贵州农业科学
貴州農業科學
귀주농업과학
GUIZHOU AGRICULTURAL SCIENCES
2009年
11期
38-40,43
,共4页
稻草覆盖%早稻茬%免耕%生理特征%产量%玉米
稻草覆蓋%早稻茬%免耕%生理特徵%產量%玉米
도초복개%조도치%면경%생리특정%산량%옥미
rice straw mulching%rice stubble%no-tillage%physiological characteristic%yield%maize
以杂交玉米登海11号为材料,通过稻田免耕覆草栽培试验,研究了稻草不同覆盖量对湘南丘陵稻作区稻茬免耕栽培秋玉米的生理特征及产量的影响.结果表明:稻草覆盖明显增强玉米硝酸还原酶活性和根系活力,提高玉米叶面积指数和玉米叶片光合势,增加叶绿素含量,对提高玉米产量产生了积极的影响.建议早稻茬免耕秋玉米栽培的稻草覆盖量在9 000～12 000 kg/hm~2为宜.
以雜交玉米登海11號為材料,通過稻田免耕覆草栽培試驗,研究瞭稻草不同覆蓋量對湘南丘陵稻作區稻茬免耕栽培鞦玉米的生理特徵及產量的影響.結果錶明:稻草覆蓋明顯增彊玉米硝痠還原酶活性和根繫活力,提高玉米葉麵積指數和玉米葉片光閤勢,增加葉綠素含量,對提高玉米產量產生瞭積極的影響.建議早稻茬免耕鞦玉米栽培的稻草覆蓋量在9 000～12 000 kg/hm~2為宜.
이잡교옥미등해11호위재료,통과도전면경복초재배시험,연구료도초불동복개량대상남구릉도작구도치면경재배추옥미적생리특정급산량적영향.결과표명:도초복개명현증강옥미초산환원매활성화근계활력,제고옥미협면적지수화옥미협편광합세,증가협록소함량,대제고옥미산양산생료적겁적영향.건의조도치면경추옥미재배적도초복개량재9 000～12 000 kg/hm~2위의.
Denghai 11, a hybrid maize variety, was tested in rice field with rice stubbles under no-tillage and rice straw mulching to study effects of different mulching amount on its physiological characteristics and yield. The results showed that rice straw mulching had a positive effect on maize yield increment by obviously enhancing activity of leaf nitrate reductase and activity of root system, raising leaf area index, leaf photosynthetic efficiency and chlorophyll content. The optimum rice straw mulching amount for autumn maize with no-tillage and rice stubbles is 9 000～12 000 kg/hm~2.
