Different Types of Fertilizers Enhanced Salt Resistance of Oat and Associated Physiological Mechanisms in Saline Soils

Agronomy

Zhenran Xu¹  Yunming Xu¹  Zhongya Ji¹  Haitong Lu¹  Guisheng Zhou²  Guanglong Zhu² 

[1] Jiangsu Key Laboratory of Crop Genetics and Physiology, Agricultural College of Yangzhou University, Yangzhou 225009, China;Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education of China, Yangzhou University, Yangzhou 225009, China;

关键词: saline soil;    oat;    fertilizer;    physiological mechanism;    yield;   

DOI  :  10.3390/agronomy12020317

来源: DOAJ

【 摘 要 】

Soil salinization is more aggravating than ever before; suitable fertilizer application is essential for promoting crop growth and productivity in saline soils. A field experiment was conducted to study the effects of different types of fertilizers on oat (Avena sativa L.) growth and associated physiological mechanism in saline soils. Two oat varieties (V1 = Baiyan 2 and V2 = Baiyan 7) were used and four fertilizer treatments (T1 = control, T2 = nitrogen fertilizer, T3 = Giza Fertile fertilizer, T4 = Powder fertilizer) were evaluated in this study. The results showed that fertilizer treatments significantly improved plant growth and associated physiological traits, grain yield, forage yield, and forage quality of both oat varieties. Plant height, leaf area, superoxide dismutase, peroxidase, proline, forage yield, panicles, spikelets per panicle, grain weight, and grain yield were significantly increased by fertilizer application, and the maximum values were all produced under T2 (nitrogen fertilizer). But the highest values of catalase, soluble sugar, and crude fat were observed under T4 (powder fertilizer). On the contrary, malondialdehyde and crude fiber were significantly decreased by fertilizer application, and the highest value was recorded under T2 and T4, respectively. V2 was superior in plant growth, grain yield, forage yield, and forage quality than V1. This study suggested that nitrogen fertilizer was superior in promoting growth, biomass yield and grain yield production, and Powder fertilizer was better in enhancing forage quality of oat in saline soils.

【 授权许可】

Unknown