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VOL. 6, ISSUE 4 (2021)
Effect of different planting geometry and sulphur fertilization on growth and yield, quality, nutrient uptake and post harvest soil nutrient status of sunflower in sunflower + greengram intercropping system
Authors
Pragatheeswaran M, C Kalaiyarasan, S Jawahar, R Kanagarajan, K Suseendran
Abstract
A field experiment was carried out during Mar-May, 2019 at the Experimental Farm, Department of Agronomy, Faculty of Agriculture, Annamalai University, Annamalai nagar, to study the effect of different planting geometry and sulphur levels in sunflower + greengram intercropping system on the growth and yield attributes, yield, quality, nutrient uptake and post harvest nutrient status of sunflower. The experiment consisted of twenty treatments and were laid out in factorial randomized block design with two replications. The treatment consisted of Factor A (different plant geometry levels): M1 - sole sunflower (60 x 30 cm), M2 - sunflower (60 x 30 cm) + 1 row of greengram, M3 - sunflower (90 x 30 cm) + 2 rows of greengram, M4 - sunflower (120 x 30 cm) + 3 rows of greengram, M5 - sole greengram and Factor B (sulphur levels): S0 - 0 kg S ha-1, S1 - 20 kg S ha-1, S2 - 40 kg S ha-1 and S3 - 60 kg S ha-1. The results revealed that growth and yield attributes, yield, quality and nutrient uptake of sunflower were significantly influenced by different plant geometry and various sulphur levels. Among the different planting geometry levels tried, sole sunflower (60 x 30 cm) (M1) significantly recorded maximum growth and yield attributes, yield, quality, nutrient uptake and post harvest soil nutrient status of sunflower. With regard to various sulphur levels tried, Application of sulphur at 40 kg ha-1 (S2) significantly recorded maximum growth and yield attributes, yield, quality and nutrient uptake of sunflower. Interaction between planting geometry and sulphur levels were significant. Among the treatment combinations tried, sole cropping of sunflower (60 x 30 cm) along with application of S at 40 kg ha-1 (M1S2) had a spectacular effect on growth and yield attributes, quality and nutrient uptake ultimately leading to maximum seed yield (2152 kg ha-1). The minimum growth and yield attributes, yield, quality and nutrient uptake were recorded in sunflower (120 x 30 cm) intercropped with three rows of greengram along with application of S at 0 kg ha-1 (M4S0). With regard to post harvest soil nutrient status, the treatment combination of sunflower (120 x 30 cm) intercropped with three rows of greengram along with application of S at 60 kg ha-1 (M4S3) significantly recorded higher post harvest soil nutrient status.
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Pages:660-664
How to cite this article:
Pragatheeswaran M, C Kalaiyarasan, S Jawahar, R Kanagarajan, K Suseendran "Effect of different planting geometry and sulphur fertilization on growth and yield, quality, nutrient uptake and post harvest soil nutrient status of sunflower in sunflower + greengram intercropping system ". International Journal of Botany Studies, Vol 6, Issue 4, 2021, Pages 660-664
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