Article
Soil Science
Xianghao Hou, Youzhen Xiang, Junliang Fan, Fucang Zhang, Wenhui Hu, Fulai Yan, Chao Xiao, Yuepeng Li, Houliang Cheng, Zhijun Li
Summary: In addition to water scarcity, the sustainable development of agriculture in arid and semi-arid regions of China is also constrained by soil salinization. This study aimed to investigate the spatial distribution and variability of soil salinity in drip-irrigated cotton fields under different irrigation levels in northwest China. The results showed that irrigation amount significantly influenced the distribution of soil salinity, with increased irrigation reducing total dissolved solids (TDS) in the soil but increasing the area of the desalination zone and the depth of salt accumulation. The variability of soil salinity was affected by irrigation amount, growth stage, and soil depth, with the largest spatial variability occurring in the middle growth stage of cotton.
SOIL & TILLAGE RESEARCH
(2022)
Article
Environmental Sciences
Jinping Feng, Hongguang Liu, Gang Wang, Rumeng Tian, Minghai Cao, Zhentao Bai, Tianming He
Summary: Winter irrigation is an effective method for reducing soil salinity, but the long-term effects may vary among different soil types. After several years of application, soil salinity tends to stabilize at a lower level. Different types of soil show varying degrees of desalination effects after winter irrigation, with significant improvements observed after several years.
Article
Environmental Sciences
Zhentao Bai, Hongguang Liu, Tangang Wang, Ping Gong, Huiqin Li, Ling Li, Bao Xue, Minghai Cao, Jinping Feng, Yibin Xu
Summary: Smashing ridge tillage can reduce soil bulk density, improve soil water utilization, and decrease soil salt content. With increasing depth of smashing ridge tillage, cotton dry matter production and yield tend to increase, with treatment C achieving the highest dry matter production, seed cotton yield, effective bolls, and 100-boll weight.
Article
Plant Sciences
Pingru He, Jingang Li, Shuang'en Yu, Tao Ma, Jihui Ding, Fucang Zhang, Kaiwen Chen, Shuaishuai Guo, Suhan Peng
Summary: Water deficiency and soil salinization have long been hindering sustainable agriculture globally. Optimizing soil moisture regulation is beneficial for improving the soil water and salinity conditions for crops, thus promoting plant production. A field experiment in southern Xinjiang revealed that as the drip irrigation belt got farther away, the soil moisture decreased and the soil salinity increased. It was also observed that soil moisture and salinity increased and then decreased with soil depth after irrigation, following an elliptical distribution. Therefore, it is recommended to maintain a soil moisture lower limit of 75% FC for cotton cultivation in southern Xinjiang.
Article
Agronomy
Ying Wang, Wenjuan Shi, Bo Jing
Summary: The study aimed to determine the optimal combination of brackish irrigation water and nitrogen application in the mulched drip irrigation system for cotton crops in Xinjiang. The results showed that the irrigation amount, nitrogen application level, and their interaction significantly affected soil salt accumulation, cotton growth and yield, nitrogen uptake and fertilizer productivity, and water productivity. The I2N2 treatment was found to be the optimal water and nitrogen management strategy for cotton planting under mulched drip irrigation.
FIELD CROPS RESEARCH
(2023)
Article
Agronomy
Wenhao Li, Zhenhua Wang, Jinzhu Zhang, Ningning Liu
Summary: The long-term use of MDI can significantly improve the salt distribution in cotton fields, reduce soil salinity, and increase cotton survival rate and yield.
Article
Agronomy
Yuhui Yang, Dongwei Li, Weixiong Huang, Xinguo Zhou, Zhaoyang Li, Xiaomei Dong, Xingpeng Wang
Summary: This study aimed to investigate the effects of subsurface drainage spacing on soil salinity and groundwater level. The results showed that subsurface drainage reduced soil salinity and effectively controlled the groundwater table. Decreasing the drain spacing further enhanced these effects.
Article
Agronomy
Chao Xiao, Qingyuan Ji, Fucang Zhang, Yi Li, Junliang Fan, Xianghao Hou, Fulai Yan, Xiaoqiang Liu, Kaiyuan Gong
Summary: As a vital cotton producing region, the arid and semi-arid region of northwest China has faced increasing scarcity of water resources and the need for more efficient irrigation methods. A two-year field experiment in Northern Xinjiang explored the effects of different soil water potential thresholds for drip irrigation on soil salinity, cotton growth, and seed cotton yield. The results showed that lower soil water potential thresholds reduced soil moisture, but also decreased soil salinity and controlled it below the root zone. A soil water potential threshold of -20 kPa was recommended for drip-irrigated cotton in Northern Xinjiang.
AGRICULTURAL WATER MANAGEMENT
(2023)
Article
Agricultural Engineering
Zhipeng Li, Sumei Wan, Guodong Chen, Yingchun Han, Yaping Lei, Yunzhen Ma, Shiwu Xiong, Tingyong Mao, Lu Feng, Guoping Wang, Xiaofei Li, Zhanbiao Wang, Xiaoyu Zhi, Yahui Jiao, Minghua Xin, Yabing Li, Beifang Yang
Summary: Non-film drip irrigation cotton planting can effectively address film pollution in arid areas and promote sustainable agriculture, but research on appropriate irrigation regimes and soil hydrothermal microenvironment is lacking. Using IoT sensors, we conducted a study with three different irrigation treatments. Results showed that increasing irrigation amounts significantly increased soil water content in the 50-110 cm soil layer. The W6 treatment had the highest soil temperature and effective accumulated temperature, leading to higher reproductive organ allocation rates. However, as irrigation amounts increased, water use efficiency decreased.
INDUSTRIAL CROPS AND PRODUCTS
(2023)
Article
Agronomy
Rui Zong, Yue Han, Mingdong Tan, Ruihan Zou, Zhenhua Wang
Summary: The study found that converting saline-alkali wasteland to cotton fields can decrease soil salinity and increase soil porosity, but freezing-thawing process can induce soil salinization, posing a potential risk to agricultural sustainability.
AGRICULTURAL WATER MANAGEMENT
(2022)
Article
Agronomy
He Wang, Di Feng, Anqi Zhang, Chunlian Zheng, Kejiang Li, Songrui Ning, Junpeng Zhang, Chitao Sun
Summary: The shortage of freshwater resources is a challenge for agricultural production in the North China Plain. A field experiment was conducted to investigate the effects of different salinities of irrigation water on the yield and soil quality of mulched drip-irrigated cotton. The results showed that salinity of irrigation water had a significant impact on cotton yield and soil quality.
AGRICULTURAL WATER MANAGEMENT
(2022)
Article
Agronomy
Tong Heng, Gary Feng, Li-Li Yang, Xin-Lin He, Guang Yang, Fa-Dong Li, Xuan Xu, Yue Feng
Summary: A 4-year MDI-SPD experiment in the Manas River Basin in western China showed that the system is effective in mitigating soil salinization through salt drainage and increased cotton yield. The electrical conductivity (EC) of subsurface pipe drainage was positively correlated with drainage flow and salt discharge.
Article
Agriculture, Multidisciplinary
Shuai Chen, Chaonan Song, Xiaomin Mao, Songhao Shang
Summary: Fresh water shortage and soil salinization are two crucial factors limiting agricultural development in arid areas. A study was conducted using an agro-hydrological model to simulate soil water and salt dynamics and crop growth in salinized croplands in Northwest China. The results provide valuable insights for sustainable crop production in salinized croplands.
COMPUTERS AND ELECTRONICS IN AGRICULTURE
(2022)
Article
Environmental Sciences
Haitao Wang, Jiandong Wang, Chuanjuan Wang, Shuji Wang, Xuefeng Qiu, Yuechao Sun, Guangyong Li
Summary: This study characterized and quantified the substances clogging emitters in a biogas slurry drip irrigation system. The clogging substances were primarily viscous agglomerations of 0.3-1.5 μm particles, formed through settlement with gravity, water pressure adhesion, and mobile biological adhesion. The dominant microbial communities in the clogging substances included Firmicutes and Proteobacteria. This research provides valuable insights for developing strategies to mitigate clogging in biogas slurry drip irrigation systems.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Agronomy
Jiangtao Wang, Gangfeng Du, Jingshan Tian, Chuangdao Jiang, Yali Zhang, Wangfeng Zhang
Summary: The study demonstrates that mulched drip irrigation can optimize the distribution of fine roots and enhance water uptake, thereby improving crop yield and irrigation water use efficiency by regulating soil water distribution and root distribution.
AGRICULTURAL WATER MANAGEMENT
(2021)