ARCHIVES
VOL. 6, ISSUE 4 (2021)
Influence of micronutrients enriched organic manure with NPK levels on the sesame yield and soil fertility in coastal saline sandy soil
Authors
D Elayaraja, S Jawahar
Abstract
Sesame is a promising oilseed crop generally grown in coastal saline sandy soil. The light texture coastal saline sandy soils are being poor in organic matter and exchange property, low nutrient and water retention capacity and also lesser availability of both macro and micro nutrients. These problems severely affect the productivity of crops in this region. Even the nutrients applied in adequate amount, due to poor physical and exchange characteristics which are leached out. This necessitates the increased rate of nutrients application especially NPK in such soil. Hence, increasing levels of NPK and micronutrients fortified organic manures application in such soils hold promise in improving the sesame yield and nutrient availability in coastal saline soil. Therefore, a field experiment was carried out in a coastal farmer’s field during January – April 2017 to study the effect of micronutrients fortified organic manures with different NPK levels on yield of sesame and corresponding soil fertility in coastal saline soil. Texturally, the experimental soil was sandy and taxonomically classified as Typic Usticpsamments with the pH of 8.48 and EC of 4.15 dS m-1. The available NPK were low, low and medium status, respectively. The various treatments included in this study were T1-Control (100% NPK alone), T2-125% NPK, T3-150% NPK, T4-100% NPK+ZnSO4 @ 25 kg ha-1 + MnSO4 @ 5 kg ha-1, T5-125% NPK + ZnSO4 @ 25 kg ha-1 + MnSO4 @ 5 kg ha-1, T6-150% NPK+ZnSO4 @ 25 kg ha-1 + MnSO4 @ 5 kg ha-1,T7-100% NPK + ZnSO4 @ 25 kg ha-1 + MnSO4 @ 5 kg ha-1 + Composted coirpith (CCP) @ 12.5 t ha-1, T8-125% NPK + ZnSO4 @ 25 kg ha-1 + MnSO4 @ 5 kg ha-1 + CCP @ 12.5 t ha-1, T9-150% NPK + ZnSO4 @ 25 kg ha-1 + MnSO4 @ 5 kg ha-1 + CCP @ 12.5 t ha-1, T10-100% NPK + Micronutrients (Zn + Mn) Enriched composted coirpith (MNECCP) @ 5 t ha-1, T11-125% NPK + MNECCP @ 5 t ha-1 and T12-150% NPK + MNECCP @ 5 t ha-1. The above treatments were arranged in a Randomized Block Design (RBD) with three replications and sesame var. TMV 7 was used as test crop. The results of the study clearly showed that application of 125% NPK + Micronutrients (Zn + Mn) Enriched composted coirpith (MNECCP) @ 5 t ha-1 was superior in growth, yield characteristics and yield of sesame over rest of the treatments which also increased the soil nutrient availability in the post harvest soil. Therefore it can be a viable practice to improve the sesame yield and soil fertility in coastal saline sandy soil.
Download
Pages:779-783
How to cite this article:
D Elayaraja, S Jawahar "Influence of micronutrients enriched organic manure with NPK levels on the sesame yield and soil fertility in coastal saline sandy soil ". International Journal of Botany Studies, Vol 6, Issue 4, 2021, Pages 779-783
Download Author Certificate
Please enter the email address corresponding to this article submission to download your certificate.