Effects of Different Drip Irrigation Rates on Root Distribution Characteristics and Yield of Cotton under Mulch-Free Cultivation in Southern Xinjiang DOI Open Access

Yanan Wan,

Wenjun Li, Jichuan Wang

et al.

Water, Journal Year: 2024, Volume and Issue: 16(8), P. 1148 - 1148

Published: April 18, 2024

In order to study the effects of different irrigation amounts on root characteristics and yield cotton without film mulching (abbreviated as filmless cotton) under drip in Southern Xinjiang, five (300, 375, 450, 525 600 mm, represented by W1, W2, W3, W4 W5) one amount with filmed (450 WCK) were set. The length density (RLD), surface area (RSA), average diameter (RAD), volume (RV), weight (RED) analyzed. results two-year experiment showed following: (1) indexes growth reached maximum at flowering bolling stage, soil periphery (30 cm from main root) lower layer (40–60 layer) peak stages, respectively; (2) value index film-free each treatment was W2 > W3 W5 W1. RLD increased 19.41–106.67% 13.66–84.22% peripheral layer, proportion RSA middle (20–40 1.64–3.41% 0.49–4.09% compared other treatments. RAD, RV RWD after relatively large various distribution points soil, followed treatment; (3) WCK not significantly those but smallest, only 29.18–66.84% non-film treatment, while (0–20 surrounding larger, an increase 11.43–102.17% 29.60–111.57%, respectively, (4) seed highest reaching 4833.25 kg·hm−2, still than that 27.79%. Conclusion: An appropriate water deficit is conducive increases uniformity its layer. 375–450 mm for Xinjiang can promote growth, prevent senescence yield, which be used a reference production.

Language: Английский

Effects of tillage practices on water storage and soil conservation in red soil slope farmland in Southern China DOI Creative Commons
Jianxing Li, Keyu Yan, Qingsong Duan

et al.

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Nov. 20, 2024

Under the current conditions of global climate change, many unreasonable tillage practices exacerbate soil erosion and seasonal drought in agriculture. The red slope farmland makes up a significant portion agricultural land southern China. It is crucial to enhance water storage conservation effects (WSE) by adopting appropriate agronomic on farmland, which ensures regional agriculture's sustainable development. Therefore, this study employed combination experimental plot positioning observations artificially simulated rainfall experiments analyze WSE four practices: Conventional (CT), Downslope ridge (DT), Cross-slope (RT), Plastic Mulching (PM). This proposed optimal based comprehensive evaluation their effects. results indicate that there interaction (p < 0.05) between growth stages retention infiltration characteristics. same stage conditions, PM can reduce bulk density 0.03–14.29% increase temperature, moisture content, total porosity 4.00–6.67%, 0.68–18.23%, 1.30–13.47% 0.05), respectively, demonstrating best capabilities among practices. However, during rainfall-runoff process, surface runoff amount (SRA) generated DT accounts for 68.15% 90.83% runoff, detrimental rainfall. Both exhibit poor resistance demonstrate low effect index (WSEI) values 0.38 0.33, respectively. Secondly, RT's SRA constitutes only 9.42% beneficial increasing cumulative (CIA) Among three practices, namely RT, DT, CT, RT demonstrates strong capabilities. significantly kinetic energy erosion, resistance, highest WSEI 0.84. Furthermore, CT exhibits moderate 0.75. In summary, from perspective WSEI, practice should be prioritized promotion cultivation process farmland. Our research provide scientific basis constructing mode improving China's

Language: Английский

Citations

3
Effects of Different Irrigation Regimes on Root Growth and Physiological Characteristics of Mulch-Free Cotton in Southern Xinjiang DOI Creative Commons

Feiyan Su,

Zhe Guo,

Bingrong Wu

et al.

Life, Journal Year: 2025, Volume and Issue: 15(3), P. 435 - 435

Published: March 10, 2025

In order to explore the effects of different irrigation methods on physiological characteristics mulch-free cotton in southern Xinjiang, following experiments were carried out: (1) Different amount test: 300, 375, 450, 525, and 600 mm (represented by W1, W2, W3, W4, W5) a control (450 for film-covered cotton, represented WCK) set. (2) Drip frequency drip 12, 10, 8, 6 times during growth period (expressed P12, P10, P8, P6). Soil water dynamics, root distribution chlorophyll fluorescence, leaf area index (LAI), SPAD (chlorophyll density), stress enzyme activities, MDA (malondialdehyde) content observed. The results showed that average maximum change range soil field without film mulching was ±17.7%, which 1.35 higher than with mulching. Compared mulching, surface (0–20 cm) periphery (30 cm from main root) decreased 33.55–74.48% 14.07–102.18%, respectively, while deep layer (40–60 increased 49.62–242.67%, its green fluorescence parameters 9.03–50.44%, activities protective enzymes (SOD: superoxide dismutase, POD: peroxidase) 3.36–3.58%, value 5.55%, 3.17%, indicating reduced function leaves, yield 42.07%. treatments, indexes W2 > W3 W4 W5 W1 P12 P10 P8 P6, there little difference between P10. With increase frequency, initial (F0) leaves each downward trend, (Fm), variable (FV), photochemical efficiency (FV/Fm), potential activity PS II (FV/F0), electron transfer (Fm/F0), photosynthetic performance (PIABS) an upward trend. all had highest value, activity, lowest content, significantly other treatments except not significant, but significant W1. test no We find treatment, indicators relatively high. It can be concluded has certain impact function. When is 450–525 10–12, it beneficial promoting plays role function, use (WUE) high, provide reference scientific management production practice.

Language: Английский

Citations

0
Long-term mulched drip irrigation enhances cotton yield by improving soil quality, microbial community structure, and N conversion DOI Creative Commons
Wenhao Li,

Shuanglong Gao,

Wenying Qu

et al.

Agricultural Water Management, Journal Year: 2025, Volume and Issue: 314, P. 109527 - 109527

Published: May 5, 2025

Language: Английский

Citations

0
Contribution of silicon fertilizer to soil and growth of Pak choi under reclaimed and brackish water cycling irrigation DOI Creative Commons
Jieru Zhao, Bingjian Cui,

Juan Wang

et al.

PLoS ONE, Journal Year: 2025, Volume and Issue: 20(5), P. e0322846 - e0322846

Published: May 7, 2025

Rational utilization and improvement of agricultural water resources has been is still the focus research on developing efficient green agriculture in various countries. Thus, exploitation usage non-traditional hold substantial significance management sustainable agriculture. However, their reuse may induce secondary soil salinization impose stress crops. To address challenges salinity plant under brackish-reclaimed irrigation, this study aimed to investigate effects silicon (Si) fertilizer application properties Pak choi ( Brassica rapa L.) performance two cycling irrigation sequences (RW-BW RW-RW-BW) three spraying frequencies (0-, 2-, 4-day intervals). The findings displayed that pH each treatment (7.95-8.10) remained below 8.5, suggesting no risk alkalization. At same frequency fertilizer, electrical conductivity (EC) significantly decreased with increasing times reclaimed water. Silicon improved structure reduced sodium levels, alleviating salinity. interval provoked diminution SAR ESP, before rising again. But they were far threshold range, there was (15% 13 mM 1/2 ). total content leaves increased different conditions. Spraying crop leaf surface did not influence soil. In conclusion, Si-fertilizer beneficially impacts physicochemical development mitigates for irrigation.

Language: Английский

Citations

0
Effects of water-saving irrigation on microbial community structures, assembly, and metabolic activities in alfalfa rhizosphere soils DOI
Feng Ding,

Shun Ji,

Renna Sa

et al.

International Microbiology, Journal Year: 2025, Volume and Issue: unknown

Published: May 9, 2025

Language: Английский

Citations

0
What should we do for water security? A technical review on more yield per water drop DOI

Shah Jahan Leghari,

Wenting Han,

Kelin Hu

et al.

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 370, P. 122832 - 122832

Published: Oct. 12, 2024

Language: Английский

Citations

3
Mixed irrigation affects the composition and diversity of the soil bacterial community DOI Creative Commons
Jieru Zhao, Juan Wang, Bingjian Cui

et al.

Open Geosciences, Journal Year: 2024, Volume and Issue: 16(1)

Published: Jan. 1, 2024

Abstract Water resource shortage has become an important factor limiting agricultural sustainability in China. In addition, the development and utilization of unconventional water resources are greatly for alleviating deficit. The Pakchoi was cultivated by using surface soil (0–20 cm) from field this pot experiment. experiment lasted approximately 1 month to study microbial community structure variation under brackish reclaimed irrigation. 16S rDNA high-throughput assays revealed that bacteria mainly consisted Proteobacteria Actinobacteria at Phylum level, along with Arenimonas Nocardioides Genus level mixed irrigation water. summary, pure promoted part communities inhibited growth activities certain communities. We found improved diversity compared response irrigation, while decreased fresh

Language: Английский

Citations

2
Isolation and Characterization of Potassium-Solubilizing Rhizobacteria (KSR) Promoting Cotton Growth in Saline–Sodic Regions DOI Creative Commons

Yue Zhao,

Hongbang Liang,

Jihong Zhang

et al.

Microorganisms, Journal Year: 2024, Volume and Issue: 12(7), P. 1474 - 1474

Published: July 19, 2024

Cotton is highly sensitive to potassium, and Xinjiang, China’s leading cotton-producing region, faces a severe challenge due reduced soil potassium availability. Biofertilizers, particularly potassium-solubilizing rhizobacteria (KSR), convert insoluble into plant-usable forms, offering sustainable solution for evergreen agriculture. This study isolated characterized KSR from cotton, elucidated their solubilization mechanisms, evaluated the effects of inoculating strains on cotton seedlings. Twenty-three were rhizosphere using modified Aleksandrov medium. Their solubilizing capacities assessed in liquid Strain A10 exhibited highest capacity (21.8 ppm) by secreting organic acids such as lactic, citric, acetic, succinic acid, lowering pH facilitating release. A growth curve analysis tests under alkali stress showed its vigorous maintained ability at 8–9, with significant inhibition 10. Furthermore, 16S rRNA sequencing identified strain Pseudomonas aeruginosa. Greenhouse pot experiments that plants significantly increased plant height promoted root growth. inoculation also enhanced dry biomass accumulation both aerial parts systems plants, while reducing root–shoot ratio. These results suggest aeruginosa has potential biofertilizer, new strategy

Language: Английский

Citations

2
Field-grown lettuce production optimized through precision irrigation water management using soil moisture-based capacitance sensors and biodegradable soil mulching DOI Creative Commons

Haytham S. Helmy,

Mohamed E. Abuarab, Emad A. Abdeldaym

et al.

Irrigation Science, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 2, 2024

Abstract Scientists, environmentalists, and farmers are currently in pursuit of sustainable agricultural practices that can effectively ensure global food security while simultaneously mitigating environmental degradation. A field experiment was conducted to elucidate the impact low-cost capacitance soil moisture-based sensors on lettuce ( Lactuca sativa L.) irrigation water conservation, agro-physiological aspects, nutritional characteristics. The also involved use five different types mulching films: white geotextile (WGup), green (GGup), black plastic (BPup), for both above below ground (WGup-down), (GGup-down), addition un-mulched (control). findings demonstrated application WGup, BPup, WGup&down, GGup&down resulted a significant improvement with WGup exhibiting highest savings at 41.86%, control group exhibited least amount 19.87%. Moreover, productivity levels were observed plants mulched GGup&down, reaching 47,944.68 kg ha −1 , whereas lowest recorded GGup 22,377.89 . In terms (IWP), order effectiveness BPup > GGup-down WGup-down Control, achieving IWP 60.19 m −3 treatment reporting 27.80 percentage applied crop evapotranspiration (Irc) showed saved water, saving only 19.87%, best achieved 41.86%. Additionally, higher nutrients (N, P, Ca, Mg, Fe, Mn, Zn), ascorbic acid (AsA), total phenol content (TPC), showing lower nitrate leaves compared non-mulched plants. Overall, utilization biodegradable films has proven be highly effective low cost by 16.633 US$ year enhance productivity, growth performance, quality, overall crops, thereby contributing sustainability production arid regions.

Language: Английский

Citations

2
Response of Soil Nitrogen Components and nirK- and nirS-Type Denitrifying Bacterial Community Structures to Drip Irrigation Systems in the Semi-Arid Area of Northeast China DOI Creative Commons

Ruowen Qiang,

Meng Wang, Qian Li

et al.

Agronomy, Journal Year: 2024, Volume and Issue: 14(3), P. 577 - 577

Published: March 14, 2024

Denitrification is a key process in soil available nitrogen (N) loss. However, the effects of different water-saving irrigation systems on N components and denitrifying bacterial communities are still unclear. In this study, quantitative fluorescence PCR Illumina MiSeq sequencing were used to investigate three main systems, conventional flooding (FP), shallow buried drip (DI), mulched (MF), abundance, community composition, diversity nirK- nirS-type bacteria semi-arid area Northeast China, clarify driving factors variations. The results showed that, compared with FP, MF significantly increased moisture, alkaline hydrolyzed (AHN), nitrate (NO3−-N), non-acid (AIN), amino sugar (ASN), but decreased contents ammonium (NH4+-N) acid (AN). system changed relative abundance dominant genera bacteria, DI reductase (NR) nitrite (NiR) activities, richness. structure was among systems. NO3−-N factor affecting moisture affected nirK-type bacteria. also ratio nirS/nirK genes. Therefore, although microorganisms, they did not lead an increase N2O emission potential.

Language: Английский

Citations

1