Effects of straw application on coastal saline topsoil salinity and wheat yield trend

Xie, Wenjun; Wu, Lei; Zhang, Yanpeng; Wu, Tao; Li, Xueping; Ouyang, Zhu

doi:10.1016/j.still.2017.01.007

Cited by 82 publications

(37 citation statements)

References 27 publications

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“…Since the total irrigation amounts in different treatments were designed at the same level (320 mm) for all treatments, the variations of ET were only dominated by SWD and DP according to Equation (5). As shown in Figure 3, the deviation of ET ( ET = SWD − DP) in 2017 as affected by straw incorporation was generally higher than the corresponding values in 2018, and the average value of ET among the five SIR levels under the SL condition was about 39.7% and 32.3% higher than it was under the SH condition in 2017 and 2018, respectively.…”

Section: Water Balance and Soil Moisturementioning

confidence: 99%

“…Since agricultural irrigation does not strictly rely on high-quality water, the application of some brackish water from shallow groundwater or from the mixing of seawater with fresh water in estuaries is encouraged to overcome fresh water supply shortages [1,2]. However, without adequate soil management for salt removal on naturally non-saline areas, excessive irrigation with brackish water can cause severe secondary soil salinization by depositing dissolved salts in the upper layer of the soil [3], which significantly threatens sustainable agricultural development and even causes land abandonment [4,5]. Nowadays, secondary soil salinization is not only especially problematic in arid and semi-arid areas where evaporation exceeds precipitation [6], but also increasingly common in Agronomy 2019, 9, 341 2 of 20 semi-humid and humid areas, due to freshwater resources being severely challenged by the continuous development of industrialization and urbanization [7,8].…”

Section: Introductionmentioning

confidence: 99%

“…Straw incorporation is regarded as a useful approach in saline soil amendment. Xie et al [5] observed that maize straw incorporation in coastal areas can prevent salt surface accumulation and led to a relatively constant salt level in the topsoil (0-20 cm). They also found that salt inhibition efficiency was much more significant in the early growth stages of wheat (seeding, jointing, and booting stage), and the sharp transient changes in salt content were significantly diminished when the straw incorporation rate was over 1 t ha −1 .…”

Section: Introductionmentioning

confidence: 99%

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Effect of Surface Straw Incorporation Rate on Water–Salt Balance and Maize Yield in Soil Subject to Secondary Salinization with Brackish Water Irrigation

Zhang

Sheng

et al. 2019

Agronomy

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Secondary salinization induced by brackish water irrigation has forced agricultural development to increasingly rely on soil management. A two-year field experiment was conducted to explore the effects of different straw incorporation rates (SIRs) within 0 to 20 cm topsoil on the soil water–salt balance, maize yield production, and water use efficiency (WUE) under brackish water irrigation in a naturally non-saline area. Air-dried wheat straw was applied at the rates of 0, 4.5, 9.0, 13.5, and 18.0 t ha−1 (R0–R4) and two salinity levels of irrigation water with the salt content of 1.92 dS m−1 (SL) and 3.20 dS m−1 (SH) were applied for simulating the scenarios of secondary salinization. Results demonstrated that straw incorporation markedly increased the soil water content during two growing seasons, and SIR was directly correlated to the deep percolation, but inversely correlated to the soil water depletion, under both the SL and SH condition. Meanwhile, straw incorporation led to the increase in salt content within the straw incorporation zone, but the total mass of salt deposited in the 0–100 cm soil profile was comparatively reduced as SIR increased due to the increased deep percolation for salt leaching, and such relative alleviation was more pronounced under the SH condition. The significantly increased maize yield and its corresponding WUE were obtained in treatments with high SIR levels. Additionally, an exponential function was used to describe the trend of the yield-increasing rate as SIR increased, and the theoretical maximum of grain and biomass yield calculated from the fitting results were 6483 in 17,282 kg ha−1 under SL, and 5440 and 14,501 kg ha−1 under SH, respectively. Results in this study would be helpful in the adoption of straw incorporation and brackish water irrigation in ways that facilitate soil water availability and reduce the risk of soil salinization.

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Section: Water Balance and Soil Moisturementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of Surface Straw Incorporation Rate on Water–Salt Balance and Maize Yield in Soil Subject to Secondary Salinization with Brackish Water Irrigation

Zhang

Sheng

et al. 2019

Agronomy

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“…Direct returning refers to the direct application of untreated straw into the field; indirect returning refers to the chemical treatment of straw and then returned to the field, including: high temperature composting, composting with decomposing agent, thermal cracking carbonization [2,3]. Numerous studies have shown that straw returning can improve soil fertility, soil physical structure and soil microbial community structure, and increase crop yield [4][5][6]. At present, there are many studies on the utilization of straw returning in saline-alkali soil treatment [7][8][9], but there are few studies comparing the effects of different straw returning methods on saline soil improvement [10].…”

Section: Introductionmentioning

confidence: 99%

Comparison of the effects of different maize straw returning methods on saline soil improvement

Cai

Yuan

2019

E3S Web Conf.

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Using corn straw as raw material, the effects of three different ways of returning corn straw to the field, namely direct returning corn straw to the field, decomposed corn straw returning to the field and maize straw biochar returning to the field, on saline-alkali soil were studied by indoor culture. The results showed that maize straw directly returned to the field was the best way to improve the stability of saline-alkali soil aggregates; maize straw biochar returned to the field was the best way to reduce the alkalinity of saline-alkali soil; maize straw directly returned to the field and decomposed maize straw returned to the field enhanced the activity of soil urease and alkaline phosphatase, while reducing the activity of soil catalase. Maize straw biochar returned to field reduced soil urease activity and increased soil catalase activity, but had no significant effect on soil alkaline phosphatase activity.

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“…Algunas prácticas pueden mejorar la productividad agrícola; por ejemplo, la incorporación de materiales orgánicos al suelo (Murphy, 2015;Putwattana et al, 2015;Woldetsadik et al, 2016;Xie et al, 2017). La aplicación de biocarbón (BC) ha sido propuesta como una opción de gran interés debido a sus benef icios en el suelo y cultivos Plaza et al, 2016;Trupiano et al, 2017).…”

Section: Introductionunclassified

Influencia del biocarbón aplicado al suelo sobre atributos de rendimiento y calidad de avena forrajera

Alberto

Reséndez

Carrillo

et al. 2018

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El suelo es un recurso imprescindible para la producción agrícola y, por lo tanto, requiere de condiciones adecuadas para favorecer una nutrición adecuada de los cultivos y generar mayores rendimientos. El biocarbón ha sido propuesto ampliamente para mejorar la calidad del suelo y la productividad de los cultivos. El objetivo del estudio fue evaluar los efectos del biocarbón sobre el rendimiento y calidad de la avena forrajera, en el periodo otoño-invierno 2016-2017. Un diseño de bloques al azar con cuatro repeticiones fue usado, el cual incluía tres tratamientos y un testigo: T0 = testigo absoluto; T1 = [fertilización convencional: (120‑60‑00 kg ha‑1)]; T2 = (2.25 Mg ha‑1 de biocarbón + fertilización convencional); T3 = (4 Mg ha-1 de biocarbón + fertilización convencional). El experimento se condujo en campo abierto con una densidad de siembra de 120 kg ha-1. Las variables evaluadas fueron: altura de planta (AP), materia verde (MV), materia seca (MS); f ibra detergente neutra (FDN), f ibra detergente ácida (FDA), proteína cruda (PC), nutrientes digestibles totales (NDT), digestibilidad de la materia seca (DMS). Los datos registrados se sometieron a análisis de varianza y las medias se compararon con la prueba de Tukey (P < 0.05). Diferencias estadísticas signif icativas (≤ 0.05) se observaron para AP y MV, donde T2 registró el mayor valor de 33 y 102%, respectivamente, frente al control. Se concluye que la aplicación de biocarbón influye positivamente sobre atributos de rendimiento de avena forrajera. Sin embargo, se deben realizar estudios más detallados, considerando condiciones distintas al presente estudio.

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Effects of straw application on coastal saline topsoil salinity and wheat yield trend

Cited by 82 publications

References 27 publications

Effect of Surface Straw Incorporation Rate on Water–Salt Balance and Maize Yield in Soil Subject to Secondary Salinization with Brackish Water Irrigation

Effect of Surface Straw Incorporation Rate on Water–Salt Balance and Maize Yield in Soil Subject to Secondary Salinization with Brackish Water Irrigation

Comparison of the effects of different maize straw returning methods on saline soil improvement

Influencia del biocarbón aplicado al suelo sobre atributos de rendimiento y calidad de avena forrajera

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