Results 71 to 80 of about 6,098 (153)
, 2011 MP4 video‘Ghost Queen’ was told by 'phags mo tshe ring in A mdo Tibetan. Rta rgyugs, a subdivision of Rka phug Administrative Village, is a farming village located in Khams ra Town, Gcan tsa County Town, Rma lho Tibetan Autonomous Prefecture, Qinghai ...
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Shuitu Baochi Xuebao, 2017 以丹江口库区五龙池小流域玉米黄棕壤为例，利用原位矿化试验，通过与横垄无覆膜土壤比较，研究横垄覆膜对土壤净氮矿化的影响。结果表明：玉米苗期中期和拔节期前期，横垄覆膜土壤净氮矿化量与无覆膜土壤相比分别降低7.8%～57.0%和2.2%～52.8%；玉米拔节期后期、抽穗期和成熟期，横垄覆膜土壤净氮矿化量比无覆膜土壤分别提高352.9%～703.3%，52.5%～311.0%和15.2%～334.8%。横垄覆膜土壤净氮矿化量在玉米苗期、拔节期、抽穗期和成熟期与含水量、温度和全氮间均存在较强度关联关系（0.6 ...
于兴修 +6 more
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, 2011 MP4 video‘A Selfish Mother’ was told by Jo skyabs in A mdo Tibetan. Rta rgyugs, a subdivision of Rka phug Administrative Village, is a farming village located in Khams ra Town, Gcan tsa County Town, Rma lho Tibetan Autonomous Prefecture, Qinghai ...
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Shuitu Baochi Xuebao, 2017 研究川中丘陵紫色土区坡耕地玉米全生育期地表径流及其氮素流失特征，以期为坡耕地氮素流失预测和有效防控提供理论依据。采用人工模拟降雨与微小区（1 m×2 m）相结合的方法，降雨强度设置为1.0，1.5，2.0 mm/min，分别在玉米苗期、拔节期、抽雄期和成熟期进行人工模拟降雨。结果表明：玉米全生育期地表径流量及其氮素流失量随降雨强度的增加而增加。不同降雨条件下，玉米全生育期地表径流总量表现为苗期显著高于其它生育期。玉米拔节期地表径流中氮素平均流失浓度高达16.36 mg/L ...
冯小杰, 郑子成, 李廷轩
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King's Son and Minister's Son [PDF]
, 2011 avi video‘The King’s Son and Minister’s Son’ was told by Rgyal mtshan in A mdo Tibetan. Rta rgyugs, a subdivision of Rka phug Administrative Village, is a farming village located in Khams ra Town, Gcan tsa County Town, Rma lho Tibetan Autonomous ...
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Shuitu Baochi Xuebao, 2004 设计5种不同供水处理进行对夏玉米根系生长和底墒利用的影响试验。结果表明，有限供水对夏玉米根长的影响效应比根生物量显著，有限供水能促使夏玉米更多地利用土壤底墒，供水少，底墒利用率高，凸现出夏玉米对土壤缺水干旱的生理性适应机制和抗旱生态反应。5种供水处理以供水151．3mm，耗水190．1mm的夏玉米产量收获指数和水分利用效率最高。改变高水高产的传统耕作观念，推行有限供水，生育期内合理调配灌水量，提高水分利用效率，发挥土壤水库的调节作用，达到稳产又节水的生态农业目的。
任三学 赵花荣 霍治国 王素艳
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, 2011 MP4 video‘Hunting Elephants’ was told by Rgyal mtshan in A mdo Tibetan. Rta rgyugs, a subdivision of Rka phug Administrative Village, is a farming village located in Khams ra Town, Gcan tsa County Town, Rma lho Tibetan Autonomous Prefecture, Qinghai ...
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Shuitu Baochi Xuebao, 2005 利用田间试验,探讨了地下部分隔对蚕豆/玉米间作氮素吸收和土壤硝态氮残留的影响,结果表明:蚕豆/玉米间作,蚕豆不分隔条件下籽粒和秸秆吸氮量比分隔分别增加20 10%,34 43%;玉米不分隔条件下籽粒吸氮量与分隔近似,但秸秆吸氮量比分隔减少13 04%;蚕豆和玉米不分隔条件下土壤硝态氮累积量都高于分隔。蚕豆/空带间作,蚕豆不分隔籽粒吸氮量高于分隔,但土壤硝态氮累积量没有差异。空带/玉米间作,地下部分隔与否,作物吸氮量和土壤硝态氮累积量都没有差异。
叶优良 李隆 孙建好 张福锁
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, 2011 MP4 video‘Barley Seed Son’ was told by Rgyal mtshan in A mdo Tibetan. Rta rgyugs, a subdivision of Rka phug Administrative Village, is a farming village located in Khams ra Town, Gcan tsa County Town, Rma lho Tibetan Autonomous Prefecture, Qinghai ...
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, 2011 MP4 video‘Parent-Eater’ was told by 'phags mo tshe ring in A mdo Tibetan. Rta rgyugs, a subdivision of Rka phug Administrative Village, is a farming village located in Khams ra Town, Gcan tsa County Town, Rma lho Tibetan Autonomous Prefecture, Qinghai
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