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以浓度分别为0、0.01、0.1、1.0 mmol/L的硝普钠（Sodium nitroprusside, SNP; NO供体）处理玉米、小麦、花生、小白菜、萝卜、黄瓜的种子和幼苗，研究了以上几种浓度的SNP对作物种子萌发和幼苗生长及抗氧化酶活性的影响。结果表明：SNP对多数种子萌发影响表现为低浓度（0.01 mmol/L和0.1 mmol/L）促进，高浓度（1.0 mmol/L）抑制，其中对萝卜...
Development of the V-furrow No-Till Direct Seeding of Rice Stabilization of Culture by Adopting the Winter-Puddling Seedbed Preparation
Growth and yield No-till direct seeding Rice Seedbed preparation Seedling emergence
2009/7/8
In Japan, no-till direct seeding of rice has been expected to reduce production cost, and thus many trials have been repeated. However, we pointed out that it has problems for practical use such as l...
滇池流域集约化菜田NO与NO2排放的研究
滇池流域 集约化菜田 NO与NO2排放速率 NOx-N损失率
2012/4/9
采用密闭通气气室法，在滇池流域旱季和雨季开展了2个生长周期内集约化西芹地NO/NO2排放研究。结果表明， NO/NO2排放速率的日变化规律受温度的影响较为明显，中午时段最高，凌晨时段最低。西芹生育期间，CK处理（裸地）的NO/NO2排放速率维持在一定水平，中后期NF处理（不施氮）NO/NO2排放速率有所升高；LF（N 450 kg/hm2）和HF（N 1200 kg/hm2）处理受西芹的生长和频繁...