Results 121 to 130 of about 27,903 (194)

味精废浆与化肥配施对杨树幼苗土壤活性有机碳与微生物活性的影响

open access: yesShuitu Baochi Xuebao, 2016
为探讨味精废浆有机肥对林木土壤的生物学效应及确定味精废浆与化肥适宜的搭配比例,通过盆栽试验,研究了CK(对照,不施肥)、N100(尿素提供100%的氮)、M10N90(味精废浆和尿素分别提供10%与90%的氮)、M30N70(味精废浆和尿素分别提供30%与70%的氮)与M50N50(味精废浆和尿素各提供50%的氮)等处理对杨树幼苗土壤活性有机碳、碳库管理指数(CPMI)与微生物呼吸、代谢熵及生长的影响。结果表明:与N100处理相比,配施味精废浆处理的土壤活性、中活性和高活性有机碳含量均明显升高 ...
叶桂梅   +6 more
doaj  

[New bioactive materials for promoting wound repair and skin regeneration]. [PDF]

open access: yesZhonghua Shao Shang Za Zhi, 2021
Lyu GZ, Zhao P.
europepmc   +1 more source

土壤-水稻系统中铅的生态效应

open access: yesShuitu Baochi Xuebao, 2008
采用盆栽试验研究了土壤—水稻系统中不同铅浓度下(CK,100,300,500,700,900 mg/kg)2种水稻土壤的酶活性、微生物量碳、水稻生理指标及生物量的变化。结果表明:低浓度的铅处理时,土壤酶活性、微生物量碳及水稻生物量有一定的激活效应,而当铅浓度超过500 mg/kg时,多数指标转为抑制作用,其影响程度受土壤性质(如颗粒组成,有机质含量等)制约。水稻叶绿素含量在黄松田水稻土中开始随铅处理浓度的增大而增加,到铅浓度达700 mg/kg时出现峰值,然后随铅浓度的增加而降低 ...
曾路生   +4 more
doaj  

Research progress on bioactive peptides in the treatment of oral diseases. [PDF]

open access: yesZhong Nan Da Xue Xue Bao Yi Xue Ban
Huang W, Wang Y, Wang X, Li K.
europepmc   +1 more source

Food-derived bioactive peptides: health benefits, structure‒activity relationships, and translational prospects. [PDF]

open access: yesJ Zhejiang Univ Sci B
Chen H   +12 more
europepmc   +1 more source

Virology [PDF]

open access: yes, 2007
吉田 与志博   +4 more
core   +3 more sources

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