CAJ | 학술논문

大田条件下，设置5个试验处理，即：小麦拔节期和开花期各灌溉60 mm （ W1）；拔节期和开花期测定0～20 cm（W2）、0～40 cm（W3）和0～60 cm （W4）土层土壤含水量，并补灌至土壤相对含水量为70％；全生育期不灌溉（ W0）；以此研究不同土层测墒补灌对小麦耗水特性和产量的影响。结果表明：土壤贮水消耗量为W3＞W1＞W2、W4＞W0，60～140 cm土层贮水消耗量W3处理最高；W3的籽粒产量最高，其水分利用效率高于W0和W4处理。这表明依据0～40 cm土层含水量测墒补灌拔节期和开花期目标相对含水量为70％的W3处理达到节水高产的效果。
대전조건하，설치5개시험처리，즉：소맥발절기화개화기각관개60 mm （ W1）；발절기화개화기측정0～20 cm（W2）、0～40 cm（W3）화0～60 cm （W4）토층토양함수량，병보관지토양상대함수량위70％；전생육기불관개（ W0）；이차연구불동토층측상보관대소맥모수특성화산량적영향。결과표명：토양저수소모량위W3＞W1＞W2、W4＞W0，60～140 cm토층저수소모량W3처리최고；W3적자립산량최고，기수분이용효솔고우W0화W4처리。저표명의거0～40 cm토층함수량측상보관발절기화개화기목표상대함수량위70％적W3처리체도절수고산적효과。
In order to study the effects of supplemental irrigation based on measuring soil moisture in different soil layers on water consumption characteristics and yield of wheat , five treatments were designed un-der field conditions, which were irrigating 60 mm water at jointing and blooming stages (W1), measuring soil water content in 0~20 cm (W2), 0~40 cm (W3) and 0~60 cm (W4) soil layers at jointing and blooming stages and supplemental irrigating to 70% of soil relative water content , and non -irrigation in the whole growth period (W0).The results showed that the soil water consumption ranked as W 3>W1>W2, W4>W0 .The soil water consumption of W 3 in 60~140 cm soil layers was the highest .The highest grain yield was obtained in W3 treatment, whose water use efficiency was higher than that of W 0 and W4 treatments.It indi-cated that supplemental irrigating based on measuring soil moisture in 0~40 cm soil layers to 70%of targeted relative water content at jointing and blooming stages could save water and gain higher yield .