Vol. 7, Issue 1 (2019)
Integrated sulphur management practices on growth and yield of sunflower
Author(s): Kalaiyarasan C, J Jayaraman, S Jawahar, MV Sriramachandrasekharan, Suseendran K and S Ramesh
Abstract: Field investigations were carried out during March 2012 and August 2012 at Experimental Farm, Department of Agronomy, Faculty of Agriculture, Annamalai University, Annamalai Nagar, to study the effect of Integratedsulphur management practices on the growth and yield of hybrid sunflower Cv. sunbred. The experiments were laid out in randomized block design and replicated thrice. The experiment consisted of eleven treatments viz., T1 – No sulphur / RDF alone (control), T2 – 45 kg S ha-1 through gypsum, T3 - 45 kg S ha-1 through vermicompost, T4 - 45 kg S ha-1 through poultry manure, T5 - 45 kg S ha-1 through lignite flyash, T6 - 75% S ha-1 through gypsum + 25% S ha-1 through vermicompost, T7 - 75% S ha-1 through gypsum + 25% S ha-1 through poultry manure, T8 - 75% S ha-1 through gypsum + 25% S ha-1 through lignite flyash, T9 – 50% S ha-1 through gypsum + 50% S ha-1 through vermicompost, T10 – 50% S ha-1 through gypsum + 50% S ha-1 through poultry manure and T11- 50% S ha-1 through gypsum + 50% S ha-1 through lignite flyash. The results of the experiments revealed that, application of 75% S ha-1 through gypsum + 25% S ha-1 through vermicompost (T6) significantly influenced the growth and yield attributes and yield in sunflower. This treatment recorded higher values for growth and yield attributes viz., plant height (152.37 and 154.38 cm), LAI (6.90 and 6.97 cm at flowering stage), DMP (4225.72 and 4328.81 kg ha-1)at harvest stage, chlorophyll content (2.28 and 2.31 mg g-1) at flowering and yield attributes viz., total number of seeds head-1 (778.06 and 815.26), number of filled deeds head-1 (634.45 and 672.28), seed filling percent (83.04 and 84.26%), and seed yield (1825.46 and 1927.39 kg ha-1) and stalk yield (3800.63 and 3898.59 kg ha-1) in both the crops. This was followed by T7 (75% S ha-1 through gypsum + 25% S ha-1 through poultry manure) in both the crops. The lowest values for growth and yield attributes and yield were recorded in T1-No sulphur / RDF alone (control) in both the crops.
Pages: 1020-1022 | 350 Views 52 Downloads
download (5491KB)
How to cite this article:
Kalaiyarasan C, J Jayaraman, S Jawahar, MV Sriramachandrasekharan, Suseendran K, S Ramesh. Integrated sulphur management practices on growth and yield of sunflower. Int J Chem Stud 2019;7(1):1020-1022.
