Amending Clayey Saline Soil with Yellow River Sediments to Improve the Yield of Winter Wheat in the Delta of Yellow River

• Published in: Guanʻgai paishui xuebao Vol. 41; no. 2; pp. 118 - 123
• Main Authors: CHEN Chaofan, MAO Weibing, SUN Yuxia, GUO Tongkai, QU Xiaoling
• Format: Journal Article
• Language: Chinese
• Published: Science Press 01.02.2022
• Subjects: amendment; clay soil; winter wheat yield; yellow river sediment
• ISSN: 1672-3317
• DOI: 10.13522/j.cnki.ggps.2021307

【Objective】 The delta of Yellow River is characterized by soil salinity. Different methods have been proposed to remediate it, and the objective of this paper is to investigate the efficacy of amending it with Yellow River sediments in reliving the salinity and improving winter wheat yield. 【Method】 The field experiment was conducted in a saline clay soil which was amended with Yellow River sediment at rates of 0 kg/m2, 5 kg/m2, 10 kg/m2, 15 kg/m2, 20 kg/m2, 25 kg/m2, 30 kg/m2, 35 kg/m2 respectively. For each treatment, we measured the changes in saturated hydraulic conductivity, soil water content and soil salinity, as well as grain yield and yield traits. 【Result】 Soil amendment reduced the soil bulk density, with the decrease increased with the amending rate. The sediment amendment also increased the saturated hydraulic conductivity, exponentially as sediment application increased. The amendment reduced soil moisture content and salt content in the 0~40 cm of soil layer. Applying 15 kg/m2 of the sediment r