Results 91 to 100 of about 9,759 (153)

麥作の土壤水分に関する研究 第1報 [PDF]

open access: yes, 1949
三宅, 章, 吉岡, 金市
core  

[Analysis of current status and trends of disease burden of knee osteoarthritis in China, 1990-2023]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Liao J, Wu Q, Wu G, Guo B, Zhang J.
europepmc   +1 more source

控释肥在盆栽棉花上的肥效研究

open access: yesShuitu Baochi Xuebao, 2006
采用包膜控释肥进行了棉花盆栽试验,并以普通复合肥作对照研究包膜控释肥对棉花的增产效应。研究结果表明,与普通复合肥相比,施用控释肥更有效提高了土壤中硝态氮和铵态氮及其速效磷、速效钾含量,经控释肥处理的棉花叶绿素相对含量、株高均比普通复合肥有明显的优势。控释肥对棉花的果枝数、桃数在各施肥水平上与普通复合肥相比不显著,包膜控释肥施用纯氮量分别在0.2,0.4 g/kg土时比相同施氮量普通复肥具有显著的增产作用,相对增产率分别为113.1%和34.5%,而且在施用量减少的情况下,仍能获得高于普通复肥的产量 ...
doaj  

[A randomized controlled trial of weight management based on mobile health techno-logy among overweight or obese pregnant women]. [PDF]

open access: yesBeijing Da Xue Xue Bao Yi Xue Ban
Li P   +6 more
europepmc   +1 more source

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