CAJ | 학술논문

在2012－2013年度和2013－2014年度两个小麦生长季，以强筋小麦济麦20为供试材料，设置4个施氮量处理，即0（N0）、180（N1）、210（N2）、240 kg／hm2（N3），研究施氮量对小麦耗水特性和产量的影响。结果表明：（1）施氮量由零增加到240 kg／hm2，拔节期灌溉前土壤相对含水量显著降低，拔节期灌水量显著增加，总灌水量亦呈增加趋势。（2） N2处理的总耗水量显著高于N0和N1处理，与N3处理无显著差异，其土壤贮水消耗量及占总耗水量的比例均较高，140～200 cm土层土壤贮水消耗较多，利于土壤深层水的利用。（3） N2处理的小麦籽粒产量和水分利用效率显著高于其他处理，是兼顾产量和水分利用效率的适宜施氮量。
재2012－2013년도화2013－2014년도량개소맥생장계，이강근소맥제맥20위공시재료，설치4개시담량처리，즉0（N0）、180（N1）、210（N2）、240 kg／hm2（N3），연구시담량대소맥모수특성화산량적영향。결과표명：（1）시담량유령증가도240 kg／hm2，발절기관개전토양상대함수량현저강저，발절기관수량현저증가，총관수량역정증가추세。（2） N2처리적총모수량현저고우N0화N1처리，여N3처리무현저차이，기토양저수소모량급점총모수량적비례균교고，140～200 cm토층토양저수소모교다，리우토양심층수적이용。（3） N2처리적소맥자립산량화수분이용효솔현저고우기타처리，시겸고산량화수분이용효솔적괄의시담량。
In order to study the effects of nitrogen application rate on water consumption characteristics and yield of strong gluten wheat Jimai 20, four treatments, 0 (N0), 180 (N1), 210 kg/hm2(N2) and 240 kg/hm2 (N3), were designed under field conditions in wheat growing season of 2012-2013 and 2013-2014.The re-sults showed that with the increase of nitrogen application rate from 0 to 240 kg/hm2 , the soil relative water con-tent before irrigation at jointing stage was significantly decreased, the irrigation amount at jointing stage was sig-nificantly increased and total irrigation amount also showed an upward tendency.Total water consumption of N2 treatment was significantly higher than those of N0 and N1 treatment, and had no significant difference with that of N3 treatment.N2 treatment also had higher soil water consumption and higher ratio to total water consump-tion.The soil water consumption of N2 treatment in 140~200 cm soil layer was higher than those of other treat-ments, which indicated that N2 was conducive to the use of water in deep soil layers.The grain yield and water use efficiency of N2 treatment were significantly higher than those of other treatments, thus N2 treatment was the optimum nitrogen application rate.