Effects of partial root-zone drying on alfalfa growth, yield and quality under subsurface drip irrigation

Wang, Yadong; Liu, Chun; Cui, Pengfei; Su, Derong

doi:10.1016/j.agwat.2020.106608

Cited by 30 publications

(25 citation statements)

References 57 publications

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“…In this study, we found that an appropriate amount of water and nitrogen fertilizer can increase the WUE of alfalfa under the condition of SDI and increase the hay yield, and too low or too high water and nitrogen fertilizer will adversely affect the WUE and hay yield of alfalfa. These were in consensus with Wang et al [59], who suggested that partial root-zone drying could be a promising technique for alfalfa production in the arid area of Northwest China, with improved crop water productivity and positive effect on quality characteristics.…”

Section: Effects Of Subsurface Drip Irrigation On Haysupporting

confidence: 85%

Effects of Subsurface Drip Irrigation on Water Consumption and Yields of Alfalfa under Different Water and Fertilizer Conditions

Cao

Feng

et al. 2021

Journal of Sensors

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A field experiment was conducted for the purpose of examining the effects of different combinations of water and fertilizer applications on the water consumption and yields of alfalfa under subsurface drip irrigation (SDI). The results showed that the jointing and branching stages were the key stages for alfalfa water requirement. The water consumption had varied greatly (from 130 to 170 mm) during the growth period of each alfalfa crop. The water consumption during the whole growth period was approximately 500 mm, and the maximum water consumption intensity was 3.64 mm·d-1. The overall changes in water consumption and yields during the growth period of the alfalfa displayed trends of first increasing and then decreasing. The sensitivities of the yields to water changes were much higher than that of fertilizer. The water use efficiency (WUE) of the alfalfa was determined to range from 1.68 to 3.20 kg·m-3, and the rate of growth had ranged from 4.85% to 51.77%. The WUE and rate of growth of the alfalfa indicated the following trend: second crop > third crop > first crop. The results of frequency analysis based on the water-nitrogen-yield regression equation are the following: irrigation amounts of 142~165 mm and nitrogen application of 61~80 kg·hm-2 have a 95% probability of obtaining a hay yield of alfalfa of more than 11903 kg·hm-2. These results suggest that SDI is a promising irrigation method, which can increase the WUE and hay yield of alfalfa under the condition of SDI within an appropriate amount of water and nitrogen fertilizer, and too low or too high water and nitrogen fertilizer will adversely affect the WUE and hay yield of alfalfa.

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Section: Effects Of Subsurface Drip Irrigation On Haysupporting

confidence: 85%

Effects of Subsurface Drip Irrigation on Water Consumption and Yields of Alfalfa under Different Water and Fertilizer Conditions

Cao

Feng

et al. 2021

Journal of Sensors

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“…The results showed that under the same irrigation method, APRI was more conducive to the overall quality of tomatoes, and the application of water/biogas slurry with hole irrigation could improve tomato quality when compared with surface irrigation. This is consistent with the relevant results obtained by Du et al [39] , Wang et al [40] , and by Zheng et al [11] . TOPSIS method has been proven to be a good evaluation method in agricultural production [10] .…”

Section: Discussionsupporting

confidence: 94%

Effects and evaluation of biogas slurry/water integrated irrigation technology on the growth, yield and quality of tomatoes

Zheng¹,

Qi²,

Yang³

et al. 2022

International Journal of Agricultural and Biological Engineering

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Reasonable techniques and methods in biogas slurry application are significant for the promotion of biogas slurry and the improvement of crop quality in agricultural production. To investigate the impacts of different biogas slurry application techniques on the water use efficiency, growth, yield, and quality of tomatoes, three irrigation techniques, and two application methods were considered in this study. The three irrigation techniques are alternate partial root-zone irrigation (APRI), fixed partial root-zone irrigation (FPRI), and two sides root-zone irrigation (TSRI). Two application methods refer to applying the biogas slurry with hole irrigation and surface irrigation. In addition, principal component analysis (PCA) and technique for order preference by similarity to ideal solution (TOPSIS) methods were adopted to evaluate the comprehensive quality and comprehensive indicators of tomatoes among different treatments. There are three hole irrigation treatments, T1 (APRI), T2 (TSRI), T3 (FPRI), and three surface irrigation treatments, T4 (APRI), T5 (TSRI), and T6 (FPRI) were set in two-season pot experiments. The results show that the plant height, dry matter accumulation, fruit yield, and water use efficiency present a similar descending trend for APRI, TSRI, and FPRI under the same methane irrigation method, yet show that the hole irrigation treatment was higher than the surface irrigation treatment for the same irrigation technique. These indicate that the coupling of APRI technique and hole irrigation is more conducive to the increase of plant production and water use efficiency. Meanwhile, T1 treatment can significantly improve the soluble sugar, sugar-acid ratio, VC content, soluble protein, soluble solid content, and firmness of tomato fruits, which are better for the taste, storage, and transportation of tomato fruit. The titratable acid content in tomato fruit is the highest in T2 treatment, followed by T5 treatment, indicating that TSRI technique may result in an accumulation of titratable acid and is not conducive to the taste of the tomato. The comprehensive nutritional quality and index evaluation results show that T1 treatment ranks the highest among all treatments, and can be used as an optimal irrigation method for the implementation of integrated water/biogas slurry.

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“…Different cutting times could change the growth process of alfalfa, leading to varied yield and quality among cuttings. Similar to the findings of many earlier studies, alfalfa PH and SLR had a consistent decreasing trend with the cutting times in this study [37,44]. In terms of yield, our result in 2019 was consistent with those results, while alfalfa yield was found slightly increasing with cutting times in 2018.…”

Section: Discussionsupporting

confidence: 92%

“…Su et al [36] found that the alfalfa PH and DM decreased as the NaCl concentration increased from 0 to 100 mM in a pot study. Wang et al [37] pointed out that water stress increased the CP and decreased the content of fiber in alfalfa. Moreover, Ferreira et al [9] indicated that salinity stress improved alfalfa quality by increasing CP content and decreasing ADF and NDF.…”

Section: Discussionmentioning

confidence: 99%

Root, Yield, and Quality of Alfalfa Affected by Soil Salinity in Northwest China

et al. 2023

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Growing crops in salt-affected soils has become increasingly important for sustainable development in arid and semi-arid regions. Knowledge on the responses of alfalfa root development, yield, and quality to soil salinity is critical for assessing the productivity and profitability of salt-affected soils. A field experiment with a total of six treatments combining three soil salinity levels and two biosolids fertilizer levels was conducted in 2018 and 2019 in northwest China. For salinity treatments, the salt addition rates were 2‰, 4‰, and 6‰ of 0–60 cm soil dry weight, while a commercial biosolids fertilizer was added at a rate of 0 and 1.5 Mg·ha−1 of 0–10 cm soil for biosolids treatment. Root parameters of root length (RL), surface area (RSA), diameter (RD), volume (RV), and dry matter (RDM) were obtained at the end of each year, while yield and quality parameters of crude protein (CP), acid detergent fiber (ADF), neutral detergent fiber (NDF) were measured for each cut of the two years. Most root parameters were significantly reduced by the highest soil salinity treatment in 2018, but not affected by salinity in 2019. Higher salinity treatments consistently led to lower plant height and yield, higher CP, and lower ADF and NDF in both years. The absolute slope value of the regression between yield of each cut with the respective soil salt content was smaller for the later cuts. The relationship between plant height and quality parameters varied depending on soil salinity levels and between the two years, and plant height was found to be a good predictor for alfalfa quality in 2019. Biosolids fertilizer had no significant effect on any alfalfa root, growth, or quality parameters. The results are expected to assist determining the proper soil salinity range, maximizing the productivity that takes both yield and quality into consideration.

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Effects of partial root-zone drying on alfalfa growth, yield and quality under subsurface drip irrigation

Cited by 30 publications

References 57 publications

Effects of Subsurface Drip Irrigation on Water Consumption and Yields of Alfalfa under Different Water and Fertilizer Conditions

Effects of Subsurface Drip Irrigation on Water Consumption and Yields of Alfalfa under Different Water and Fertilizer Conditions

Effects and evaluation of biogas slurry/water integrated irrigation technology on the growth, yield and quality of tomatoes

Root, Yield, and Quality of Alfalfa Affected by Soil Salinity in Northwest China

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