Tianyu Xu¹, Yanru Su¹, Zhouming Su¹, Shuteng Zhi¹, Ennan Zheng^1,*, Chengcheng Yan²

FDMP-Fluid Dynamics & Materials Processing, Vol.18, No.4, pp. 1169-1182, 2022, DOI:10.32604/fdmp.2022.018628

Abstract The bionic structure drip irrigation emitter (BSDE) is a new-type emitter, by which better hydraulic performances can be obtained. In the present work, twenty-five sets of orthogonal test schemes were implemented to analyze the influence of the geometric parameters of the flow channel on the hydraulic characteristics and energy dissipation efficiency of this emitter. Through numerical simulations and verification tests, the flow index and energy dissipation coefficient were obtained. According to the results, the flow index of the BSDE is 0.4757–0.5067. The energy dissipation coefficient under the pressure head of 5–15 m is 584–1701. The verification test has shown that… More >

Jiangchun Chen¹, Zhenhua Wang^1,2,*, Jinzhu Zhang¹, Weibin Cao¹

Intelligent Automation & Soft Computing, Vol.26, No.5, pp. 949-959, 2020, DOI:10.32604/iasc.2020.010127

Abstract This study adopted the method of barrel planting to artificially set the salt content of six different soils (CK:1.5 g kg^-1 , T1:3.0 g kg^-1 , T2:4.0 g kg^-1 , T3:5.3 g kg^-1 , T4:6.2 g kg^-1 , T5:7.3 g kg^-1 ) to study the effects of different degrees of mild salt stress on photosynthetic physiology, growth index and yield of cotton under drip irrigation. The results showed that with the increasing salt stress and the prolongation of stress time, the photosynthetic physiological indexes of cotton showed a downward trend (P < 0.01), and the plant height and leaf area… More >

Alhan Sariyev¹, Celaleddin Barutcular^2,*, Mert Acar¹, Akbar Hossain³, Ayman EL Sabagh^2,4,5,*

Phyton-International Journal of Experimental Botany, Vol.89, No.3, pp. 519-528, 2020, DOI:10.32604/phyton.2020.09142

Abstract Maize being sub-tropical crop is sensitive to water deficit during the early growth stages; particularly clay-rich soil, due to the compaction of the soil. It is well-documented that potential sub-surface drip irrigation (SDI) (Full irrigation; SDIFull (100% field capacity (FC)), Deficit irrigation; SDIDeficit (70% FC)) improves water use efficiency, which leads to increased crop productivity; since it has a constraint that SDI excludes soil air around the root-zone during irrigation events, which alter the root function and crop performance. Additionally, in clayrich soils, the root system of plants generally suffers the limitation of oxygen, particularly the temporal hypoxia, and occasionally… More >

Yescas CP¹, MA Segura C¹, L Martínez C², VP Álvarez R¹, JA Montemayor T¹, JA Orozco V¹, JE Frías R¹

Phyton-International Journal of Experimental Botany, Vol.84, No.2, pp. 272-279, 2015, DOI:10.32604/phyton.2015.84.272

Abstract The scarcity of water in arid and semiarid regions of the world is a problem that every day increases by climate change. The subsurface drip irrigation (SDI) and changes in population density of plants are alternatives that can be used to make a sustainable use of water. Therefore, the objectives of this study were to determine the combination that allows for an increased corn performance and efficient use of water without losing the quality of forage. Three different irrigation levels were applied through a system of a SDI at three different densities of forage maize plants in an arid region.… More >

Salazar-Sosa¹ E, H I Trejo-Escareño², C Vázquez-Vázquez¹, JD López-Martínez¹

Phyton-International Journal of Experimental Botany, Vol.76, pp. 169-185, 2007, DOI:10.32604/phyton.2007.76.169

Abstract This research was performed at the agricultural experimental center of the Facultad de Agricultura y Zootecnia, Universidad de Durango, Mexico. The main objetive was to determine the best amount of cow manure application and its effect on corn production, quality and nutrient uptake. Two factors were studied in this experiment that started in 2000. The results presented in this paper correspond to 2001. The factors were (1) crop, with the levels corn alone and corn-soybean, and (2) cow manure (with the levels: 0, 40, 80, 120, 160 Mgr/ha) and chemical fertilizer (100-150-0 kg/ha of N, P₂O₅ and K, respectively). The… More >