土壤耕作与施肥配合对玉米根系微观结构及产量的影响

张韶昀,李向岭,刘盼,张悦,翟大帅,尹宝重

Effects of Soil Tillage and Fertilization on Root Microstructure and Yield in Maize

Shaoyun Zhang,Xiangling Li,Pan Liu,Yue Zhang,Dashuai Zhai,Baozhong Yin

图1 不同时期夏玉米根系微观结构（中柱） A．免耕播种,B．深松一体化施肥,C．深松分层施肥（上层施普通氮肥）,D．深松分层施肥(上层施缓释氮肥）;0．苗期,1．拔节期,2．抽雄期,3．灌浆期;a．导管,b．髓腔,c．中柱

Fig.1 Root microstructure (stele) of summer maize at different stages A. No-tillage seeding, B. Subsoiling and applying fertilizer, C. Subsoiling and layer fertilizer (N fertilizer on the upper layer), D. Subsoiling and layer fertilizer (slow-controlled release in N fertilizer on the upper layer); 0. Seedling stage, 1. Jointing stage, 2. Tasseling stage, 3. Filling stage; a. Vessel, b. Pulp cavity, c. Stele