CAJ | 학술논문

为合理利用盐化土壤，发展节水灌溉，通过设置3种水量水平（510、340、255 mm）和2种灌水矿化度（0．7和3 g／L），研究盐化土壤种植春玉米时，节水灌溉对春玉米产量及耗水规律的影响。结果表明，灌溉水量和灌水矿化度对耗水量和水分利用效率的影响显著，对产量的影响不显著。春玉米耗水量随灌溉水量的增大而增大，微咸水处理的耗水量低于淡水处理的耗水量。灌溉水量越少，土壤水分越能得到充分利用，50～100 cm土层的水分利用程度越高。灌溉水量为340 m m时，产量与充分灌溉相比减少不超过2％，水分利用效率提高15％左右，节约用水170 m m。
위합리이용염화토양，발전절수관개，통과설치3충수량수평（510、340、255 mm）화2충관수광화도（0．7화3 g／L），연구염화토양충식춘옥미시，절수관개대춘옥미산량급모수규률적영향。결과표명，관개수량화관수광화도대모수량화수분이용효솔적영향현저，대산량적영향불현저。춘옥미모수량수관개수량적증대이증대，미함수처리적모수량저우담수처리적모수량。관개수량월소，토양수분월능득도충분이용，50～100 cm토층적수분이용정도월고。관개수량위340 m m시，산량여충분관개상비감소불초과2％，수분이용효솔제고15％좌우，절약용수170 m m。
To utilize saline soil rationality and the development of water-saving irrigation ,three water levels (510 ,340 ,255 mm) and two kinds of irrigation salinity (0 .7 and 3 g/L) are set in the research to investigate the effect of yield and water consumption laws under water-saving irrigation for spring maize growing on saline soil .The effect of irrigation water quantity and water salinity was significant on water consumption and water use efficiency and insignificant on yield .The results indicated that water consumption in‐creased with the increase in irrigation water ,but water consumption under saline treatments was less than fresh water treatments . The less the irrigation water ,the more soil moisture can be utilized ,and the higher the degree of water utilization in 50 to 100 cm soil layer .When irrigation water was 340 mm ,yield reduction was less than 2% ,and water use efficiency increased about 15% ,and 170 mm of water has been saved .