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Agronomy 2019, 9(2), 48;

Combining Mineral Amendments Improves Wheat Yield and Soil Properties in a Coastal Saline Area

Center for Resources, Environment and Food Security, China Agricultural University, Beijing 100193, China
Seed Multiplication Farm in Kenli County, Dongying 257500, China
Agricultural High-Tech Industry Demonstration Area of the Yellow River Delta, Dongying 257300 China
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Received: 4 January 2019 / Revised: 19 January 2019 / Accepted: 21 January 2019 / Published: 24 January 2019
(This article belongs to the Section Soil and Plant Nutrition)
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Certain minerals possess structures that convey properties which improve soil quality; however, their application in coastal saline areas has been poorly studied. In this study, we explored the effects of combining mineral amendments on the improvement of wheat yield and soil properties in a two-year field experiment in mildly saline coastal soil areas of the Yellow River Delta, China. Five mineral materials were combined into the following four treatments: zeolite + rock phosphate (ZP), zeolite + silica calcium soil conditioner (ZC), vermiculite + rock phosphate (VP), and vermiculite + medical stone (VS). For all treatments, combined mineral amendments increased wheat yield compared to the control, with similar increases in yield following treatment with VP (45.7%), ZP (43.5%), and ZC (43.6%), and a significantly smaller increase following VS treatment (26.3%). These increases in grain yield were attributed to larger dry matter accumulation and higher grain numbers per ha. Compared to the control, ZP and ZC application substantially reduced soluble magnesium (Mg) and sodium (Na) contents, electrical conductivity (EC), and sodium adsorption ratio (SAR), and increased soil organic carbon (SOC) at a soil depth of 0–20 cm. VP application increased soil available phosphorus (P) by 34.7% and soluble potassium (K) by 69.3% at a soil depth of 0–20 cm. VS application slightly increased the SOC, total nitrogen (N), available P, and soluble K compared to the control. Overall, these results indicate that combining mineral amendments significantly increases wheat yield and improves soil properties in a saline area. Thus, we recommend the use of mineral amendments in saline coastal areas. View Full-Text
Keywords: coastal saline area; mineral materials; soil properties; wheat growth; yield coastal saline area; mineral materials; soil properties; wheat growth; yield

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Zhang, J.; Jiang, X.; Miao, Q.; Yu, B.; Xu, L.; Cui, Z. Combining Mineral Amendments Improves Wheat Yield and Soil Properties in a Coastal Saline Area. Agronomy 2019, 9, 48.

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