Effect of Sulphur and Vermicompost Application on Agronomic Traits of Hubbit Cultivar of Soybean (Glycine max L.)

Abstract

To study the effect of sulphur and vermicompost application on morphological and agronomic traits of soybean (Hubbit Cultivar), an experiment was carried out at Aligudarz city, Lorestan province, Iran in 2017. The experimental design was two-factor split-plot design based on a randomized complete block design with three replications. Factors were vermicompost as the main factor with three levels (0, 4 and 8 ton.ha-1) and sulphur fertilizer as a sub-factor with three levels (0, 250 and 500 kg.ha-1). The results indicated that the main and interaction effects of vermicompost and sulphur on plant height, stem number per plant, pod length, number of pods per plant, 100 seed weight, protein yield, oil yield, grain yield, biological yield and soybean harvest index were significant. The highest plant height belonged to the application of 4 tons per hectare of vermicompost alomg with 250 kg.ha-1 sulphur fertilizer (76.52 cm) and the lowest to not using vermicompost and sulphur (control) (61.50 cm). The highest 100 seed weight, protein yield, oil yield, seed yield and harvest index were produced from 8 tons per hectare of vermicompost and 250 kg.ha-1 sulphur fertilizer respectively (20.86 g, 475.25 kg.ha-1, 787.58 kg.ha-1, 252.250 kg.ha-1, 34.13%) and their lowest values from application of fertilizers of vermicompost and sulphur (control) respectively (12.05 g, 443.26 kg.ha-1, 243.66 kg.ha-1, 1440.11 kg.ha-1, 31.44%, respectively). The results also showed that simultaneous use of vermicompost and sulphur fertilizers at levels of 8 tons and 250 kg.ha-1 was the best treatment for increasing soybean yield under experimental climatic conditions

Keywords

• soybean
• vermicompost
• sulphur
• grain yield
• harvest ind