期刊
COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS
卷 53, 期 20, 页码 2700-2709出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/00103624.2022.2072867
关键词
Nano-sulfur; release pattern; nutrient use efficiency; sunflower
资金
- DST-SERB
This laboratory study investigated the response of sunflower to nano-sulfur application compared to conventional sulfatic fertilizer. The results showed that nano-sulfur had a prolonged sulfur release, higher dry matter production, seed yield, and oil content than gypsum fertilized plants, indicating that nano-sulfur can improve the available sulfur in soils.
A laboratory study was undertaken to determine the response of sunflower to nano-sulfur application in comparison to conventional sulfatic fertilizer. Nano-sulfur particles were characterized using a particle size analyzer, zeta potential, UV-Spectroscopy, XRD, FT-IR, SEM, and TEM. After the complete characterization, the sulfur release pattern was studied in a percolation reactor system. Thereafter, response studies were carried out using sunflower (var. KBSH 42) crop. The stable and uniform nano-sulfur particles with a medium diameter of 35-45 nm are yielded by the aqueous precipitation method. The results showed that sulfur release from the nano-sulfur has prolonged for 42 days, while the sulfur release from the ordinary sulfur fertilizer (gypsum) ceased to exist within 35 days. Nano-sulfur fertilized plants had registered significantly higher dry matter production (11-12%), seed yield (15%), and oil content (14.7%) than gypsum fertilized plants. The data revealed that nano-sulfur assists in improving the available sulfur in soils.
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