Results 11 to 20 of about 352 (145)
Soil Erosion and Its Spatial Distribution Characteristics in Three-River-Source National Park [PDF]
, 2023 [Objective] The Three-River-Source National Park (TRSNP) is considered to be the “water tower of China”, and is an important ecological security barrier in China.
Huang Tingting +5 more
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Understanding drought risk in China and improving drought monitoring and early warning [PDF]
, 2021 A summary of the outcomes of the collaboration between the UK Centre for Ecology & Hydrology and the China Institute of Water Resources and Hydropower Research over the last four years. Activities have included workshops in China and the UK, co-hosting a
Barker, Lucy +3 more
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Effects of PBAT on Soil Water and Salt in Maize Root Zone and Maize Yield in Saline-alkali Land [PDF]
[Objective] In order to reduce soil pollution caused by plastic film, the application effect of using PBAT fully biodegradable plastic film instead of ordinary PE plastic film combined with drip irrigation to grow maize in mild secondary salinized soil ...
HOU Jiana +6 more
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Shuitu Baochi Xuebao, 2020 于2017—2019年在吉林省农安县设置大田试验，采用双因素裂区设计，主区为秸秆还田J（12 000 kg/hm2）、秸秆不还田W，副区为施镁M3（施纯镁10 kg/hm2）、不施镁M0，包含JM3（秸秆+镁肥）、JM0（秸秆+无镁肥）、WM3（无秸秆+镁肥）、WM0（常规）4个处理。结果表明：玉米生育期，土壤交换镁含量逐渐降低，至成熟期，JM3处理土壤交换镁含量比WM3、JM0、WM0分别提高6.59%，8.47%，14.09%。施用镁肥促进玉米植株对镁素养分的吸收 ...
张美玲 +5 more
doaj
Synergistic Effects of No-tillage Combined with Mulching on Improving Soil Moisture Use and Potato Yield [PDF]
[Objective] Considering the severity of both spring drought and spring cold, and shallow effective topsoil in the southern mountainous areas of Ningxia Province, synergistic effects of no tillage combined with mulching on improving soil moisture use and ...
DUAN Ruibing +5 more
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Shuitu Baochi Xuebao, 2003 以本地优良马铃薯品种“米拉”的脱毒种为主体作物，采用马铃薯套玉米间秋白菜、马铃薯间春大白菜套葱、马铃薯套唐菖蒲、马铃薯套半夏、马铃薯间折耳根、马铃薯套玉米间胡萝卜6种种植模式，进行试验研究，结果表明，马铃薯套玉米间胡萝卜模式的投入产出效果最佳，其产投比和纯收入最高，分别为2．937和1278．79元／667m^2，可大面积推广。马铃薯套玉米间秋白菜、马铃薯间春白菜套葱、马铃薯间折耳根产投比在2．1912—2．4071之间，可在城郊及集镇附近推广应用。
曹国璠 张荣达 胡建风 吴明开
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Shuitu Baochi Xuebao, 2023 为探讨保护性耕作和秸秆还田有机结合对春玉米休闲期蓄水保墒效果、生育期土壤水分时空变化、贮水量季节变化、产量及水分利用效率的影响,设置不同耕作方式(免耕、深松、翻耕)结合秸秆还田(100%秸秆还田、秸秆不还田)6个处理组合,2016-2018年在山西晋中连续2年进行定位试验研究。结果表明:(1)春玉米冬闲期不同耕作处理下土壤贮水量差异显著,且随着时间推移贮水量都有降低趋势,免耕和深松处理分别较翻耕土壤贮水量平均增加10.4,9.3 mm。在玉米的整个生育时期,免耕和深松处理土壤贮水量分别比翻耕提高4.8%,
李娜娜 +4 more
doaj
Shuitu Baochi Xuebao, 2020 通过田间试验，探明控释尿素输入对土壤无机氮变化及春玉米氮素吸收利用特性的影响，为宁夏南部山区氮肥高效利用及玉米高产提供理论依据和技术支撑。以"先玉698"为供试材料，在等氮量（225 kg/hm2）条件下，以不施氮为对照（CK），设置UR（100%普通尿素，2/3基施，1/3小喇叭口期追施）、CRU1（1/3控释尿素+1/3普通尿素基施，1/3普通尿素小喇叭口期追施）、CRU2（2/3控释尿素+1/3普通尿素一次基施）、CRU3（100%控释尿素基施）4种施氮模式，探明控释尿素输入对土壤无机氮分布 ...
王浩 +4 more
doaj
Effects of Planting Density on Starch Particle Size Distribution and Pasting Properties of Maize Kernels along Huaihe River [PDF]
The effects of different planting densities on the particle size distribution and pasting properties of starch granules in maize grains along the Huaihe River were analyzed.
CHENG Jia-hui +4 more
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Shuitu Baochi Xuebao, 2005 三峡库区春玉米盆栽水肥耦合试验研究结果表明，水分胁迫导致玉米株高和叶面积指数降低，以拔节期受到影响最大；玉米产量与生物量呈显著正相关关系，产量与根重无显著正相关关系；水氮耦合效应显著，适宜水分和中氮处理下玉米的产量最高，玉米生长发育对氮肥的吸收存在一定的阈值，过多施用氮肥会加剧土壤干旱和作物干旱，水和钾耦合效应对玉米产量影响不显著；水分是影响玉米产量的主导因素，其次是氮效应和钾效应。
吕刚 史东梅
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