Results 71 to 80 of about 70,671 (203)
Shuitu Baochi Xuebao, 2022 研究高产与中产麦田小麦产量、光能和氮素利用效率的差异,为缩小产量和资源利用率差,实现小麦高产高效生产提供理论依据。选取高产田和中产田2块麦田,常年小麦产量水平分别为9 000,7 500 kg/hm2。以小麦品种"烟农1212"为供试材料,分析不同产量水平麦田光能利用和氮素利用的差异。结果表明,高产田植株拔节期、开花期和成熟期氮素积累量较中产田提高6.65%~11.25%,开花前氮素向籽粒中的转运量较中产田提高11.60 kg/hm2,开花后氮素同化量较中产田提高21.99 kg/hm2。开花后14 ...
李传梁 +4 more
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New varieties of tomatoes with high resistance to disease and high yield - breeding of a Su Kang No. 7-9 (pink colour fruit) [PDF]
, 1995 提要苏杭七号八号、九号番茄品种是江苏省农科院蔬茉所培育的粉果类型优良一代杂 种, 经所内多年品比试验、江苏省三年区域试验、生产示范及两年全国区试、生产试验, 均表现突出。该品种高杭烟草花叶病毒(TMV)、丰产、品质好、早、中、晚熟配套, 适 应性广, 适宜露地丰产栽培及保护地种植, 已在省内及全国广泛种植, 与当地主栽品种相比, 增产15~50%
Long, M, Lu, C, Xu, H, Yang, R, Yu, W
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Investigating the Origin of Topological‐Hall‐Like Resistivity in Zn‐Doped Mn2Sb Ferrimagnet
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Skyrmions and other chiral spin textures have been extensively studied as potential building blocks for novel spintronic devices. Hall‐resistivity anomalies that deviate from magnetization scaling, known as the topological Hall effect, have been widely employed as evidence for the presence of chiral spin textures in magnetic materials. However,
BoCheng Yu +9 more
wiley +1 more source
High‐Value Targeted Conversion of Copper Slag as LiFePO4 Material for Lithium‐Ion Batteries
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT The massive stockpiling of copper slag (CS) presents severe environmental and resource‐waste challenges. Existing strategies for CS valorization typically yield low‐value‐added products. Herein, we propose an innovative hierarchical regulation approach to transform CS into high‐performance LiFePO4 (LFP) cathode materials.
Yuyun Li +5 more
wiley +1 more source
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT In this study, a newly developed seeded electromagnetic confinement directional solidification (EMCDS) technique was employed to fabricate large‐scale TiAl single crystal ingots with a diameter of 32 mm, overcoming the long‐standing size limitations that have hindered their industrial application.
Wei Wang +9 more
wiley +1 more source
The Effect of N2O Emission Mitigation by Growing Soybeans Instead of Other Crops [PDF]
, 2016 农业是重要的温室气体排放源之一，而在农业生产过程中施用氮肥是引起农业温室气体排放的主要原因。因此，如何合理有效的施用氮肥对减少农业温室气体排放、减缓全球气候变化至关重要。鉴于此，对通过合理施用氮肥从而减少温室气体排放的减排措施进行成本效益分析，将有助于我们找到具有经济效益的农业温室气体减排方法。目前，相关减排措施研究主要集中在农田测土配方施肥、改良施肥（缓释肥和长效肥）上。得益于与豆类作物共生的根瘤菌具有的固氮作用，豆类作物相比其他农作物施用更少的氮肥，从而排放更少的氧化亚氮（N2O）。因此 ...
许俊武
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Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT To address the issues of aluminum (Al) powder agglomeration during combustion and low oxidizer decomposition efficiency in composite solid propellants, this study utilized in situ self‐assembly technology to prepare cobalt‐based hybrid‐coated modified Al powder (Al@CZ).
Chong Chen +11 more
wiley +1 more source
Design and Implementation of Aquaculture Water Quality On-line Monitor System [PDF]
, 2016 海洋水产养殖一直是我国福建沿海主要经济产业之一，而花蛤又是主要海产经济贝类之一，特别在福建等地沿海产量较多。其中花蛤苗的主要产量来自于土池培育。该培育方法是利用天然近海滩涂及大水面进行露天养殖，相对于北方的室内工厂化育苗具有成本低、产量高、投资小、回收期短等特点，但具有严重依赖近海水文水质及气候等自然因素的特点，基于该特点，经考察发现，福建省内绝大部分天然渔场缺少对水质水文数据有效监测的手段，缺乏相应设备及信息监测系统，无法及时根据数据调整养殖策略，导致产量无法有效提高。 本文基于以上内容 ...
陆俊
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Cs2SnI6: A Perovskite‐Based Electromagnetic Wave Absorbing Material
Rare Metals, Volume 45, Issue 4, April 2026.ABSTRACT Lead halide perovskites and carbon‐based materials are interesting, high‐performing electromagnetic wave absorbing materials. However, only a few studies have been carried out to examine in detail the electromagnetic wave absorption properties of these materials.
Fei Han +11 more
wiley +1 more source
Shuitu Baochi Xuebao, 2020 为明确一定养分条件下枸杞耗水量与产量的关系，于2014年和2015年采用2因素3水平对比试验设计，研究了枸杞耗水量与碱解氮消耗量耦合效应对产量的影响，通过回归的耦合模型对基于树种、树龄、碱解氮消耗量的枸杞灌溉制度进行了优化。结果表明：（1）相同施肥条件时，4年树龄时HW产量最高，为1 335.7 kg/hm2，MW产量次之，为1 174.2 kg/hm2，LW产量最低，为1 066.5 kg/hm2，5年树龄时HW产量为2 463.7 kg/hm2，MW产量最高，为2 556.1 kg/hm2 ...
马波, 田军仓
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