Effect of Organic Manures, Micronutrients and Growth Regulators on Growth and Yield of Sesame (Sesamum indicum L.) in Coastal Saline Soil


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Authors

  • R SINGARAVEL Department of Soil Science and Agricultural Chemistry, Faculty of Agriculture, Annamalai University, Annamalai Nagar - 608 002, Tamil Nadu
  • D BALAMBIGAI Department of Soil Science and Agricultural Chemistry, Faculty of Agriculture, Annamalai University, Annamalai Nagar - 608 002, Tamil Nadu
  • K VISWANATHAN Department of Soil Science and Agricultural Chemistry, Faculty of Agriculture, Annamalai University, Annamalai Nagar - 608 002, Tamil Nadu

Keywords:

Coastal saline soil, Growth regulator, Manures, Micronutrients, Sesame

Abstract

A pot experiment was conducted in the Department of Soil Science and Agricultural Chemistry, Annamalai University, Tamil Nadu. The soil used in the study was saline in nature having pH 8.02 and EC 3.16 dS m-1(1:2.5 soil water ratio), low organic C content (0.30 %). The available N, P and K status were low, low and medium respectively and the DTPA extractable Zn and Mn were below the critical limit. The treatments consisted  of T1 (control) – recommended NPK (35: 23: 23 kg N: P2O5: K2O ha-1), T2 – recommended NPK + ZnSO4 @ 25 kg ha-1 + MnSO4 @ 5 Kg ha-1 + sea weed extract @  0.5 % ,T3 – recommended NPK + FYM @ 12.5 t ha-1 + ZnSO4 @ 25 kg ha-1 + MnSO4 @ 5 Kg ha-1 + sea weed extract @  0.5 %  , T4 – recommended NPK+ Vermicompost @ 4 t ha-1 + ZnSO4 @ 25 kg ha-1 + MnSO4 @ 5 Kg ha-1 + sea weed extract @ 0.5 %, T5 – recommended NPK + ZnSO4 @ 25 kg ha-1 + MnSO4 @ 5 Kg ha-1 + Humic acid @ 20 kg ha-1 +sea weed extract @  0.5 %. The results of the experiment showed that application of organic manures and micronutrients increased the growth and yield of sesame. Among the treatments, T5 consisting of  recommended NPK + ZnSO4 + MnSO4 + humic acid + foliar application of sea weed extract recorded a significantly higher seed (35.7 g pot-1) and haulm yield (67.3 g pot-1) and uptake of NPK and micronutrients by sesame. A significant reduction in the pH and EC and increased availability of nutrients was also recorded with this treatment. Supplementation of the recommended dose of NPK fertilizers with organic manures, micronutrients and growth regulators would therefore be beneficial in improving the growth and yield of sesame as well as improve soil properties in a coastal saline soil.

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2019-08-01

Published

2019-08-02

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How to Cite

SINGARAVEL, R., BALAMBIGAI, D., & VISWANATHAN, K. (2019). Effect of Organic Manures, Micronutrients and Growth Regulators on Growth and Yield of Sesame (Sesamum indicum L.) in Coastal Saline Soil. Journal of the Indian Society of Coastal Agricultural Research, 37(1), 46-50. https://epubs.icar.org.in/index.php/JISCAR/article/view/92306