• S SRINIVASAN
• M VAMSHI

The present investigation comprises a pot experiment on sunflower cv. Sunbred was carried out to study the effect of different levels of chemical fertilizers and different enriched organic composts. It was conducted during April-July, 2017 at the pot culture yard of Department of Soil Science & Agricultural Chemistry, Faculty of Agriculture, Annamalai University, Annamalainagar. The initial soil of the pot experiment was sandy clay loam in texture with a pH of 7.4 and EC of 0.44 dSm-1. A pot experiment was conducted with the treatments of five levels of factor-A (EC0–Control, EC1 – EFYM, EC2 – EWHC, EC3 – ENLC, EC4–ESDC ).and four levels of factor-B (CF0–Control, CF1–75% RDF, CF2–100% RDF, CF3–125% RDF) (20 treatment combinations), laid out in factorial completely randomized design (FCRD) with three replications. Recommended dose of N:P2O5:K2O for sunflower is 60:90:60 kg ha-1 respectively were applied in the form of urea, SSP and MOP, respectively. Sunflower cv. Sunbred was grown as a test crop. The results revealed that application of enriched composts and different levels of chemical fertilizers significantly increased the plant height and dry matter production of sunflower at 30, 60 and at harvest stages of sunflower. Among the different treatments, the combined application of CF3–125% RDF + enriched water hyacinth compost (EWHC) recorded the highest plant height 149.40 cm and dry matter production of 99.82 g pot-1 at harvest stage of sunflower.

Sunflower, plant height, dry matter production, chemical fertilizers, enriched composts

"Effect of enriched composts and different levels of N-P-K fertilizers on plant height and dry matter production of sunflower grown in sandy clay loam soil", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 9, page no.777-782, September-2018, Available :http://www.jetir.org/papers/JETIR1809623.pdf

"Effect of enriched composts and different levels of N-P-K fertilizers on plant height and dry matter production of sunflower grown in sandy clay loam soil", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 9, page no. pp777-782, September-2018, Available at : http://www.jetir.org/papers/JETIR1809623.pdf