Arid Zone Research ›› 2019, Vol. 36 ›› Issue (2): 307-313.

Previous Articles     Next Articles

Soil Water and Salt Migration in Cotton Field in Ridge Furrow Planting andConventional Flat Planting under Drip Irrigation

SUN Chi-tao1,2, ZHANG Jun-peng2, ZHANG Qian3, FENG Di1, FENG Guo-yi3, SUN Jing-sheng1,2, LIN Yong-zeng3   

  1. 1. Institute of Farmland Irrigation Research, Chinese Academy of Agricultural Sciences/Key Laboratory for Crop Water Requirement and Regulation under Ministry of Agriculture, Xinxiang 453000, Henan, China; 2. College of Water Conservancy and Civil Engineering, Shandong Agricultural University, Taian 271018, Shandong, China; 3. Institute of Cotton Research, Hebei Academy of Agricultural and Forestry Sciences/Key Laboratory of Biology and Genetic Improvement of Cotton in Huanghuaihai Semiarid Area, Shijiazhuang 050051, Hebei, China

  • Received:2018-06-25 Revised:2018-10-30 Online:2019-03-15 Published:2019-03-12

Abstract: In this study, two typical cotton planting ways, i.e. the ridge furrow planting and conventional flat planting, were selected in the coastal area with severe soil salinization so as to clarify the effect of different cotton transplanting ways on soil water and salt migration under drip irrigation. The soil moisture content, soil salinity and soil solution conductivity at different sites and depths were investigated before and after drip irrigation. Spatial and temporal distribution characteristics of soil moisture content, soil salinity and soil solution conductivity were analyzed. The result showed that the depth of soil water infiltration and salt leaching in ridge furrow treatment was deeper than that of conventional flat planting treatment, and the soil solution concentration in 0-20 cm soil layer in ridge furrow planting pattern was lower than that of conventional flat planting treatment. There was no significant difference in soil water and salt migration outside the plastic film mulch under the two treatments. The combined drip irrigation technology in ridge furrow planting was more conducive to providing a suitable water and salt environment for cotton growth. This study could provide both theoretical and practical references for cotton cultivation in saline soil.

Key words: planting pattern, saline alkali soil, drip irrigation, cotton field, water and salt migration, conductivity, Hebei Province