Đang chuẩn bị liên kết để tải về tài liệu:
Effect of sulphur and iron on chlorophyll content, leghaemoglobin content, soil properties and optimum dose of Sulphurfor groundnut (Arachis hypogaea L.)

An experiment was conducted at Agronomy farm, S.K.N. College of Agriculture, Jobner during kharif season 2017. The treatments comprising four Sulphur levels (control, 20 kg S/ha, 40 kg S/ha and 60 kg S/ha) and four foliar spray of iron (control, foliar spray of 0.5% FeSO4 at flowering, peg formation and flowering + peg formation) assigned to main and subplots of Randomized Block Design, respectively were replicated thrice. Groundnut variety RG-425(Raj Durga) was used as a test crop. Sulphur fertilization 60 kg/ha significantly increased chlorophyll and leghaemoglobin content but enzymatic activities in soil were found significant at 40 kg S/ha. Soil properties like Available S increases up to 60 kg/ha, but Available N, P, K and Fe did not differ significantly on application of different levels of Sulphur. The foliar spray of 0.5% at flowering + peg formation stage increases chlorophyll and leghaemoglobin content. The available N, P, K, S and Fe in soil as well as dehydrogenase and alkaline phosphates were found non-significant on foliar spray of 0.5% FeSO4 at different stages. Based on response studies, 60.19 kg/ha was found to be the optimum level of S for groundnut. | Effect of sulphur and iron on chlorophyll content, leghaemoglobin content, soil properties and optimum dose of Sulphurfor groundnut (Arachis hypogaea L.)