Results 121 to 130 of about 5,564 (146)

水稻秸秆与地膜二元覆盖旱作栽培效应研究

open access: yesShuitu Baochi Xuebao, 2000
我国覆膜稻栽培研究始于1996年,但迄今都为地膜单元覆盖,水稻秸秆+地膜二元覆盖旱作栽培效应的研究结果表明,秸秆+地膜二元覆盖旱作稻田土壤变温幅度降低,水分散失减少,结构改善,养分积累增加;水稻无效分蘖减少,生育转变提前,灌浆结实期延长,穗大粒多,千粒重高,增产效果显著,稻谷产量较地膜覆盖,秸秆覆盖,露地旱作栽培分别增产10.3%,8.9%,23.2%。
doaj  

[Assessment of Dietary Arsenic Exposure Levels and the Associated Health Risks in Chongqing City, China]. [PDF]

open access: yesSichuan Da Xue Xue Bao Yi Xue Ban
Dai X   +11 more
europepmc   +1 more source

Changing research trends in seed responses to stresses: a bibliometric analysis over the last 50 years. [PDF]

open access: yesFront Plant Sci
Liu Z   +10 more
europepmc   +1 more source

我国农业碳排放的影响因素和南北区域差异分析 [PDF]

open access: yes, 2018
刘莉娜   +5 more
core  

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