Optimizing Phosphatic Fertilizer Drip Timing to Improve Cotton Yield in Saline–Alkali Soil and Mitigate Phosphorus–Calcium Binding Risks

Agronomy, Journal Year: 2025, Volume and Issue: 15(1), P. 138 - 138

Published: Jan. 8, 2025

To improve cotton yield in salinized arid fields, excess salt is removed and phosphorus content increased. Adjusting phosphate fertilizer timing with water reduces binding calcium ions. Salt removal precedes application, enhancing soil availability promoting better growth. However, the optimal time for delaying drip irrigation remains unclear. Therefore, this study evaluated total salt, available phosphorus, under condition of delayed application. We conducted a field experiment using completely randomized design to adjust phosphatic application apply same amount pure phosphorus. Specifically, “t” was defined as duration one cycle, starting points were follows: T1, 1 h; T2, h + 1/3 t T3, 2/3 CK, h. These values represent leaching through each treatment. Phosphate applied after washing complete. The results revealed that T2 treatment exhibited highest SPAD value (64.53), which 11.46% 15.48% higher than T1 T3 treatments. 0–20 20–40 cm layers had pH 9.12 9.37, representing increases 1.93%, 1.21%, 4.50%, 1.38% compared treatments, respectively (p < 0.05). At bud stage, Olsen-P 82.86% 26.53% achieved 6492.09 kg/hm2, 31.47%, 31.53%, 2.77% CK. Overall, increased reduced adsorption ions soil. This provides an effective technical approach sustainable development fields Xinjiang.

Language: Английский

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Maintaining Silage Corn Production Under Sodic Irrigation Water Conditions in a Semi-Arid Environment

Agronomy, Journal Year: 2025, Volume and Issue: 15(2), P. 400 - 400

Published: Feb. 3, 2025

The Zayandeh-Rud watershed of Iran has had water scarcity for decades, giving rise to pressures toward limiting allocation the agriculture sector. Marginal waters can be an alternative source irrigated in water-scarce regions if adequately managed. One critical hazards sustainable and environment is accumulated salinity–sodicity problem as a consequence irrigating with unconventional waters. Applying additional beyond crop requirement, known leaching application, been suggested solution this problem. A physical model was built investigate effects severe sodicity salinity conditions irrigation by creating 250 mm diameter soil columns (27 columns) filled sandy clay loam soil. severity water’s (sodium adsorption ratios (SAR): 5.27, 16.56, 28.57) its interactions various fractions (0%, 15%, 30%) on chemical characteristics corn yield were studied. Implementing 30% fraction reduced SAR soil’s first layer (0–10 cm) when saline–hyper-sodic (SAR = 28.57 ECiw 9 dS/m). However, elevated level accumulation profile observed, emphasizing importance adding calcium magnesium amendments during season. noticeable increase efficiency applications reducing salts rootzone detected higher levels sodicity. reduction sodium due implementing resulted 223.3% total biomass silage corn. also increased 58% 114.56% 5.57 16.56 values. effectiveness 15% enhancing significantly lower than that fraction. Nevertheless, case unavailability sufficient supply purposes, applying could mitigate consequences sodic irrigation. results demonstrate absence proper amendments, implementation management still effective production under conditions.

Language: Английский

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Effects of leaching amounts and drip irrigation types on water-salt distribution and seed cotton yield in northern Xinjiang, China

Field Crops Research, Journal Year: 2025, Volume and Issue: 328, P. 109947 - 109947

Published: May 1, 2025

Language: Английский

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Effects of Soil Salinity on Rice Production and Technical Efficiency: Evidence from the Northern Coastal Region of Central Java, Indonesia

Case Studies in Chemical and Environmental Engineering, Journal Year: 2024, Volume and Issue: 10, P. 101010 - 101010

Published: Nov. 7, 2024

Language: Английский

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