Comparison of fertilizer-effect models on winter wheat response to nitrogen and phosphorus fertilizers in saline soils in the Yellow River Delta [PDF]
, 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
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Management Strategies of Mountain Farmers in the Less Favoured Areas of France:A Case Study of Pays du Mézenc, Massif Central [PDF]
, 2012 Less favored areas are the main focus of the common agricultural policy (CAP) of the EU. However, there is insufficient research on the economic strategies of farmers in mountainous regions of France.
Ichikawa Yasuo, 市川 康夫
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Spatial sampling method for crop acreage based on remote sensing in hilly area in Minhou County,Fujian Province [PDF]
, 2017 以福建闽侯县作为研究区,采用传统抽样(简单随机抽样、系统抽样、分层抽样); 、空间抽样(空间随机抽样、空间系统抽样、空间分层抽样)等方法对研究区农作物种植面积进行样本抽选、总体推算及误差估计,结果表明: 1 500; m*1 500; m格网为最优抽样单元尺寸,空间分层抽样方法的相对误差为3.86%,变异系数为6.03%,抽样成本为6.03,抽样效率高.与传统抽样方法相比,空间; 抽样方法显著减少样本容量,节约调查成本.Traditional sampling methods of simple ...
刘金福 +5 more
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, 2020 Plant phenomics is under rapid development in recent years, a research field that is progressing towards integration, scalability, multi-perceptivity and high-throughput analysis.
Guohui, Ding +6 more
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, 2018 基于国产GF-1号卫星影像农作物空间分布数据,以正方形网格作为抽样单元形状,综合应用遥感技术、空间抽样方法、模拟退火算法及空间自相关理论,对福建省闽侯县农作物种植面积进行估算.结果表明:根据全局自相关指数Moran’s I及其显著性指标Z Score,选取1 500 m×1 500 m作为最优单元尺寸;对研究区进行剖分,构建抽样框,对比空间随机抽样、空间系统抽样及空间分层抽样的抽样结果,空间分层抽样方法的样本容量为37,相对误差为3.86%,抽样效率最高;运用模拟退火优化算法规划野外调查的最优路径 ...
刘金福 +6 more
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Improvement of Water and Fertilizer Managements for Enhancing Water Productivity and Net Income of Farmers in Arid and Semi-arid Regions [PDF]
, 2023 鳥取大学博士(農学 ...
41084 +5 more
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放射性物質沈着初期の農地土壌からの放射性セシウムの抽出 [PDF]
, 2015 Ion exchangeable fractions of radiocesium in the arable soils, which were collected within the initial stage after deposition of radionuclides, were analyzed.
山口 紀子 +5 more
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Environmental and economic assessment of the intensive wheat - maize production system in the North China Plain [PDF]
, 2016 To ensure food security for its vast population input intensification in crop production has been one of Chinas major strategies in the last decades.
Ha, Nan
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, 2010 本研究は，グローバル化にともなう作物産地の変容を捉える農業地理学の一端として，とくに小麦に注目して，グローバル化に対抗しうる産地の対応と今後の展望を考察した。小麦は国際的な取引量が最も多く，グローバル化が最も進んでいる農産物である。日本は，1960年代以降，とくにアメリカ合衆国より大量の小麦を輸入するようになった。2006年においては，国内生産量の約7倍（550万t）の小麦が輸入されている。農産物流通のグローバル化が進むなかで，今後も日本の小麦産地が維持されていくために次の2点を指摘できる。一つめは ...
仁平 尊明
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Effects of Brackish Water with Different Sodium-Potassium Ratios on Soil Water-Salt Characteristics and Winter Wheat Growth [PDF]
[Objective] To study the effects of brackish water irrigation on soil water and salt characteristics and crop growth is helpful to guide the safe utilization of brackish water.
CHENG Yu +7 more
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