Generalization of the root length density distribution of cotton under film mulched drip irrigation

Ning, Songrui; Shi, Jianchu; Zuo, Qiting; Shu, Wang; Ben‐Gal, Alon

doi:10.1016/j.fcr.2015.03.012

Cited by 66 publications

(37 citation statements)

References 47 publications

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“…To address the problems caused by shortages of fresh water, lower quality (saline) waters are important irrigation water resources for overcoming drought and maintenance of crop yields [3,4] . The standard strategies for using marginal quality waters focused on avoiding reductions in the growth or yield of crops, while also aimed at preventing the excessive accumulation of soluble salts and maintaining the salinity level in the root zone [5][6][7][8] . However, achieving the maximum yield is frequently not the optimal strategy with respect to water productivity (WP), particularly where water resources are limited [9,10] .…”

Section: Introduction mentioning

confidence: 99%

Evaluation of irrigation water salinity and leaching fraction on the water productivity for crops

Ning

Zhou

Wang

et al. 2020

International Journal of Agricultural and Biological Engineering

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In arid and semi-arid irrigated croplands, the excessive accumulation of soluble salts in the root zone is an extensive problem that seriously limits crop yield and water productivity (WP). To avoid affects the yield potential of crops, the application of extra irrigation for leaching of excessive salts from the root zone was required. Quantitative knowledge of effects of the irrigation water salinity and leaching fraction (LF) on the relative yield (RY) and the unit water productivity of crop evapotranspiration (UWP ET) and the unit water productivity of irrigation water (UWP I) were becoming gradually important. This article provided theoretical models for estimating the UWPs (UWP ET and UWP I) and optimizing leaching fraction according to irrigation water salinity. In the present study, eight levels of irrigation water salinity (ECw = 0.25, 0.50, 0.75, 1, 2, 3, 4, and 5 dS/m) and 39 levels of LF values ranging from 0.04 to 0.80 were set and tested to assessing their effects on the RY and UWPs for four typical crops (barley, bean, wheat, and maize) with different salt tolerance levels. Almost every curve determined between the UWPs and LFs for the four crops had an inflection point. It was indicated that the UWP ET and UWP I could be maximized by optimizing the LF under different irrigation water salinities. Furthermore, the linear regression relationships were established to estimate the maximum values of UWPs and their corresponding optimal LFs for four crops by using the irrigation water salinity. Moreover, the theoretical models for estimating the UWPs were validated by data of wheat from previous literature, and the models could be suitable with acceptable relative errors when LFs ranging from 0.07 to 0.17.

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Section: Introduction mentioning

confidence: 99%

Evaluation of irrigation water salinity and leaching fraction on the water productivity for crops

Ning

Zhou

Wang

et al. 2020

International Journal of Agricultural and Biological Engineering

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“…Therefore, the root system in the SDI treatment suffered from less stress than the root systems in the BI treatment, in which the SWC fluctuated between water deficit conditions before irrigation and waterlogged conditions after irrigation, especially in the 0-0.3 m soil layer [14,55]. Secondly, the amount of irrigation in the SDI treatment was sufficiently low to prevent deep infiltration, reducing the loss of nutrients [13]. BI resulted in more rapid leaching of chemicals than SDI, which led to different nutrient distribution patterns and variations in the growth and profile distribution of roots [56,57].…”

Section: Effects Of Soil Water Movement On Root Development Of Transpmentioning

confidence: 99%

“…Lateral roots occupy the position of the taproot in the root system of transplanted cotton. According to studies examining the roots of direct-seeded cotton and the results of this study, the RLD of transplanted cotton is higher at soil depths of 0-0.3 m and lower at depths below 0.3 m than that of direct-seeded cotton [10,13].…”

Section: Root Characteristics Of Transplanted Cottonmentioning

confidence: 99%

“…The decrease in the cotton root weight was more significant in deeper soil layers, where there is an increase in soil moisture [12]. Ning et al [13] studied the root length density (RLD) of cotton under film mulched drip irrigation, and noted that most cotton roots were located near the soil surface (above 0.5 m) where water and nutrients were relatively sufficient, but salinity was minimal due to leaching under the high-frequency drip regime. Hodgson et al [14] compared the lengths of cotton roots under surface drip irrigation (SDI), buried drip irrigation and furrow irrigation systems in cracking grey clay in Australia and found significantly longer roots in the upper 30 cm of the soil when buried drip irrigation was used rather than SDI or furrow irrigation.…”

Section: Introductionmentioning

confidence: 99%

“…Direct-seeded cotton exhibits a typical taproot system, whereas transplanted cotton roots spread outward in the shape of a claw with approximately 2-3 dominant lateral roots [10]. Several studies examining cotton roots under different irrigation methods have focused on direct-seeded cotton roots [11][12][13][14][15][16][17]. Hulugalle et al [11] investigated the fine root (<2 mm diameter) production and mortality of cotton in furrow irrigation systems in Australia, and noted that cotton could not tolerate waterlogged conditions, so most of the fine roots were located in the top 0.5 m of the soil.…”

Section: Introductionmentioning

confidence: 99%

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Root Development of Transplanted Cotton and Simulation of Soil Water Movement under Different Irrigation Methods

Zhang

Liu

Sun

et al. 2017

Water

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Abstract:Winter wheat and cotton are the main crops grown on the North China Plain (NCP). Cotton is often transplanted after the winter wheat harvest to solve the competition for cultivated land between winter wheat and cotton, and to ensure that both crops can be harvested on the NCP. However, the root system of transplanted cotton is distorted due to the restrictions of the seedling aperture disk before transplanting. Therefore, the investigation of the deformed root distribution and water uptake in transplanted cotton is essential for simulating soil water movement under different irrigation methods. Thus, a field experiment and a simulation study were conducted during 2013-2015 to explore the deformed roots of transplanted cotton and soil water movement using border irrigation (BI) and surface drip irrigation (SDI). The results showed that SDI was conducive to root growth in the shallow root zone (0-30 cm), and that BI was conducive to root growth in the deeper root zone (below 30 cm). SDI is well suited for producing the optimal soil water distribution pattern for the deformed root system of transplanted cotton, and the root system was more developed under SDI than under BI. Comparisons between experimental data and model simulations showed that the HYDRUS-2D model described the soil water content (SWC) under different irrigation methods well, with root mean square errors (RMSEs) of 0.023 and 0.029 cm 3 cm −3 and model efficiencies (EFs) of 0.68 and 0.59 for BI and SDI, respectively. Our findings will be very useful for designing an optimal irrigation plan for BI and SDI in transplanted cotton fields, and for promoting the wider use of this planting pattern for cotton transplantation.

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Simulating water and potassium uptake of greenhouse tomato as a function of salinity stress

Wang

Yermiyahu²,

Yasuor³

et al. 2022

Irrig Sci

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Generalization of the root length density distribution of cotton under film mulched drip irrigation

Cited by 66 publications

References 47 publications

Evaluation of irrigation water salinity and leaching fraction on the water productivity for crops

Evaluation of irrigation water salinity and leaching fraction on the water productivity for crops

Root Development of Transplanted Cotton and Simulation of Soil Water Movement under Different Irrigation Methods

Simulating water and potassium uptake of greenhouse tomato as a function of salinity stress

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