NPK缓释肥+生物菌肥处理高于施加NPK复合肥处理;施加NPK复合肥的玉米地上部分的株高、单株绿叶数都高于施加NPK缓释肥+生物菌肥的玉米,而地下部分的侧根数、根长却是施加NPK缓释肥+生物菌肥处理大于施加NPK复合肥处理,相对于干物质积累量,3个生育时期,2个肥料处理均出现施加NPK复合肥的干物质累积量较多,且出苗拔节期到抽雄吐丝期玉米干物质累积量增长率大于玉米抽穗吐丝期到籽粒灌浆期;玉米成熟收获后,施加NPK复合肥处理的籽粒产量高于施加NPK缓释肥+生物菌肥处理。

Lianchuang 808,the variety of maize was applied to compare and analyze the effects of two fertilizer treatments in maize season of applying NPK compound fertilizer and NPK slew-release fertilizer＋biological fertilizer on agronomic traits and yield of maize,the physiological condition under the condition of two kinds of different sowing techniques in wheat season.The results showed that the three development stages of maize were seedling jointing,tasseling silking and grain filling period,the leaf chlorophyll content of applying NPK compound fertilizer was higher than applying NPK slow-release fertilizer＋biological fertilizer,but the root activity of applying NPK slow-release fertilizer＋biological fertilizer was higher than applying NPK compound fertilizer.Applying NPK compound fertilizer of the aerial parts of the maize plant height,leaf number per was above applying NPK compound fertilizer maize,and the underground part of lateral root number,root length was applying NPK slew-release fertilizer＋bio-bacterial manure above applying NPK compound fertilizer,compared with the dry matter accumulation,accumulation of dry matter of applying NPK compound fertilizer was more in three periods,compared to the ground part of the plant height and stem diameter growth condition,learned that dry matter accumulation growth rate was corn elonggation stage to tasseling stage fast than tasseling stage to grain filling stage.Maize grain yield after harvest,applying NPK compound fertilizer was higher than that of applying NPK slew-release fertilizer＋biological fertilizer.