CAJ | 학술논문

为进一步探讨科学合理的水肥措施对玉米生产影响的理论基础，本试验设置了 W1（2250 m3／hm2）与 W2（4500 m3／hm2）两个灌水水平和不施肥（CK）、常规施肥（NF）、施控释肥（SF）与自配复混肥（MF）4个施肥水平，共8个处理，研究其对玉米叶片酶（SOD、POD、CAT）活性及逆境生理指标（Pro、MDA）的影响。结果表明：全生育期玉米叶片 SOD、CAT 活性趋势一致，多在吐丝期（个别处理在灌浆期）达到最高，随后急剧下降，POD 活性趋势与之相近，但后期降幅较缓；相同灌水水平下，施控释肥（SF）的 CAT、SOD 活性显著高于 NF（常规施肥）与 MF（自配复混肥），POD 活性受施肥影响不显著；游离脯氨酸（Pro）含量 W1水平下大喇叭口期最高，W2水平下吐丝期最高，受水分因子影响显著高于肥料。本试验中 W2灌溉水平下施用缓控释肥为玉米生产水肥调控最佳模式。
위진일보탐토과학합리적수비조시대옥미생산영향적이론기출，본시험설치료 W1（2250 m3／hm2）여 W2（4500 m3／hm2）량개관수수평화불시비（CK）、상규시비（NF）、시공석비（SF）여자배복혼비（MF）4개시비수평，공8개처리，연구기대옥미협편매（SOD、POD、CAT）활성급역경생리지표（Pro、MDA）적영향。결과표명：전생육기옥미협편 SOD、CAT 활성추세일치，다재토사기（개별처리재관장기）체도최고，수후급극하강，POD 활성추세여지상근，단후기강폭교완；상동관수수평하，시공석비（SF）적 CAT、SOD 활성현저고우 NF（상규시비）여 MF（자배복혼비），POD 활성수시비영향불현저；유리포안산（Pro）함량 W1수평하대나팔구기최고，W2수평하토사기최고，수수분인자영향현저고우비료。본시험중 W2관개수평하시용완공석비위옥미생산수비조공최가모식。
To further explore the theoretical basis of scientific and reasonable water and fertilizer meas-ures on maize production,2 irrigation levels,W1 (2 250 m3 /hm2 )and W2 (4 500 m3 /hm2 ),and 4 fertiliza-tion programs,CK(no fertilizer),NF (conventional fertilization),SF (controlled release fertilizer)and MF (self -made fertilizer),were set to study the effects of 8 treatments on the activities of leaf enzymes (SOD, POD,CAT)and physiological indexes in adversity(Pro,MDA).The results showed that the leaf SOD and CAT activity had the consistent change trend during the whole growth period and reached the highest at the sil-king stage (individual treatment at the filling stage),followed by a sharp decline.The activity of POD had the similar trend with a slow fall.At the same irrigation level,the CAT,SOD activities under SF treatment were significantly higher than those of NF and MF treatments,and the effect of fertilization on POD activity was not significant.The Pro content treated with W1 was the highest at the bell stage,that treated with W2 was the highest at the silking stage and it was more affected by moisture than fertilizer.The optimum model of water and fertilizer regulation for maize was W2 with SF.