Differentially improved soil microenvironment and seedling growth of Amorpha fruticosa by plastic, sand and straw mulching in a saline wasteland in northwest China

Liu, Tao; Wang, Baitian; Xiao, Hu; Wang, Ruoshui; Yang, Benman; Cao, Qiqi; Cao, Yuanbo

doi:10.1016/j.ecoleng.2018.07.030

Cited by 22 publications

(14 citation statements)

References 37 publications

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“…Precipitation during the maize growth period is not sufficient to leach soil salts in the HID, as the soil outside the mulch is usually severely salted after harvest. Thus, in order to avoid the further deterioration of the cultivated soil and reduce the damage caused by the salts supplied by irrigation, effective measures, such as extra fresh water irrigation in no-crop growth period, straw mulching on the top soil [49], and the application of chemical modifiers for optimizing soil structure [50], are required to maintain the interannual balance of soil salt.…”

Section: Discussionmentioning

confidence: 99%

Effects of Irrigation Water Salinity on Maize (Zea may L.) Emergence, Growth, Yield, Quality, and Soil Salt

Chen

Jiang

et al. 2019

Water

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Freshwater shortage is becoming one of the major limiting factors for the sustainable development of agriculture in arid and semi-arid areas of north China. A two-year field experiment about mulched drip irrigation on maize was conducted in Hetao Irrigation District with five irrigation water salinity levels (total dissolved solids; 1, 2, 3, 4, and 5 g·L−1). The effects of irrigation water salinity on maize emergence, growth, yield, grain quality, and soil salt were determined. The results indicated that with the soil matric potential of -20 kPa and irrigation quota for each application of 22.5 mm, the irrigation water salinity showed negative influence on maize emergence and maize morphological characteristics (plant height, leaf area index, stem diameter, and dry matter), as irrigation water salt concentrations exceeded 3 g·L−1. The water use efficiency decreased linearly with the irrigation water salinity raised from 1 g·L−1 to 5 g·L−1, while maize grain protein increased and starch content decreased with the increase of irrigation water salt contents. Additionally, both the vertical radius and horizontal radius of salt isoline by mulched drip irrigation reduced with the irrigation water salt concentrations, when the irrigation water salinity was above 3 g·L−1. Summarily, irrigation water salinity of 3 g·L−1 was recommended for maize mulched drip irrigation in this study.

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Section: Discussionmentioning

confidence: 99%

Effects of Irrigation Water Salinity on Maize (Zea may L.) Emergence, Growth, Yield, Quality, and Soil Salt

Chen

Jiang

et al. 2019

Water

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“…In our current experiments, six oat genotypes with different growth performance were grown at different salinity levels to test the stress effect on growth, gas exchange, ion accumulation, the activity of NR and GS, and the isotopic signatures of C and N. The selected genotypes have been cultivated locally. They exhibited similar plant phenology and different agronomic traits and growth performance under combined sandy and slightly saline field conditions [21].…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of the Effects of Salinity on Growth, Gas Exchange, N Accumulation and Stable Isotope Signatures of Forage Oat (Avena sativa L.) Genotypes

Shah

Yan

et al. 2020

Plants

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Identifying suitable salt stress-tolerant phenotypes based on their agronomic and physiological traits remains a herculean task in forage-type oat (Avena sativa L.) breeding. This study examined the responses of six forage-type oat cultivars under four levels of saline stress over the vegetative growth cycle. Crop growth, water status-related traits and nitrogen status-related traits were analyzed in different plant parts to evaluate effective approaches for identifying salt tolerance. Plant biomass, height, tiller number and culm thickness changed substantially during salinity, but they were not precise enough for use in estimating genotypic salinity tolerance during long-term stress. Genotypes bearing larger numbers of tillers showed greater sensitivity to salinity due to its effects on biomass loss. Tolerant genotypes exhibited higher relative shoot biomass together with higher water use efficiency. The concentrations of Na+, K+ and their ratio, combined with the δ13C in shoots and roots were effective indicators for estimating tolerant genotypes through better water maintenance. N concentrations of shoots were the most efficient for evaluating genotypic tolerance. Low nitrate reductase (NR) and glutamine synthetase (GS) activity might be key factors limiting N accumulation. Chlorophyll (Chl) content and net photosynthetic rate, as well as stomatal conductance and evaporation, were useful for identifying salinity tolerance physiological mechanisms, but the effectiveness was low for genotypic tolerance testing for forage type oats due to the interaction between genotypes and salinity levels. The selection of high salinity-tolerant genotypes should focus on genotypes with photosynthetic resilience to salt, followed by high N metabolism (higher NR and GS activities) to ensure accumulation of more N in the shoot dry matter.

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“…Additionally, the corresponding values of the BPF and PTW treatment increased by 3.97% and 2.91%, respectively, at an S of 15 cm and by 3.15% and 2.20%, respectively, at an S of 30 cm (Figure 3). The use of BPF or PTW mulching substantially limits the flux of water vapor from the soil surface into the air [23,24,45,46] . Although the purchase cost of BPF is high, it can be replaced by PTW, which is available at no additional cost.…”

Section: Effect Of Mulching Type On Soil Water Contentmentioning

confidence: 99%

Field study and regression modeling on soil water distribution with mulching and surface or subsurface drip irrigation systems

Mattar

Al‐Othman

Elansary

et al. 2021

International Journal of Agricultural and Biological Engineering

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The soil water status was investigated under soil surface mulching techniques and two drip line depths from the soil surface (D L ). These techniques were black plastic film (BPF), palm tree waste (PTW), and no mulching (NM) as the control treatment. The D L were 15 cm and 25 cm, with surface drip irrigation used as the control. The results indicated that both the BPF and PTW mulching enhanced the soil water retention capacity and there was about 6% water saving in subsurface drip irrigation, compared with NM. Furthermore, the water savings at a D L of 25 cm were lower (15-20 mm) than those at a D L of 15 cm (19-24 mm), whereas surface drip irrigation consumed more water. The distribution of soil water content (θ v ) for BPF and PTW were more useful than for NM. Hence, mulching the soil with PTW is recommended due to the lower costs and using a D L of 15 cm. The θ v values were derived using multiple linear regression (MLR) and multiple nonlinear regression (MNLR) models. Multiple regression analysis revealed the superiority of the MLR over the MNLR model, which in the training and testing processes had coefficients of correlation of 0.86 and 0.88, root mean square errors of 0.37 and 0.35, and indices of agreement of 0.99 and 0.93, respectively, over the MNLR model. Moreover, D L and spacing from the drip line had a significant effect on the estimation of θ v .

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Differentially improved soil microenvironment and seedling growth of Amorpha fruticosa by plastic, sand and straw mulching in a saline wasteland in northwest China

Cited by 22 publications

References 37 publications

Effects of Irrigation Water Salinity on Maize (Zea may L.) Emergence, Growth, Yield, Quality, and Soil Salt

Effects of Irrigation Water Salinity on Maize (Zea may L.) Emergence, Growth, Yield, Quality, and Soil Salt

Comparative Study of the Effects of Salinity on Growth, Gas Exchange, N Accumulation and Stable Isotope Signatures of Forage Oat (Avena sativa L.) Genotypes

Field study and regression modeling on soil water distribution with mulching and surface or subsurface drip irrigation systems

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