Results 111 to 120 of about 664,391 (156)

[Preparation of B@PH/GM-V hydrogel microspheres and their antioxidant and osteogenesis-promoting effects]. [PDF]

open access: yesHua Xi Kou Qiang Yi Xue Za Zhi
Feng Y   +7 more
europepmc   +1 more source

Distribution of nutrients and enzymes in Loess Plateau soil aggregates after long-term fertilization

open access: yes, 2006
土壤养分和生物酶是衡量土壤肥力的指标,土壤团聚体性质则决定了土壤物理结构的好坏,探讨不同培肥措施下土壤养分和生物酶在团聚体中的分布,对合理培肥和改善土壤性状具有重要的实际意义。对连续25a的长期有机培肥定位试验地进行测定,结果表明:培肥增加了大级别土壤团聚体、特征微团聚体的数量,显著地改善了土壤结构。培肥土壤团聚体平均重量直径、特征微团聚体CF0.01较无肥对照土壤有显著增加。长期培肥增强了土壤化学、生物性质的“微域”变异性 ...
张兴昌, 张晋爱, 邱莉萍
core  

[Summary of the 21<sup>st</sup> Chinese Conference on Burns and Wound Repair]. [PDF]

open access: yesZhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Bu YH   +4 more
europepmc   +1 more source

[Research progress on the application of pollen in the biomedical field]. [PDF]

open access: yesSheng Wu Yi Xue Gong Cheng Xue Za Zhi
Bai L, Wang Y, Yang L, Wang Y, Sun Y.
europepmc   +1 more source

黑龙滩水库消落带植被恢复模式对土壤水稳性团聚体组成及其稳定性的影响

open access: yesShuitu Baochi Xuebao
[目的] 为阐明水库消落带不同植被恢复模式对土壤水稳性团聚体组成及其稳定性的影响。[方法] 以川中丘陵区黑龙滩水库消落带人工恢复与自然恢复植被下的土壤为研究对象,利用湿筛法测定分析土壤水稳性团聚体组成特征及其稳定性指标。[结果] 消落带土壤>0.25 mm水稳性大团聚体含量与未淹水对照相比降低4.21%,其中,自然恢复植被下土壤水稳性大团聚体含量较对照下降12.27%,人工恢复植被下大团聚体含量较对照增加3.84%;不同植被恢复模式下土壤水稳性团聚体组成差异显著(p<0.05 ...
白芹菲   +5 more
doaj  

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