| 摘要: |
| 在豫西褐土区研究了钾、锰配施对旱地冬小麦的增产效应。结果表明：钾、锰配施对旱地冬小麦有显著的增产效应，增产幅度为6.9%～25.4%；施用0～112.5 kg/hm2 K2O和质量分数为0～0.3%的MnSO4，小麦穗数、穗粒数、千粒重和产量均随钾、锰肥施用量的增加而增加；钾、锰肥的合理施用量为每公倾施肥（K2O)75 kg，同时配合叶面喷施质量分数为0.2%～0.3%的锰肥（分拔节期和灌浆初期2次喷施，每次喷施液为750 kg/hm2)。 |
| 关键词: 褐土 钾锰配施 冬小麦 培产效应 叶面喷施 |
| DOI： |
| 分类号: |
| 基金项目:河南省科学技术厅科技攻关项目(0124020121) |
|
| Study on yield-increasing effect of potassium and manganese fertilizers cooperating application on winter wheat in Dryland |
|
|
| Abstract: |
| Yield-increasing efflect of potassium (K) and manganese (Mn) fertilizers cooperating application on winter wheat in dryland at the cinnamon soil area in western Henan Province was studied.The results showed:(1) with the K and Mn-fertilizers cooperating application on arid winter wheat,there was a significant effect of yield-increasing on winter wheat,which ranged from 6.9% to 25.4%.(2) the ears per hectare,grains per ear,weight per 1000 grain,and the yield per hectare were increased with the increasing K and Mn-fertilizers cooperating application in the ranges of 0-112.5 kg/hm2 K2O and 0-0.3% (mass ratio) MnSO4.(3) the reasonable rate of K-fertilizer (K2O) application is 75 kg/hm2 and that of foliage dressing of Mn-fertilizer ranges from 0.2%-0.3%. |
| Key words: cinnamon soil potassium and manganese fertilizers cooperating application winter wheat yield increasing effect foliage dressing |
