生态经济
生態經濟
생태경제
Ecological Economy
2009年
9期
26~29
,共null页
施氮 灌水 冬小麦 光合作用 籽粒产量
施氮 灌水 鼕小麥 光閤作用 籽粒產量
시담 관수 동소맥 광합작용 자립산량
nitrogen; irrigation; winter wheat （Triticum aestivum L）; photosynthesis; grain yield
大田条件下设置不同的施氮和灌水水平，研究施氮量和灌水量对冬小麦（Triticum aestivum L．）叶片光合作用生理及籽粒形成的影响。结果表明，施氮和灌水提高叶片Fv／Fm和Pn，并显著提高冬小麦籽粒产量、单位面积穗数和每穗粒数。施氮明显降低千粒重，而适量灌水明显提高千粒重。
大田條件下設置不同的施氮和灌水水平，研究施氮量和灌水量對鼕小麥（Triticum aestivum L．）葉片光閤作用生理及籽粒形成的影響。結果錶明，施氮和灌水提高葉片Fv／Fm和Pn，併顯著提高鼕小麥籽粒產量、單位麵積穗數和每穗粒數。施氮明顯降低韆粒重，而適量灌水明顯提高韆粒重。
대전조건하설치불동적시담화관수수평，연구시담량화관수량대동소맥（Triticum aestivum L．）협편광합작용생리급자립형성적영향。결과표명，시담화관수제고협편Fv／Fm화Pn，병현저제고동소맥자립산량、단위면적수수화매수립수。시담명현강저천립중，이괄량관수명현제고천립중。
A field experiment was conducted to investigate the effects of nitrogen application and irrigation on leaf photosynthesis performance and the grain yield formation in winter wheat on the Loess Plateau, China. The results indicated that both nitrogen application and irrigation improved the leaf Fv/Fm and Pn at different crop growth stages, and also increased the ears, grains per ear and the grain yield. Nitrogen applying significantly reduced winter wheat 1 000-grain weight, while appropriate irrigation significantly increased 1 000-grain weight.
