Results 21 to 30 of about 8,449 (112)
Occurrences of dust storms and long‐distance movement of dust across landscapes is constantly increasing in south Asia. This dust is expected to have profound impact on vegetation health and sustainability as dust may contribute to nutrient budgets of the forest ecosystems, while it could impart various stresses to the plants.
Shree P. Pandey +2 more
wiley +1 more source
Multiple global change factors alter the scaling of nitrogen to phosphorus in alpine plants
Read the free Plain Language Summary for this article on the Journal blog. Abstract The stoichiometry and allometry of nitrogen (N) and phosphorus (P) reflect nutrient absorption and dynamic allocation by plants, and can be regulated by global change factors (e.g. nitrogen enrichment, climate warming and altered precipitation). Yet, how multiple global
Jiapu Li +10 more
wiley +1 more source
Abstract Black women are more likely to experience traumatic birthing events, more likely to experience perinatal depression, and less likely to receive mental health treatment than women of other racial and ethnic backgrounds, and yet largely overlooked in perinatal mental health research.
Helenia Quince +3 more
wiley +1 more source
Assessing Closed Hydroponic Subsystems for Batavia Lettuce Growth Under Different Planting Densities
ABSTRACT Hydroponic systems have the potential to be sustainable and alternative methods for food production that confer advantages of high production and better control of growth. However, only a few studies have focused on leafy vegetable growth in different subsystems and environmental variables.
Demet Çekin +6 more
wiley +1 more source
基于2013—2016年在吉林省永吉县、九台区、梨树县和前郭县开展的40组田间试验,通过研究稻谷产量、养分吸收量、肥料利用效率及养分平衡等指标,比较了测土配方(ST)与NE养分专家系统(NE)两种推荐施肥方法在吉林省中部一季稻区的应用效果与适用性。结果表明:农民习惯施肥(FP)处理稻谷产量平均为9.17 t/hm2,ST (9.21 t/hm2)和NE (9.24 t/hm2)处理产量均高于FP处理但并无显著差异。氮肥农学利用率以NE处理显著高于FP处理,磷肥农学利用率以ST处理显著高于FP、NE处理 ...
刘奕 +7 more
doaj
China's Eco‐Civilisation, Climate Leviathan, and Hobbesian Energy Transition
Abstract Scholars have hitherto tended to theorise China's ecological civilisation project either as a form of environmental authoritarianism or as a vision of eco‐socialism. This paper contributes to the conversation by conducting a textual analysis of Chinese scholarly discussions on eco‐civilisation.
David Chen
wiley +1 more source
不同施氮措施条件下,对保护地黄瓜生育期内氮素吸收利用效率、氮素淋洗损失进行了研究,同时也研究了不同处理对黄瓜产量及品质的影响。试验结果表明,传统施肥处理(2100kg/hm^2)与推荐施肥处理(900kg/hm^2)之间氮素吸收量没有显著差异,传统施肥处理中大量的氮肥没有用于促进黄瓜对养分的吸收利用,其氮肥利用率、农学利用率以及生理利用率都很低,每千克纯氮增产只有2.06kg,91.65%的氮素以各种途径被损失掉,其中土壤硝态氮淋洗是主要形式。同时研究发现,传统施肥处理过量氮肥施用阻碍其它营养元素的吸收,
杨治平, 陈明昌, 张强, 张建杰
doaj +2 more sources
本研究旨在探讨微生态制剂对豪猪生长性能和养分的表观消化率的影响。选取3月龄、体重相近的豪猪18只,随机分成2组,每组9只3个重复(1雄2雌),分别饲喂2种不同的日粮:对照组为基础日粮,试验组为基础日粮+0.5%微生态制剂,进行28 d的饲养试验,并用内源指示剂法(4 mol/L HCI不溶灰分)测定试验豪猪对日粮养分的消化率。结果表明:在整个试验期间2组试验豪猪平均日增重差异不显著(P>0.05),料重比差异不显著(P>0.05);但试验组的粗灰分消化利用率显著高于对照组(0 ...
朱开明 +7 more
doaj
Read the free Plain Language Summary for this article on the Journal blog. Abstract Invasive plants are a major cause of the global biodiversity crisis; it is therefore crucial to understand mechanisms that contribute to their success. South‐western Australia is a global biodiversity hotspot with extremely low soil phosphorus (P) concentrations.
Dan Tang +7 more
wiley +1 more source
探讨不同有机物施用对土壤肥力与作物养分吸收利用的影响,以达到农田培肥和提升作物养分利用效率的目的。2015年在江西省红壤研究所布置田间施肥试验,设置不施肥(CK)、常量化肥(CF)、减量化肥(RF)、全量化肥配施秸秆(CFR)、减量化肥配施秸秆(RFR)、全量化肥配施生物黑炭(CFB)、减量化肥配施生物黑炭(RFB)、减量化肥配施猪粪(RFP)、减量化肥配施蚓粪(RFV)9种不同施肥处理,研究全量化肥和减施40%化肥条件下配施不同有机物对土壤肥力及作物养分利用效率的影响。结果表明 ...
邬梦成 +8 more
doaj

