Results 1 to 10 of about 168 (134)
Shuitu Baochi Xuebao, 2019 通过田间小区磁化水滴灌试验，研究了磁化水膜下滴灌对土壤水盐分布特征、棉花生长特性及产量的影响。结果表明：磁化水灌溉可以提高土壤含水量，促进棉花根系对水分的吸收，0-100 cm土层内磁化强度为3 000 Gs时的土壤含水量最大，保水效果最好。磁化水灌溉可以有效降低土壤盐分含量，加快土壤盐分的淋洗，0-100 cm土层内各磁化水处理土壤平均含盐量表现为3 000 Gs < 4 000 Gs < 1 000 Gs < 5 000 Gs < 0 Gs，磁化淡水处理的土壤脱盐率为2.7%~28.2%，3 000
彭遥 +6 more
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Effects of Winter Irrigation on Soil Water-heat-salt Migration and Crop Growth During Freezing-Thawing Period in Qingtongxia Irrigation District of Ningxia [PDF]
, 2023 [Objective] The effects of winter irrigation on soil water-heat-salt migration and crop growth during the freezing-thawing period were analyzed in order to provide a scientific basis for controlling soil salinization, and to ensure food security ...
Han Yuping +4 more
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Soil Salinization Characteristics of Different Land Use Types in a Typical Oasis Irrigation Area of Lower Tarim River [PDF]
, 2023 [Objective] The soil salinization characteristics under different land use types in extremely arid regions were analyzed in order to provide support for the sustainable efficient utilization of regional land resources.
Baiyun Gang +6 more
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Geochemical characteristics of trace elements in Zhuzhuang Coal Mine of Huaibei coalfield [PDF]
, 2023 With industrial development and innovation, the demand for key metal minerals dominated by rare earth elements is increasing day by day. More experts believe that coal measures mineral resources have the potential to obtain key metal minerals, and such ...
Wu LI, Xiang LI
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Effects of Water Supply Location in Anegative Pressure Irrigation System on Tomato Growth and Water Use Efficiency [PDF]
, 2023 [Objective] The specific effects of negative head irrigation system on tomato growth, irrigation method, and water utilization efficiency were studied in order to provide scientific references for improving the technical system of negative head ...
Feng Feng +6 more
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Composition of soluble organic matter and its causes of No. 11 coal from Sangshuping Mine, Shaanxi Province [PDF]
, 2023 Eight samples of No.11 coal in Sangshuping Mine were used for organic geochemical study, Gas chromatography-mass spectrometry (GC-MS) and X-ray fluorescence spectrometry (XRF) were combined with the test results of proximate analysis, sulfur forms and ...
Cunliang ZHAO +5 more
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Effects of Desulfurized Gypsum Applied Combined with Polyglutamic Acid on Improving Saline Soil [PDF]
, 2023 [Objective] The effects of desulfurized gypsum and polyglutamic acid (γ-PGA) improves saline soil were studied in order to provide a theoretical and technical basis for improving saline soil in Northwest China.
Li Hongyi +4 more
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Shuitu Baochi Xuebao, 2022 为了探讨淡水资源不足地区微咸水的合理利用方式。通过盆栽试验, 以清水灌溉为对照, 研究不同比例微咸水与再生水混合灌溉对水盐、水溶性离子、滴水穿透时间WDPT、有机质以及酶活性的影响, 并利用第二代生物综合响应指数法(IBRv2)对微咸水与再生水混灌效应进行评价。结果表明: (1)与再生水灌溉(T1)相比, 随着混合溶液中微咸水比重的升高, 土壤含水率和含盐量逐渐升高且差异显著(P＜0.05)。(2)与T1处理相比, 随着混合溶液中微咸水比重的升高, 土壤K+、Ca2+含量呈降低趋势, Na+、Cl ...
刘春成 +4 more
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Shuitu Baochi Xuebao, 2021 为了探讨淡水资源匮乏地区微咸水与再生水的安全合理利用，通过盆栽上海青试验，以清水灌溉为对照，设置再生水灌溉（T1）、微咸水—再生水1∶2灌溉（T2）、微咸水—再生水1∶1灌溉（T3）、微咸水灌溉（T4）4种灌溉方式，研究了不同比例微咸水与再生水混合灌溉对土壤水盐、作物生物量（地上部和地下部）、叶片叶绿素含量、可溶性蛋白含量、丙二醛（MDA）含量、过氧化氢酶（CAT）活性、超氧化物歧化酶（SOD）活性、过氧化物酶（POD）活性的影响。结果表明：（1）上海青收获后 ...
刘春成 +11 more
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Shuitu Baochi Xuebao, 2023 为探究不同生物炭混掺量对微咸水蒸发特性的影响,采用离心机试验和室内土柱模拟试验,设置3个生物炭质量添加比例(B0、B2、B4)和4个微咸水矿化度(W0、W1、W3、W5),分析不同处理对微咸水蒸发下的土壤水分特征曲线、孔隙分布、累积蒸发量、盐分运移、土壤温度日变幅的影响,并应用蒸发模型进行拟合分析。结果表明:生物炭和微咸水联合应用下能提高土壤持水能力,增加土壤中的较大孔隙和较小孔隙的比例;土壤累积蒸发量随着生物炭混掺量的增加先减少后增加,生物炭混掺量为2%时可以更好地抑制微咸水蒸发 ...
郑健 +4 more
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