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

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.

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

Agricultural Sciences in China ◽

10.1016/s1671-2927(08)60269-2 ◽

2009 ◽

Vol 8 (6) ◽

pp. 709-716 ◽

Cited By ~ 31

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

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EFFECTS OF INTERCROPPING DIFFERENT HALOPHYTES IN BARE STRIPS ON SOIL WATER CONTENT, SALT ACCUMULATION, AND COTTON (GOSSYPIUM HIRSUTUM) YIELDS IN MULCHED DRIP IRRIGATION

Applied Ecology and Environmental Research ◽

10.15666/aeer/1804_59235937 ◽

2020 ◽

Vol 18 (4) ◽

pp. 5923-5937

Author(s):

J.Z. GUO ◽

W.J. SHI ◽

J.K. LI

Keyword(s):

Gossypium Hirsutum ◽

Water Content ◽

Soil Water ◽

Soil Water Content ◽

Drip Irrigation ◽

Salt Accumulation ◽

Mulched Drip Irrigation

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

Water ◽

10.3390/w10121755 ◽

2018 ◽

Vol 10 (12) ◽

pp. 1755 ◽

Cited By ~ 4

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.

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