Shuitu Baochi Xuebao, 2018 为研究钛白粉生产过程中经无害化处理的副产品钛石膏作为土壤调理剂的施用效果及安全性，试验对供试钛石膏通过成分鉴定—土柱淋溶—盆栽种植的方式，研究了钛石膏和钛石膏淋溶液中的有害元素含量以及钛石膏与土壤不同比例掺混后对油菜生长、产量和功能叶光合速率影响。结果表明：钛石膏主要成分为CaSO4和Fe2O3，固体中的重金属含量均符合国家安全标准。钛石膏淋溶液中含有较少量的Ca2+、Mg2+，不含其他有害物质，施用后不会随雨水和灌溉污染土壤和地下水。随着钛石膏添加比例的增加，油菜产量呈先增高后降低的趋势 ...
王晓琪 +7 more
doaj
, 2018 盾壳霉是世界性病原真菌核盘菌的主要拮抗真菌之一,具有控制温室和田间多种作物菌核病的潜力。本文对国内外盾壳霉次级代谢产物的结构类型及其活性以及相关生物合成研究进行综述,为进一步研究盾壳霉制剂提供依据。厦门市科技惠民计划基金项目 ...
任杰, 刘碧丽, 杨嘉永
core
Shuitu Baochi Xuebao, 2011 采用野外田间试验,研究了浙北平原不同施氮水平对油菜地土壤氮素流失形态与含量的影响。结果表明,施肥的时间与降雨间隔对氮素的流失形态和浓度有明显影响,硝态氮是氮素流失的主要形态,占流失无机氮的比例为0.56～0.95;但若施肥后短期内降雨,铵态氮流失占有量增加,占流失无机氮的比例为0.37～0.42;氮素的流失量与施肥水平明显相关,每1hm2土壤增加氮素用量60kgN时,流失负荷增加2.5%～16.1%;采用有机无机配施的模式可使油菜地土壤氮素流失减少8.6%～16.3%,有效降低径流水中氮素浓度 ...
俞巧钢 +7 more
doaj
Treatment and management for children with urea cycle disorder in chronic stage. [PDF]
Zhejiang Da Xue Xue Bao Yi Xue Ban, 2023 Huang X.
europepmc +1 more source
[Determination of squalene and oxidized squalene in edible oil by gas chromatography-tandem mass spectrometry and evaluation of the thermal stability of squalene]. [PDF]
Se PuXiao GP, Liao DD, Li GS, Luo X, Yuan L.
europepmc +1 more source
[High-throughput screening of 54 alternative plasticizers in sesame oil using gas chromatography-quadrupole time-of-flight mass spectrometry]. [PDF]
Se Pu, 2023 Chen KY +11 more
europepmc +1 more source
[Simultaneous determination of 15 bisphenols in prepared dishes by soild phase extraction purification-ultra performance liquid chromatography-tandem mass spectrometry]. [PDF]
Se PuZhan ZY +5 more
europepmc +1 more source
On counterfactual attitudes: a case study of Taiwanese Southern Min [PDF]
, 2017 core +1 more source
A text-speech multimodal Chinese named entity recognition model for crop diseases and pests. [PDF]
Sci RepLiu R, Guo X, Zhu H, Wang L.
europepmc +1 more source
Wisdom in periodic markets and traditionally used edible & medicinal plants in Jingdong intermontane region, Southwest China. [PDF]
J Ethnobiol EthnomedLi Z +14 more
europepmc +1 more source