Salt Leaching with Brackish Water during Growing Season Improves Cotton Growth and Productivity, Water Use Efficiency and Soil Sustainability in Southern Xinjiang

Xiao, Chao; Li, Meng; Fan, Junliang; Zhang, Fucang; Li, Yi; Cheng, Hongyan; Li, Yuepeng; Hou, Xianghao; Chen, Junqing

doi:10.3390/w13182602

Cited by 15 publications

(6 citation statements)

References 39 publications

(50 reference statements)

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“…Moreover, the increase in irrigation frequency and decrease in irrigation amount for each application were conducive to preventing the upward rise of underground water [ 16 ]. It is obvious that the greater the irrigation amount, the deeper the leaching salt depth and the better the leaching effect [ 7 , 17 , 18 ]; however, the inconsistent irrigation amount and irrigation times regulated by soil moisture increase the difficulty in exploring the distribution of soil water and soil salt.…”

Section: Introductionmentioning

confidence: 99%

Soil Moisture Regulation under Mulched Drip Irrigation Influences the Soil Salt Distribution and Growth of Cotton in Southern Xinjiang, China

et al. 2023

Plants

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Water deficiency, together with soil salinization, has been seriously restricting sustainable agriculture around the globe for a long time. Optimal soil moisture regulation contributes to the amelioration of soil water and salinity for crops, which is favorable for plant production. A field experiment with five soil water lower limit levels (T1: 85% FC, T2: 75% FC, T3: 65% FC, T4: 55% FC, and T5: 45% FC, where FC is the field capacity) was conducted in southern Xinjiang in 2018 to investigate the responses of soil water–salt dynamics and cotton performance to soil moisture regulation strategies. The results indicated that in the horizontal direction, the farther away the drip irrigation belt, the lower the soil moisture content and the greater the soil salinity. In the vertical direction, the soil moisture and soil salinity increased first and then decreased with an increase in soil depth after irrigation, and the distribution was similar to an ellipse. Moreover, the humid perimeter of soil water and the leaching range of soil salt increased with a decrease in the soil moisture lower limit. Though more soil salt was leached out for the T5 treatment at the flowering stage due to the higher single irrigation amount, soil salinity increased again at the boll setting stage owing to the long irrigation interval. After the cotton was harvested, soil salt accumulated in the 0–100 cm layer and the accumulation amount followed T3 > T5 > T1 > T2 > T4. Moreover, with a decline of soil moisture lower limit, both plant height and nitrogen uptake decreased significantly while the shoot–root ratio increased. Compared with the yield (7233.2 kg·hm−2) and water use efficiency (WUE, 1.27 kg·m−3) of the T1 treatment, the yield for the T2 treatment only decreased by 1.21%, while the WUE increased by 10.24%. Synthetically, considering the cotton yield, water–nitrogen use efficiency, and soil salt accumulation, the soil moisture lower limit of 75% FC is recommended for cotton cultivation in southern Xinjiang, China.

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Section: Introductionmentioning

confidence: 99%

Soil Moisture Regulation under Mulched Drip Irrigation Influences the Soil Salt Distribution and Growth of Cotton in Southern Xinjiang, China

et al. 2023

Plants

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“…Agriculture crops cannot tolerate high salt concentrations; only halophytes can tolerate sodium chloride levels greater than 400 mM (Brengi et al, 2022). The physiology and molecular processes of resistance to the osmotic and ionic aspects of saltwater stress have been studied at the level of the cellular, organs, and whole plant (Xiao et al, 2021). In reaction to salt, plants go through two growth phases: (1) a quick osmosis phase that restricts the growth of young leaves, and a delayed, as well as, (2) ionic phase that causes older leaves to age biologically more quickly (Irakoze et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

EXOGENOUS APPLICATION OF ARGININE ALLEVIATES THE ADVERSE EFFECTS OF NaCl-SALT STRESS ON CALENDULA OFFICINALIS L. PLANTS

Youusef,

Adawy

2023

Scient. J. of Flowers and Ornament. Plants

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Salinity is one of several climate change impacts. Salinity in the water and soil has a negative effect on the growth and productivity of horticultural crops. Arginine has surfaced as a non-toxic plant growth governor that augments the resistance of plants to salt stress. Our objective was to assess the effects of exogenous foliar application of arginine on growth, yield, osmoprotectants and biochemical traits, as well as an antioxidant system of NaCl saltstressed pot marigold plants. Two successive (2020/2021-2021/2022) pot trials were conducted using four NaCl salt concentrations (50, 100, 150 mM, plus control; non-NaCl salt) combined with three arginine levels (3, 6 mM, plus control; non-arginine sprayed plants). Higher NaCl salinity concentration showed a significant decrease in plant growth, yield, leaf total chlorophylls, and nutritional status, while exhibiting a substantial increase in Na + , Cl -, osmoprotectants and biochemical constituents, in addition to antioxidant activity. Exposing plants to 150 mM of NaCl salt decreased herb dry weight by 34.7%, No. of inflorescences by 30.4%, but increased Na content by 200.7%, Cl by 36.7%, and proline by 216.3% compared to control. Nevertheless, the foliar arginine application enhanced growth, yield, and antioxidant activity. Higher arginine treatment (6 mM) increased flower contents of total carotenoids by 3.67%, phenolics by 8.77%, flavonoids by 11.8%, DPPH by 5.25%, and 13.6% accumulation of free amino acids in leaves compared to untreated plants. Finally, exogenous arginine treatment had a mighty potential to encounter the effects of NaCl salt stress on pot marigold plants.

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“…Due to the high yield and good quality of its produced cotton, southern Xinjiang has become the largest production base for cotton in China [1]. However, the shortage of irrigation water resources [2], secondary salinization of cultivated land [3] and low utilization rate of irrigation water and fertilizer [4] have seriously restricted the sustainable development of cotton planting. Thus, it is necessary to study the proper mulched drip irrigation mode for cotton cultivation in southern Xinjiang, China.…”

Section: Introductionmentioning

confidence: 99%

Effects of Soil Water Regulation on the Cotton Yield, Fiber Quality and Soil Salt Accumulation under Mulched Drip Irrigation in Southern Xinjiang, China

Zhang

et al. 2022

Agronomy

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To optimize suitable water-saving and soil salt-controlling irrigation needed for the high yield and good quality of cotton in southern Xinjiang, a field experiment was carried out to study the effects of soil water lower limits on water consumption, water use efficiency (WUE), yield, cotton fiber quality and soil salt accumulation under mulched drip irrigation in Korla, Xinjiang. The field capacity (FC) was regarded as the upper limit of soil moisture, and five soil water lower limits (85% FC, 75% FC, 65% FC, 55% FC, 45% FC, referred as T1⁓T5, respectively) were designed during the cotton growth period. The results indicated that the irrigation frequency and irrigation quota of cotton were gradually increased with the increase in the soil water lower limit, while the water consumption modulus for T2 treatment during the critical period of water demand arrived at the maximum value. Moreover, with the decrease in the soil water lower limit, the WUE, fiber micronaire value and fiber maturity index of cotton increased, whereas the yield, nitrogen partial factor productivity (PFPN) and fiber breaking elongation of cotton decreased. However, when the soil water lower limit exceeded 75% FC, the increase had little effect on the cotton yield increase and PFPN improvement, and the yield and PFPN for T2 treatment were 7146.4 kg∙hm−2 and 23.82 kg∙kg−1, respectively, In addition, the decrease in the soil water lower limit was unfavorable for an increase in fiber length, but it was conducive to the enhancement of fiber strength. Furthermore, soil salt accumulated inside and outside the film for the designed soil water lower limits, and the amount of accumulated salt in 0⁓100 cm followed T3 > T5 > T1 > T2 > T4. Based on a comprehensive analysis with the entropy TOPSIS method, the findings of the present study suggested that the suitable soil water lower limit for cotton under mulched drip irrigation was 75% FC in southern Xinjiang, China.

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Salt Leaching with Brackish Water during Growing Season Improves Cotton Growth and Productivity, Water Use Efficiency and Soil Sustainability in Southern Xinjiang

Cited by 15 publications

References 39 publications

Soil Moisture Regulation under Mulched Drip Irrigation Influences the Soil Salt Distribution and Growth of Cotton in Southern Xinjiang, China

Soil Moisture Regulation under Mulched Drip Irrigation Influences the Soil Salt Distribution and Growth of Cotton in Southern Xinjiang, China

EXOGENOUS APPLICATION OF ARGININE ALLEVIATES THE ADVERSE EFFECTS OF NaCl-SALT STRESS ON CALENDULA OFFICINALIS L. PLANTS

Effects of Soil Water Regulation on the Cotton Yield, Fiber Quality and Soil Salt Accumulation under Mulched Drip Irrigation in Southern Xinjiang, China

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