CAJ | 학술논문

研究了2种灌水量（ W）和3种施氮（ N）量对日光温室番茄产量和土壤中水、N利用率的影响，结果表明：施N量对番茄产量的影响大于灌水量，两因素间存在交互作用。施 N量和灌水量均可显著影响土壤水分利用率（WUEY）。灌水量较多时（4541．0 m3/hm2），WUEY随着施N量的增加而增加，但差异不显著；而灌水量较少（2270．5 m3/hm2）时，追施少量N肥（373．77 kg/hm2）即可显著提高WUEY；在施N量相同的前提下，加大灌水量可显著降低WUEY。在灌水量相同的情况下，随着施N量的增加，N素损失率显著增加；在施N量相同的情况下，不同的灌水量对N素损失率影响不显著。
연구료2충관수량（ W）화3충시담（ N）량대일광온실번가산량화토양중수、N이용솔적영향，결과표명：시N량대번가산량적영향대우관수량，량인소간존재교호작용。시 N량화관수량균가현저영향토양수분이용솔（WUEY）。관수량교다시（4541．0 m3/hm2），WUEY수착시N량적증가이증가，단차이불현저；이관수량교소（2270．5 m3/hm2）시，추시소량N비（373．77 kg/hm2）즉가현저제고WUEY；재시N량상동적전제하，가대관수량가현저강저WUEY。재관수량상동적정황하，수착시N량적증가，N소손실솔현저증가；재시N량상동적정황하，불동적관수량대N소손실솔영향불현저。
Influences of 2 water levels and 3 nitrogen levels reciprocally application on water use efficiency (WUEY)and nitrogen use efficiency(NUE)were studied in tomato(cv.Skala)solar greenhouse under similar yield as compared with the conventional method .The results showed that:The increasing effect of three factors on tomato yield was in an order of N >H2 O.There were interactions between the two factors .WUE Y was significantly affected by both irrigation and nitrogen amount.Under W1(4 541.0 m3/ha),as the levels of nitrogen amount increased ,the WUEY also increased,but no significant difference among the WUE YS.Under W2(2 270.5 m3/ha),N2(373.77 kg/ha)was not significant different from N1.Under the same amount of nitrogen ,as the amount of irrigation in-creased ,the WUE Y decreased .N loss percentage was not distinctly affected by water ,but strongly affected by the a-mount of nitrogen .Rational water and nitrogen can reduce N loss percentage effectively .