Results 31 to 40 of about 70,671 (203)

Determination and Analysis on Total Arsenic and Inorganic Arsenic in Rice of Jiangxi Province(江西省稻米中总砷和无机砷含量的测定与分析) [PDF]

open access: yesShipin kexue jishu xuebao, 2019
The contents of total arsenic and inorganic arsenic in 100 rice samples which were collected from 10 cities of Jiangxi were determined by inductively coupled plasma mass spectrometry (ICP-MS) and high performance liquid chromatography-inductively coupled
DONG Xiaoli(董晓丽)   +1 more
doaj   +1 more source

不同密度垄上三行栽培中行降密对大豆产量影响效果

open access: yes农业科学, 2019
本试验选取三个栽培密度,在三个密度的基础上进行边行增密、中行降密、总量相等的栽培方法,探索不同栽培方法对大豆产量的影响,试验得出,在低密度栽培“36万株/公顷”条件下,大垄两行栽培有利于大豆增产;在中密度栽培“40万株/公顷”条件下,大垄三行中行降密50%有利于大豆增产;在高密度栽培“45万株/公顷”条件下,大垄三行产量不及大垄四行栽培增产。
殿鑫 杨
semanticscholar   +1 more source

Effects of Cold Plasma Cold Sterilization on Major Spoilage Bacteria and Biogenic Amines in Beef(低温等离子体冷杀菌对生鲜牛肉主要腐败菌及生物胺抑制效应研究) [PDF]

open access: yesShipin kexue jishu xuebao, 2018
In order to research the effects of cold plasma cold sterilization (CPCS) on food safety, fresh beef packaged with MAP gas (V(O2)∶V(CO2)∶V(N2)=35%∶35%∶30%) was treated by cold plasma at 72kV for 85s and stored at 4℃ for 10 days.
HUANG Mingming(黄明明)   +3 more
doaj   +1 more source

Development of Sterilization Technology and Equipment of Cold Plasma Cold Sterilization(低温等离子体冷杀菌关键技术装备研究进展) [PDF]

open access: yesShipin kexue jishu xuebao, 2018
Cold plasma as an effective non-thermal technology for decontamination has been received more and more attention in recent years. This review provides a critical summary of studies of development background and the sterilization mechanisms of cold plasma,
ZHANG Jianhao(章建浩)   +3 more
doaj   +1 more source

不同比例施肥对玉米产量性状影响

open access: yes农业科学, 2019
氮、磷、钾合理配比施肥是保证玉米高产的重要基础,本试验结合近几年肥料试验成果,以磷肥施用量为基准,选择9个施肥比例进行试验,筛选出玉米高产的最佳施肥比例为1.5:1:0.6。
维利 王
semanticscholar   +1 more source

氮肥后移对大豆产量影响

open access: yes农业科学, 2019
氮肥后移是将施用氮肥的时期和施用量重点放在了大豆关键生育中期,以满足大豆对氮素的需求,本试验在大豆总氮量用量相同的前提下,对氮肥施用时期及施用量进行试验,筛选出最佳施肥方法为深施普通尿素30%+缓释尿素60%+结荚期叶面追氮10%。
维利 王
semanticscholar   +1 more source

Comparison of fertilizer-effect models on winter wheat response to nitrogen and phosphorus fertilizers in saline soils in the Yellow River Delta [PDF]

open access: yes, 2017
通过大田试验, 研究了黄河三角洲盐碱土地区冬小麦合适的肥料效应模型。在冬小麦生长季设置4种不同的氮磷肥用量, 根据“3414”试验设计8 种不同的肥效试验处理, 以探讨线性加平台、一元二次、平方根和二元二次4 种不同模型的拟合效果。结果显示, 4 种肥料效应模型的拟合结果经检验都达到极显著水平 (P<0.01)。在一元肥料效应模型中, 氮磷一元二次模型拟合效果最好, 最高收益分别为7 448.3 元·hm-2 和7 357.7 元·hm-2 ...
付希强   +8 more
core   +1 more source

Anecdotes or Ecological Patterns: Symbiotic Foraging Behaviors in Coyotes and Badgers 奇特模式还是生态格局: 郊狼与獾的共生觅食行为

open access: yesWildlife Letters, EarlyView.
Using a 3‐year, broad‐scale camera‐trap network in western Kansas, we tested whether coyotes and American badgers exhibit spatiotemporal patterns consistent with coordinated hunting. Despite high diel activity overlap, detection‐conditioned co‐detections occurred far less frequently than expected under independence, and short‐term temporal sequencing ...
Ty J. Werdel   +3 more
wiley   +1 more source

Nitrogen deposition does not exacerbate phosphorus limitation of rhizosphere microbes in subalpine forests

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The stoichiometric imbalance caused by nitrogen (N) deposition typically exacerbates phosphorus (P) limitation in plants. However, it remains unclear whether this effect extends to soil microbes, particularly those in the rhizosphere.
Jipeng Wang   +5 more
wiley   +1 more source

Jellyfish blooms restructure plankton dynamics and trophic linkages in coastal waters

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Jellyfish blooms are increasing globally in frequency and intensity, introducing complex ecological interactions, yet the mechanisms by which they alter ecosystem structure remain poorly characterized due to a lack of sustained field observations.
Pengpeng Wang   +4 more
wiley   +1 more source

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