Partitioning of available energy in canopy and soil surface in croplands with different irrigation methods

Qin, Shujing; Fan, Yangzhen; Li, Sien; Cheng, Lei; Zhang, Lu; Xi, Hongyan; Qiu, Rangjian; Liu, Pan

doi:10.1016/j.agwat.2023.108475

Cited by 5 publications

(2 citation statements)

References 67 publications

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“…Although drip irrigation can evenly retain soil water and reduce soil salinity, the results of the present study showed that when the irrigation quota exceeded 270 m 3 hm −2 , the soil salt content showed an upward trend, and the desalting rate gradually decreased. This was due to the high adsorption ratio of soda salt and sodium, poor soil infiltration, and excessive irrigation water, resulting in the expansion and decomposition of soil particles, the closure of soil pores, and the obstruction of salt leaching [39]. Since straw and aluminum sulfate are long-term improvement measures, it was found that the soil salt content was inversely proportional to the planting years.…”

Section: Discussionmentioning

confidence: 99%

Decision of Straw Deep Burial and Aluminum Sulfate Drip Irrigation in Soda Saline Soil Based on Grey Relation Analysis and TOPSIS Coupling

Chen,

Yang,

Wen

et al. 2023

Agronomy

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To investigate the impact of combining aluminum sulfate with straw and irrigation water to enhance soil quality in soda saline–alkali soil, in this study a field experiment was conducted in Tongliao City, Inner Mongolia Autonomous Region, China. With beet IM1162 as the indicator crop, four levels of aluminum sulfate dosage (30, 60, 90, 120 g m−2) and four levels of drip irrigation water quota (225, 270, 315, 360 m3 ha−1) were set. The study examined the impact of varying levels of aluminum sulfate and irrigation water on soil water salt and crop yield. Next, using a comprehensive evaluation method, the optimal quantities of aluminum sulfate and irrigation water needed for effective soil improvement were determined. The research findings indicate that the most effective treatment (W2S3) involved an aluminum sulfate dosage of 90 g m−2 and an irrigation quota of 270 m3 ha−1. This treatment resulted in significant improvements compared to the control (CK) group. Specifically, in the 0–50 cm soil layer, the following improvements were observed: the water storage capacity (SWS) increased by 51.7%; evapotranspiration (ET) increased by 16.2%; water use efficiency (WUE) increased by 55.0%; and irrigation water use efficiency (IWUE) increased by 98.1% (p < 0.05). These results emphasize the importance of optimizing the combination of aluminum sulfate dosage and irrigation water quota to improve soil conditions and crop performance. It is worth nothing that this study highlights the potential for enhancing water use efficiency and crop yield in agricultural practices, which can contribute to sustainable and efficient farming practices. The study results revealed significant improvements in soil quality and crop yield when compared to the control group (CK). Specifically, in the 0–50 cm soil layer: the soil salt content decreased by 19.8%, soil pH increased by 8.7%, and exchangeable sodium percentage (ESP) decreased by 34.0%. Moreover, the crop yield in the treatment group increased significantly, by 32.1%. These findings indicate the positive impact of the intervention on soil health and agricultural productivity. The study employed the game theory combination weighting method to comprehensively evaluate soil water, salt, and various yield indicators. The results showed that the sustainability weight for crop yield reached 0.116, emphasizing the aim of soil improvement: the sustainable enhancement of crop yield. This approach underscores the importance of balanced soil management practices to ensure long-term agricultural productivity and environmental sustainability. The comprehensive evaluation results of grey relation analysis and the TOPSIS coupling model showed that the soil improvement effect score was the highest when the dosage of aluminum sulfate was 61.7–120.0 g m−2, and the irrigation quota was 250.4–319.4 m3 ha−1, which was the recommended range for the local area. The research findings discussed in the provided sources contribute to the theoretical basis for soil improvement in soda–saline–alkali land.

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Section: Discussionmentioning

confidence: 99%

Decision of Straw Deep Burial and Aluminum Sulfate Drip Irrigation in Soda Saline Soil Based on Grey Relation Analysis and TOPSIS Coupling

Chen,

Yang,

Wen

et al. 2023

Agronomy

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“…During the experimental period, four cabbage plants with consistent growth conditions were selected every 7-10 days to observe their canopy height, leaf area [37], and biomass. The canopy height and leaf area were measured using a tape measure with an accuracy of 0.1 mm, and the formula for estimating leaf area was referenced in reference [38]:…”

Section: Plant Observation Indicatorsmentioning

confidence: 99%

Driving Factors and Numerical Simulation of Evapotranspiration of a Typical Cabbage Agroecosystem in the Shiyang River Basin, Northwest China

Yang,

Yu,

et al. 2024

Agriculture

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Two years of field experiments were conducted at the National Field Observation Experiment Station for Efficient Agricultural Water Use in the Wuwei Oasis, Gansu Province. Based on the eddy correlation system, the evapotranspiration (ET) of the cabbage agroecosystem during the growth period was obtained and the main driving factors of ET changes were determined. The Root Zone Water Quality Model 2.0 version (RZWQM2 model) was used to simulate ET during the growth period. The results showed the following: (1) The ET of cabbage during the growth period was 260. 1 ± 24.2 mm, which was basically lower than other crops planted in this area. (2) Through partial correlation analysis and principal component analysis, it can be found that environmental and physiological factors jointly drive changes in ET. The main driving factors include gross primary productivity, net radiation, and water use efficiency. (3) The RZWQM2 model can simulate the ET of the cabbage agroecosystem well, especially in simulating the total ET value and its trend. The growth period ETs were 7.3% lower than the ETm. Cabbage is an important cash crop in Northwest China, and ET is an important component of the water cycle in the agroecosystem. Determining the main driving factors of ET is of great significance for the sustainable utilization of agricultural water resources in Northwest China. Our results can provide a scientific basis for the cultivation of cabbage as a cash crop and the development of water saving agriculture.

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Partitioning of Evapotranspiration and Crop Coefficients of Lentil Under Conserved Soil Moisture Conditions

Nandi,

Mudi,

Singh

et al. 2023

J Soil Sci Plant Nutr

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Partitioning of available energy in canopy and soil surface in croplands with different irrigation methods

Cited by 5 publications

References 67 publications

Decision of Straw Deep Burial and Aluminum Sulfate Drip Irrigation in Soda Saline Soil Based on Grey Relation Analysis and TOPSIS Coupling

Decision of Straw Deep Burial and Aluminum Sulfate Drip Irrigation in Soda Saline Soil Based on Grey Relation Analysis and TOPSIS Coupling

Driving Factors and Numerical Simulation of Evapotranspiration of a Typical Cabbage Agroecosystem in the Shiyang River Basin, Northwest China

Partitioning of Evapotranspiration and Crop Coefficients of Lentil Under Conserved Soil Moisture Conditions

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