搜索结果: 1-15 共查到“农学 Fe”相关记录29条 . 查询时间(0.187 秒)
为改善设施土壤中微量元素短缺问题，减少化肥施用，提高设施番茄产量，在水高庄村日光大棚（SFQ）和小沙沃村日光大棚（XFQ）内，以不同量有机肥替代化肥为处理，研究了设施大棚土壤中有效态Fe、Mn、Cu含量的变化情况及与番茄品质和产量的关系。结果表明，有机肥替代化肥均不同程度提高了土壤有效态Fe、Mn、Cu含量。大棚SFQ中，SGY土壤中有效态Mn、Cu含量较对照处理分别提高了140.95%，348....
Facile synthesis of multifunctional bone biochar composites decorated with Fe/Mn oxide micro-nanoparticles: Physicochemical properties, heavy metals sorption behavior and mechanism
biochar composites Fe/Mn oxide micro-nanoparticles heavy metals sorption
2023/6/5
The value-added utilization of waste resources to synthesize functional materials is important to achieve the environmentally sustainable development. In this work, novel micro-nano FeOx- and MnOx-mod...
氧化/磺化腐殖酸对潮土中Cu、Zn、Fe、Mn有效性的影响
腐殖酸 氧化腐殖酸 磺化腐殖酸 微量元素有效性
2019/10/21
【目的】研究比较改性腐殖酸对潮土微量元素有效性的影响及其作用机理，以期为开发提高微量元素有效性的专用腐殖酸功能材料提供科学依据。【方法】采用土壤培养法，将腐殖酸 (HA)、氧化腐殖酸 (YHA) 和磺化腐殖酸 (SHA) 分别按30、100、300 mg/kg用量与干土混匀装入培养瓶中，调节含水量至田间持水量的60%，置于25℃人工气候箱中进行恒温培养，并保持土壤湿度恒定。分别在培养第3、7、15...
为探究施钙与覆膜栽培对花生植株Mg、Fe、Zn营养改善状况,以大籽品种湘花2008和南方典型第四纪红土发育的缺钙酸性红壤为试验材料,设置3个基施钙肥梯度[不施钙(Ca0)、施钙375 kg·hm-2(Ca375)、施钙750 kg·hm-2(Ca750)]和2种栽培方式[露地(OF)、覆膜栽培(PF)],采用土柱栽培,研究施钙与覆膜栽培对植株Mg、Fe、Zn含量,积累及籽仁分配系数的影响。结果表明...
作物生产中缺铁问题十分普遍，筛选耐低铁品种具有重要意义。文中采用BPDS（4,7-diphenyl- l,10-phenanthroline disulfonic acid）专性螯合Fe(Ⅱ)，探究BPDS-Fe(Ⅱ)对2种玉米自交系表型特征与生理特性的影响，旨在解析2个自交系耐低铁胁迫差异及其可能机制，为筛选耐低铁品种提供理论依据。【方法】选用2个玉米自交系Wu312与Ye478，以铵硝比1﹕1...
Effect of replacing dietary FeSO4 with equal Fe-levelled iron glycine chelate on broiler chickens
broiler amino acid chelated iron
2015/7/7
Xanthione oxidase activity in blood serum showed no significant difference between
all treatments at day 21 except for Experimental group 5 (P > 0.05). In addition, catalase activity in blood
seru...
Sustainable forestry and iron compounds in karstic soils: qualitative and semi-quantitative results focused on the occurrence of Fe-compounds on mineral particles
iron oxides iron hydroxides karstic soils soil formation in karsts
2015/4/14
Relic karstic soils in nine localities in the Dinaric Karst in Slovenia, five localities in the Moravian Karst and four localities in the Bohemian Karst were sampled for soil scientific, mineralogical...
The influence of stand density on Mn and Fe concentrations in beech leaves
Fagus sylvatica L. leaf concentration iron manganese shelterwood cutting
2015/2/6
A shelterwood system is widely used in forest management practice. Favourable ecological conditions for the growth of desired natural seedlings are provided by a successive canopy reduction. The impac...
河北农业大学植物营养学课件第六章 微量营养元素 Cl Cu Fe Mn Mo Ni Zn
河北农业大学 植物营养学 课件 第六章 微量营养元素 Cl Cu Fe Mn Mo Ni Zn
2014/4/14
河北农业大学植物营养学课件第六章 微量营养元素 Cl Cu Fe Mn Mo Ni Zn。
Effects of Dietary Fe-soy Proteinate and MgO on Egg Production and Quality of Eggshell in Laying Hens
MgO Fe-soy Proteinate Eggshell Quality Layer Hemoglobin
2016/5/5
This study investigated the effects of Fe-soy proteinate (Fe-SP) and magnesium oxide (MgO) dietary supplements on eggshell quality in laying hens. A total of 800 26-wk-old Hy-Line Brown hens were assi...
Fe对假俭草抗寒性和绿期的影响
假俭草；EDTAFe；青绿期；抗寒性
2013/6/27
为了提高暖地型草坪草假俭草(Eremochloa ophiuroides)的抗寒性，延长其青绿期，设置了4个不同乙二胺四乙酸铁钠（EDTAFe）剂量（1、5、10和15 mL/L），对盆栽假俭草进行处理。结果显示，在低温条件下，与空白对照相比，不同处理假俭草叶片的叶绿素、可溶性糖和脯氨酸含量均有不同程度地提高，而其相对电导率均有不同程度地下降；不同剂量EDTAFe处理，提高假俭草抗寒效果不同...
Prediction of extractable metals (Cd, Pb, Fe Cu, Mn and Zn) in sewage
Sewage sludge heavy metals sequential extraction bioavailability
2010/9/14
The study shows that the metal ion binding to the biotic surface such as sewage is pH dependent and that there is an optimum pH for bioavailability of metals. The influence of the sludge pH and organi...
Effects of NH4-N,Fe and Mn Supplement on the Yield of Cut Roses and the Composition of Recirculating Nutrient Solution in a Closed Rockwool Cultivation System
Recirculating Nutrient Solution Cultivation System
2009/7/10
To research the cyclic use of the drainage solution in a closed system of rockwool cultivation of cut roses, we examined the effects of diluting the drainage solution with water, both with and without...
[ 目的] 研究三峡库区不同地域土壤中微量元素分布与空间变异性。[ 方法] 对三峡库区重庆段中下游的万州区、开县、忠县、城
口县、奉节县、丰都县、云阳县7 个县市土壤中的Fe 、Mn 、Zn、Cu 等4 种微量元素含量进行测定与分析。[ 结果] 研究结果表明, 重庆万州区、云阳县属于缺Fe 、Mn 、Zn 亚区, 开县属于富Fe 缺Zn 亚区, 丰都县、忠县属于缺Zn 亚区, 奉节县属于缺Cu...