Effect of straw incorporation on soil moisture, evapotranspiration, and rainfall-use efficiency of maize under dryland farming

Wang, X.; Jia, Zh. K.; Liang, Lei

doi:10.2489/jswc.69.5.449

Cited by 20 publications

(16 citation statements)

References 34 publications

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“…Daily E differences between the two sites were a good indicator of how the different soil conditions affect the direct water losses from the soil surfaces. Similar to the previous studies, we found that during the oMGS rainfall events, the simulated E was suppressed by the residue cover layer at the no-till site compared to the bare and disturbed soils at the conventional tillage site (Salado-Navarro and Sinclair, 2009;van Donk and Klocke, 2012;Wang et al, 2014). This amount of reduced E at CAF-NT was mostly affected by rainfall frequency rather than rainfall amounts, which was also supported by van Donk et al (2010) where they found the different magnitude in E between residue-covered and bare soils increased during the infrequent and light rainfall events.…”

Section: Tillage Practice Effects On Annual Cropping Areasupporting

confidence: 89%

Carbon and Water Budgets in Multiple Wheat-Based Cropping Systems in the Inland Pacific Northwest US: Comparison of CropSyst Simulations with Eddy Covariance Measurements

et al. 2017

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Accurate carbon and water flux simulations for croplands are greatly dependent on high quality representation of management practices and meteorological conditions, which are key drivers of the surface-atmosphere exchange processes. Fourteen site-years of carbon and water fluxes were simulated using the CropSyst model over four agricultural sites in the inland Pacific Northwest (iPNW) US from October 1, 2011 to September 30, 2015. Model performance for field-scale net ecosystem exchange of CO 2 (NEE) and evapotranspiration (ET) was evaluated by comparing simulations with long-term eddy covariance measurements. The model captured the temporal variations of NEE and ET reasonably well with an overall r of 0.78 and 0.80, and a low RMSE of 1.82 g C m −2 d −1 and 0.84 mm d −1 for NEE and ET, respectively. The model slightly underestimated NEE and ET by 0.51 g C m −2 d −1 and 0.09 mm d −1 , respectively. ET simulations showed better agreement with eddy covariance measurements than NEE. The model performed much better for the sites with detailed initial conditions (e.g., SOC content) and management practice information (e.g., tillage type). The CropSyst results showed that the winter wheat fields could be annual net carbon sinks or close to neutral with the net ecosystem carbon balance (NECB) ranging from 92 to −17 g C m −2 , while the spring crop fields were net carbon sources or neutral with an annual NECB of −327 to −3 g C m −2 . Simulations for the paired tillage sites showed that the no-till site resulted in lower CO 2 emissions for the crop rotations of winter wheat-spring garbanzo, but had higher carbon loss into the atmosphere for spring canola compared to the conventional tillage site. Water budgets did not differ significantly between the two tillage systems. Winter wheat in the high-rainfall area had higher crop yields and water use efficiency but emitted larger amounts of CO 2 into the atmosphere than in the low-rainfall area. Based Chi et al.Agricultural Carbon and Water Budgets on model evaluations in this study, CropSyst appears promising as a tool to simulate field-scale carbon and water budgets and assess the effects of different management practices and local meteorological conditions for the wheat-based cropping systems in this region.

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Section: Tillage Practice Effects On Annual Cropping Areasupporting

confidence: 89%

Carbon and Water Budgets in Multiple Wheat-Based Cropping Systems in the Inland Pacific Northwest US: Comparison of CropSyst Simulations with Eddy Covariance Measurements

et al. 2017

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“…Soil fertility properties, including soil total nitrogen (N), total P and SOC (soil organic carbon), were measured according to (Wang, Jia, & Liang, ).…”

Section: Methodsmentioning

confidence: 99%

“…The available Fe, Zn and Mn concentrations were determined by microwave digestion-inductively coupled plasma emission spectrometry ICP-AES (ICP6300; Thermo Scientific) described by Li, Coles, Ramsey, and Thornton (1995). Soil fertility properties, including soil total nitrogen (N), total P and SOC (soil organic carbon), were measured according to (Wang, Jia, & Liang, 2014).…”

Section: Soil Physicochemical Properties Analysismentioning

confidence: 99%

Comparison of the hydrolysis characteristics of three polyphosphates and their effects on soil phosphorus and micronutrient availability

Wang

Gao

et al. 2019

Soil Use and Management

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Polyphosphate is an alternative phosphorus (P) source which can substitute for orthophosphate‐based P fertilizers in agriculture. In order to explore the effects of polyphosphate addition on soil P availability, and how pH and temperature affect polyphosphate hydrolysis, an aqueous and a soil incubation experiment were conducted at different pHs (5.0 and 8.2) and temperatures (15, 25 and 35°C); the influence of polyphosphate addition on soil available micronutrients (i.e., iron—Fe, manganese—Mn and zinc—Zn) was also studied. The experiments used three different polyphosphate fertilizers (solid and liquid ammonium polyphosphate and polyphosphoric acid) and two soil types (acid and alkaline). In aqueous incubation conditions, the average amount of phosphate (PO43−) released from polyphosphate fertilizers at 35°C was 2.7 times greater than at 25°C. The average Olsen P in polyphosphate‐treated soil at 35°C was 1.12 times greater than at 25°C, indicating that higher temperature facilitates polyphosphate hydrolysis. Polyphosphate hydrolysis increased as the pH decreased in aqueous solution, but its hydrolysis rate was greater in calcareous soil than in acid soil. Moreover, polyphosphate significantly increased soil available Fe, Mn and Zn concentrations by an average of 14%, 16% and 20%, respectively, relative to orthophosphate fertilizer. In summary, high temperature and low pH favour the hydrolysis of short‐chain polyphosphate (aqueous incubation experiment), and polyphosphate significantly increases soil P availability and mobilizes soil micronutrients. The application of polyphosphate can be recommended as a pragmatic P management strategy in agriculture: however, soil temperature and pH should be taken into account when using polyphosphate fertilizers.

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“…One way to use saline soils and water in desert area is to identify and use salt and drought tolerant plants [1] [2] [3] [4] [5]. Another strategy is use of hydrogels.…”

Section: Introductionmentioning

confidence: 99%

Impact of Some Amendments on Some Soil Properties and Plant Growth in Desert Area of Iran

Kianian¹,

Asgari²,

Bahadori³

2018

OJE

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Water availability and soil physicochemical properties are the most important factors for the establishment and growth of plant seedlings in arid and desert areas. Improving water use efficiency and soil properties are two major factors for sustainable development in these regions. Therefore, this research aimed to study the effectiveness of biological hydrogel (b), PLANTBAC vegetation layer (PB), sand (sa) and barley straw (st) with inter-row system on some soil properties, including N, Cl, Zn, Fe, clay, silt and sand percentages, and water use efficiency under the cultivation of Nitraria schoberi. This experiment was tested in a split plot design with 3 replications and 10 observations in 2015 during 2 years at Semnan province's Natural Resources Research Station. Data analysis was carried out in SAS software version 9.1.3. According to the results, the highest amount of Cl was obtained at non-micro catchment by straw and sand treatments, as well as at micro catchment by PB treatments. The highest amount of Zn was obtained at non-micro catchment by straw treatment (1.106). The results of mulch effect on Fe showed that four mulch treatments did not have significant difference with the control. Also, the highest amount of total N content was observed at micro catchment by hydrogel treatment. There was not any significant difference among environment and clay, silt and sand treatments and about plant establishment and, all four mulch treatments had significantly higher moisture content and establishment than the control. The results of mulch effect on water use efficiency showed that there was a significant difference between all four mulch treatments (P < 0.01

show abstract

Effect of straw incorporation on soil moisture, evapotranspiration, and rainfall-use efficiency of maize under dryland farming

Cited by 20 publications

References 34 publications

Carbon and Water Budgets in Multiple Wheat-Based Cropping Systems in the Inland Pacific Northwest US: Comparison of CropSyst Simulations with Eddy Covariance Measurements

Carbon and Water Budgets in Multiple Wheat-Based Cropping Systems in the Inland Pacific Northwest US: Comparison of CropSyst Simulations with Eddy Covariance Measurements

Comparison of the hydrolysis characteristics of three polyphosphates and their effects on soil phosphorus and micronutrient availability

Impact of Some Amendments on Some Soil Properties and Plant Growth in Desert Area of Iran

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