scholarly journals Investigating the Proper Application Rate of Nitrogen under Mulched Drip Irrigation to Improve the Yield and Quality of Tomato in Saline Soil

Agronomy ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 293
Author(s):  
Jifeng Zhang ◽  
Zhenhua Wang ◽  
Bihang Fan ◽  
Yusheng Hou ◽  
Yunqing Dou ◽  
...  
Keyword(s):  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Drip Irrigation ◽  
N Application ◽  
Tomato Yield ◽  
Yield And Quality ◽  
Application Rates ◽  
Mulched Drip Irrigation

Xinjiang is one of the most prolific tomato-planting areas in China. Here, we carried out a two-year (2017–2018) field experiment in Xinjiang to study the effects of different nitrogen (N) application rates on the spatial distribution of water and salt in the root zone, as well as their impacts on the yield and quality of tomatoes under mulched drip irrigation. The ideal ranges of N application rates for tomato yield and quality were examined under different salinity levels. Results indicated that soil water content and salinity increased with soil depth. Soil water content was closely related to soil salinity but not to N. Among the tested application rates, tomato yield was highest under the medium-high N (225–300 kg/ha) and low salt (4 g/kg) treatment. Under the highest salt level (10 g/kg), the low nitrogen treatment (150 kg/ha) was better than the high N treatment (300 kg/ha) at boosting tomato yield. Moreover, we found that salinity had a stronger effect on tomato quality than N. Based on these results, we were able to recommend ideal ranges for N (155–201 kg/ha) and salt (3.56–5.59 g/kg) while both are present in the soil.

Simulation of cotton growth and soil water content under film-mulched drip irrigation using modified CSM-CROPGRO-cotton model

2019 ◽  
Vol 218 ◽  
pp. 124-138 ◽  
Author(s):  
Meng Li ◽  
Yingji Du ◽  
Fucang Zhang ◽  
Yungang Bai ◽  
Junliang Fan ◽  
...  
Keyword(s):  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Drip Irrigation ◽  
Mulched Drip Irrigation

Effects of Soil Water Content on Cotton Root Growth and Distribution Under Mulched Drip Irrigation

2009 ◽  
Vol 8 (6) ◽  
pp. 709-716 ◽  
Author(s):  
Xiao-tang HU ◽  
Hu CHEN ◽  
Jing WANG ◽  
Xiao-bin MENG ◽  
Fu-hong CHEN
Keyword(s):  
Root Growth ◽  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Drip Irrigation ◽  
Cotton Root ◽  
Mulched Drip Irrigation

scholarly journals Effects of Mulched Drip Irrigation on Soil Moisture and Groundwater Recharge in the Xiliao River Plain, China

Water ◽  
2018 ◽  
Vol 10 (12) ◽  
pp. 1755 ◽  
Author(s):  
Xiaohui Jin ◽  
Minjian Chen ◽  
Yumiao Fan ◽  
Long Yan ◽  
Fang Wang
Keyword(s):  
Water Content ◽  
Groundwater Recharge ◽  
Soil Water ◽  
Soil Water Content ◽  
Drip Irrigation ◽  
Growth Stage ◽  
Infiltration Depth ◽  
Flood Irrigation ◽  
River Plain ◽  
Mulched Drip Irrigation

Mulched drip irrigation for maize cultivation has been widely implemented in the Xiliao River Plain in Northeast China in recent years. However, the effects of the change in irrigation method on soil water content and groundwater recharge in this area still remains uncertain. In this study, soil water content under mulched drip irrigation and flood irrigation was measured through field experiments. Soil water movement in the entire growing season under the two irrigation methods was simulated for the quantitative analysis of groundwater recharge by the Hydrus-2D model. Results showed that soil water content under mulched drip irrigation was generally larger than that of flood irrigation in the initial growth stage. However, an opposite trend was observed in the main growth stage. The simulated results indicated that the cumulative water fluxes of flood irrigation were greater than the values of mulched drip irrigation. Moreover, while infiltration depth under flood irrigation reached the maximum simulated depth (400 cm), infiltration depth under mulched drip irrigation was only 325 cm. The results of this study showed that mulched drip irrigation reduced the infiltration depth and groundwater recharge to some extent in the Xiliao River Plain. Such results are helpful in determining the influence of mulched drip irrigation on groundwater and can be a reference for the maintenance of the sustainability of regional groundwater in the large-scale promotion of mulched drip irrigation.

Multiscaling analysis of Soil Water Content during irrigation events. Comparison between surface and subsurface drip irrigation

Geoderma ◽  
2021 ◽  
Vol 382 ◽  
pp. 114777
Author(s):  
Leonor Rodríguez-Sinobas ◽  
Sergio Zubelzu ◽  
Juan J. Martín-Sotoca ◽  
Ana M. Tarquis
Keyword(s):  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Drip Irrigation ◽  
Subsurface Drip Irrigation ◽  
Subsurface Drip

scholarly journals Tomato and Nightshade (Solanum nigrum L. and S. ptycanthum Dun.) Effects on Soil Water Content

1992 ◽  
Vol 117 (5) ◽  
pp. 730-735 ◽  
Author(s):  
Milton E. McGiffen ◽  
John B. Masiunas ◽  
Morris G. Huck
Keyword(s):  
Water Stress ◽  
Water Content ◽  
Soil Water ◽  
Soil Water Content ◽  
Water Deficit ◽  
Field Experiments ◽  
Eastern Black Nightshade ◽  
Black Nightshade ◽  
Tomato Yield ◽  
Solanum Nigrum L

Field and greenhouse experiments were conducted to determine the response of eastern black nightshade (Solanum ptycanthum), black nightshade (S. nigrum), and tomato (Lycopersicon esculentum Mill. cv. Heinz 6004) to water stress and the effect of nightshade-tomato competition on soil water content. In the greenhouse, plants were exposed to three water regimes induced by watering either daily, weekly, or biweekly. Water deficit caused a similar decrease in height, weight, and leaf area in all three species. There was more than a 50% reduction in height when the plants were watered biweekly compared with daily watering. Water stress caused a shift in biomass from shoots to roots in all three species. Black nightshade and tomato produced thinner leaves in response to water deficit. Companion field experiments were conducted during the 1989 and 1990 growing seasons in Urbana, Ill. Eastern black nightshade and black nightshade were transplanted at densities of 0.8, 1.6, 3.2, and 4.8 plants/m2, 5 days after tomatoes were transplanted. These nightshade densities caused significant reductions in soil water content. In 1989, only the highest density of either nightshade species reduced topsoil water content. In 1990, all densities of nightshade, except the two lowest densities of black nightshade, reduced topsoil water content. Eastern black nightshade consistently had a greater effect on tomato yield than black nightshade. Tomato yields averaged over both years were 17,000 and 8,000 kg·ha-1 at the highest (4.8 plants/m*) density of black and eastern black nightshade, respectively. The decrease in soil moisture from high densities of nightshade could not account for the reduced yields.

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