CAJ | 학술논문

为探明微润灌溉对番茄生长和土壤水分的影响，设置了3种不同埋深和2种不同工作压力，研究了微润带埋设深度和压力对番茄生长、产量及水分利用效率的影响。结果表明：定植后94天，微润带压力水头为180 cm 、埋深为15 cm 时的番茄株高分别比埋深10 cm 和20 cm 的处理增加9．17％和7．55％；此时番茄气孔导度最小，光合速率和水分利用效率最大，分别比埋深为10 cm 和20 cm 的处理增产3．24％和7．45％；不同埋深土壤含水率垂直分布随时间的变化存在差异，15 cm 埋深时的土壤含水率最大。微润带埋深是影响土壤水分时空变化的主要因素；压力对土壤含水量时间变化影响不显著。
위탐명미윤관개대번가생장화토양수분적영향，설치료3충불동매심화2충불동공작압력，연구료미윤대매설심도화압력대번가생장、산량급수분이용효솔적영향。결과표명：정식후94천，미윤대압력수두위180 cm 、매심위15 cm 시적번가주고분별비매심10 cm 화20 cm 적처리증가9．17％화7．55％；차시번가기공도도최소，광합속솔화수분이용효솔최대，분별비매심위10 cm 화20 cm 적처리증산3．24％화7．45％；불동매심토양함수솔수직분포수시간적변화존재차이，15 cm 매심시적토양함수솔최대。미윤대매심시영향토양수분시공변화적주요인소；압력대토양함수량시간변화영향불현저。
In order to verify the effects of moistube-irrigation on the growth of tomato and water condition of soil , three different buried depths and two different pressure heads were designed .In addition ,the resulting the effects were further analyzed on the growth and yield of tomato and water use efficiency .The results showed that after 94 days of planting ,the buried depth at 15 cm had the highest plants which were increased by 9 .17% and 7 .55% from the buried depths at 10 cm and 20 cm ,respectively .At this time ,tomatoes had the minimal stomata conductance and highest pho-tosynthetic rate and WUE within all of the four treatments employed in this investigation ,resulting in yield increases of 3 .24% and 7 .45% more at buried depth at 15cm than those at buried depths at 10 cm and 20 cm ,respectively .The temporal variations of soil water content along vertical distribution were different under different buried depths ,with the buried depth at 15 cm the highest .The buried depth of moistube was the main factor influencing the temporal variations of soil water content .However ,the effects of temporal variations of soil water content under different pressures were sec -ondary .