Effects of Sand-mulching Years on Physiological Characteristics and Yield of Watermelon in Sand-mulching Field in Arid Regions Under Natural Conditions(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Effects of Sand-mulching Years on Physiological Characteristics and Yield of Watermelon in Sand-mulching Field in Arid Regions Under Natural Conditions

Author(s):: HUANG Shansong1; SHEN Hui1; 2; 3; TIAN Juncang1; 2; 3; ZHANG Xiao1; 1.School of Civil Engineering and Water Conservancy，Ningxia University，Yinchuan，Ningxia 750021；2.Ningxia Water-saving Irrigation and Water Resources Regulation Engineering Technology Research Center，Yinchuan，Ningxia 750021；3.Arid Areas of Modern Agricultural Water Resources Efficient Use of Engineering Research Center of Ministry of Education，Yinchuan，Ningxia 750021

Keywords:: sand-mulching years; watermelon in sand-mulching field; soil physiochemical property; physiological characteristics; yield

Abstract:: ‘Jincheng 5’ watermelon was used as test material，using single-factor comparison experiment，the effects of sand-mulching years on physiological characteristics and yield of watermelon in sand-mulching field in arid regions under natural conditions were studied，in order to provide theoretical basis for sustainable development of watermelon in sand-mulching field.The results showed that during the growth period，the change curve of soil organic matter showed a double peak curve，others showed a single peak curve，but the high peak and low peak of every treatment was different.With the sand-mulching years increasing，the soil nutrient content (available P，available K，available N and organic matter) decreased，the total salinity showed the contrary.During the growth period，main stem length，the number of leaves，leaf area and leaf area index were on the rise，and decreased with the sand-mulching years decreasing.Under the experimental conditions，the yield of watermelon decreased when the sand-mulching years extended.

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Last Update: 2017-11-01