Impacts of Sulfur and Microalgae Co-fertilization on Saline-alkaline Soil of Sunflower Field in Hetao Irrigation District

Ruimin Dong, Liming Lai, Peng Zhang, Yanxiong Zhao, Yang Yang, Haiwei Wang, Man Wang and Yuelong Dong

Asian Agricultural Research, 2023, vol. 15, issue 03

Abstract: [Objectives]To evaluate the impacts of the elemental sulfur (S0) and micro-algae (MA) co-fertilization on saline-alkaline soil of sunflower field in the Hetao Irrigation District (HID). [Methods]The greenhouse pot experiment was conducted with four treatments: control (CK), single S0fertilization (S), single MA fertilization (A), and S0and MA co-fertilization (SA) for comparing the selected soil properties and sunflower plant heights and weights in different treatments. [Results]The results showed that the mean soil organic matter (SOM) under the SA (25.08 g/kg) was significantly higher than that for the CK (20.59 g/kg), S (22.47 g/kg), and A (22.95 g/kg). The mean pH under the SA (7.75) was significantly lower than that for the CK (8.14), S (7.82), and A (7.96). The mean soil exchangeable Na+concentration under the SA was significantly lower than that for the S. The mean soil electrical conductivity (EC) under the SA was 9.76% lower than that for the S. The means of Cl-(1.22 g/kg) and width=31,height=15,dpi=110(1.90 g/kg) in soil under the SA were lower than that for the S (1.30, 2.06 g/kg)and A (1.31, 1.97 g/kg), respectively. For plant height 3 at the late stage of plant growth, the mean plant height 3 under the SA (89.00 cm) was higher than that of the CK (69.60 cm) and A (74.33 cm). The total weights of the fresh sunflower heads, fresh stems, and dry seeds under the SA were higher than that for the CK, S, and A. [Conclusions]In conclusion, the S0and MA co-fertilization had positive effects on improving saline-alkaline soils, the soil under the S0and MA co-fertilization could be better conditions for promoting sunflower growth than that for the S, Z, and CK, and thereby the S0and MA co-fertilization could be a new idea to improve saline-alkaline soil in the cold and arid regions.

Keywords: Agribusiness (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:ags:asagre:341370

DOI: 10.22004/ag.econ.341370

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