Results 1 to 10 of about 231 (143)
Response of Soil Respiration to Storage Irrigation and Freeze-thaw Cycles in Extremely Arid Areas [PDF]
, 2022 [Objective] The effects of water storage irrigation and seasonal freezing and thawing on soil respiration were determined in order to improve the utilization efficiency of irrigation water resources, and save irrigation water resources at Shiyang River ...
Gao Yayu +3 more
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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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Shuitu Baochi Xuebao, 2022 为研究不同秸秆还田量替代部分化肥后对黄土高原冬小麦产量、水肥利用效率和硝态氮积累特征的影响。于2018—2021年在晋南黄土旱塬冬小麦种植区,设置秸秆不还田(S0)、秸秆半量还田(S1/2)、秸秆全量还田(S1)、秸秆2倍量还田(S2)4个还田量处理,研究不同秸秆还田量替代化肥对冬小麦产量形成、水肥利用效率及土壤硝态氮残留的影响。结果表明:在黄土旱塬麦区,秸秆还田替代8.3%~31.9% N和15.7%~63.2% P2O5的基础上,冬小麦产量总体随秸秆还田量增加而增加,且在降水丰沛年份 ...
王嘉豪, 李廷亮, 黄璐, 宋红梅
doaj
Shuitu Baochi Xuebao, 2023 为优化豫北地区冬小麦在滴灌条件下的灌水技术参数,通过田间试验系统研究了不同滴头流量(2.0,4.0,6.0 L/h)和滴灌带间距(40,60,80,100,120 cm)对灌溉水在土壤中分布、冬小麦产量以及水分利用效率的影响。结果表明:就灌水均匀度而言,缩小滴灌带间距和增加滴头流量可以提高灌溉水在冬小麦根区的分布均匀度;本试验条件下滴灌带铺设超过80 cm,会影响冬小麦产量及其构成,滴灌带间距相同时,冬小麦产量随着滴头流量的增加呈递增趋势。就水分利用效率而言 ...
衣若晨 +6 more
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Effects of Water and Nitrogen Management on Soil Nitrogen Metabolism Enzyme Activity and Wheat Nitrogen Utilization [PDF]
[Objective] To explore the effects of water and nitrogen management on soil nitrogen metabolism enzyme activity and wheat nitrogen utilization under irrigation based on soil moisture.
CUI Zhenkun +4 more
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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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Effects of Tillage Disturbance on Slope Shape and Micro-topographic Features on Typical Sloping Cropland of Southwestern Alpine-canyon Area [PDF]
[Objective] The objective of this study was to investigate the effects of various tillage practices on on slope shape and micro-topographic features on typical sloping croplands of southwestern alpine-canyon area.
LIU Jingyi +8 more
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Shuitu Baochi Xuebao, 2023 为探明不同栽培措施下全膜覆土穴播种植对不同基因型冬小麦生产的土壤水分状况、产量和品质的影响,为旱作冬小麦覆膜适水种植与农业绿色可持续高质量生产提供依据。采用普通聚乙烯地膜覆土穴播(PE)和生物降解地膜全膜覆土穴播(BM)2种覆盖材料种植方式,以传统露地穴播(LD)为对照,研究不同栽培措施对冬小麦土壤水分状况、产量、水分利用效率和主要品质的影响。结果表明,在干旱气候和作物耗水影响下,地膜覆盖处理较LD降低0—300 cm土层土壤平均含水量,BM较PE显著降低0—300 cm土层土壤水分 ...
王磊 +8 more
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Shuitu Baochi Xuebao, 2020 为探究不同栽培方式对冬小麦生长发育、产量形成及水分利用的影响。通过田间试验，设置传统畦田种植（TC）、垄作种植（RC）和高低畦田种植（HLC）3种栽培方式，其中RC和HLC种植模式分别设置3种灌溉处理（900，720，540 m3/hm2），以TC的常规灌溉（900 m3/hm2）作为对照，研究3种栽培方式下冬小麦生育期内的土壤水分变化与耗水规律，分析栽培方式对产量构成要素和水分利用效率的影响。结果表明：不同栽培方式下冬小麦各生育期的土壤含水量变化具有显著差异，RC处理的集雨储水能力相对较强 ...
刘俊明 +4 more
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The impact of weather patterns on inter-annual crop yield variability [PDF]
Inter-annual variations in crop production have significant implications for global food security, economic stability, and environmental sustainability.
Khouakhi, Abdou +2 more
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