华北农学报Issue(4)：110-114,5.
旱地秸秆还田对小麦花后光合特性及产量的影响
Effects of Dryland with Straw Return on Photosynthetic Characteristics and Yield of Wheat after Flowering Stage
摘要
Abstract
The photosynthetic rate , stomata conductance , intercellular CO 2 concentration , yield and some other photosynthetic characteristics were studied under five treatments of winter wheat in dryland .The five treatments are rotary tillage without straw return(CK),rotary tillage with straw(RS),no-tillage with straw(NS),subsoil tillage with straw(SS),deep plowing tillage with straw(DS).The result showed that all the photosynthetic characteristics in flag leaf of tillage with straw return was greater than the tillage without straw return ,this is due to the different soil moisture condition under tillage with straw return .The photosynthetic characteristics of tillage with straw return showed as SS>NS>DS>RS,tillage with straw return in particularly slowing down the degradation of chlorophyll at later grain filling stage .Tillage with straw return reduced the emergence rate and spike number ,emergence rate of SS and NS reduced 21.25%and 16.5%compared with CK treatment .The yield,1000-grain weight and Grains per spike of SS were much higher than the other treatments because of the higher photosynthetic rate .Integrated results of this trial ,the SS treatment was recommended in dryland .关键词
秸秆还田/小麦/光合/产量Key words
Straw return/Wheat/Photosynthesis/Yield分类
农业科技引用本文复制引用
刘义国,林琪,房清龙..旱地秸秆还田对小麦花后光合特性及产量的影响[J].华北农学报,2013,(4):110-114,5.基金项目
作物栽培学与育种学泰山学者岗位经费项目；国家粮食丰产科技工程项目 （）
