CAJ | 학술논문

为了探讨膜下滴灌棉花水肥耦合效应，于2003--2004年在北疆雨水较少地区开展不同水氮条件对棉花产量效应的大田试验研究。结果表明，在该试验条件下，土壤水分对产量的作用最大，氮肥次之；水氮耦合的产量效应表现为适宜土壤水分中施肥量效果最高，高土壤水分中施肥量次之，低土壤水分低施氮量最低；水氮交互大小的顺序是水氮耦合〉土壤水分〉施氮量；获得最高籽棉产量5253kg／hm2的灌水量为4190m2／hm2，施氮量为276kg／hm2。
위료탐토막하적관면화수비우합효응，우2003--2004년재북강우수교소지구개전불동수담조건대면화산량효응적대전시험연구。결과표명，재해시험조건하，토양수분대산량적작용최대，담비차지；수담우합적산량효응표현위괄의토양수분중시비량효과최고，고토양수분중시비량차지，저토양수분저시담량최저；수담교호대소적순서시수담우합〉토양수분〉시담량；획득최고자면산량5253kg／hm2적관수량위4190m2／hm2，시담량위276kg／hm2。
To seek for coupling effect of water and fertilizer on cotton by drip irrigation, experiments to study effects of different conditions of soil moisture content and nitrogenous fertilizers on cotton yield during 2003-2004 were conducted in North Xinjiang where there is rare rain . Results showed that water was the chief factor and nitrogen was the second factor to affect cotton yield. Yield effect of water and nitrogen coupling was the highest in the condition of suitable irrigation and middle nitrogen fertilizer, but was the lowest in low irrigation and low nitrogen fertilizer, and was between the two in high irrigation and middle nitrogen fertilizer. The effect order of interaction was water and nitrogen coupling 〉irrigation 〉nitrogen. When the irrigation amount was 4 190 m3/hm2,and nitrogen application rate was 276 kg/hm2, the output of seed cotton was the highest,up to 5 253 kg/ hm2.