International Journal of Agricultural Sciences

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Effect of Vermicompost and Micronutrients Fertilization on the Growth, Yield and Nutrients Uptake by Sesame (Sesamum indicum L.) in Coastal Saline Soil


Affiliations
1 Department of Soil Science and Agricultural Chemistry, Annamalai University, Annamalai Nagar, Chidambaram (T.N.), India
     

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A field experiment was conducted in the farmer’s field during January-April 2015, to study the effect of vermicompost and micronutrients fertilization on the growth, yield and nutrients uptake by sesame in coastal saline soil. Texturally, the experimental soil was sandy and taxonomically classified as Typic Udipsamments with initial soil characteristics (0-15 cm layer) of the experimental site were, pH-8.37 and EC-1.58 dS m-1. The soil registered low organic carbon status of 2.31 g kg-1, 134.56 kg ha-1 of alkaline KMnO4-N; 9.43 kg ha-1 of Olsen-P and 159.31 kg ha-1 of NH4OAc-K, respectively. The DTPAextractable Zn and Mn was 0.69 mg kg1 and 0.94 mg kg-1, respectively. The various treatments imposed in the study included T1-Control (RDF alone), T2-RDF+vermicompost (VC) @ 5 t ha-1, T3-RDF+ZnSO4 @ 25 kg ha-1 soil application (SA)+MnSO4 @ 5 kg ha-1 (SA), T4-RDF+ZnSO4@ 0.5% foliar application (FA)+MnSO4 @ 0.5% (FA), T5-RDF+(ZnSO4+MnSO4) SA+(ZnSO4+MnSO4) FA, T6-RDF+VC (ZnSO4+MnSO4) SA, T7-RDF+VC+(ZnSO4+MnSO4) FA, T8-RDF+VC+(ZnSO4+MnSO4) SA+(ZnSO4+MnSO4) FA, T9-RDF+VC+(50% ZnSO4+50% MnSO4) SA and T10-RDF+VC+(50% ZnSO4+50% MnSO4) SA+(ZnSO4+MnSO4) FA @ 0.5 per cent. The experiment was carried out in a Randomized Block Design (RBD) with three replications and tested with sesame var. TMV 7 as test crop. The results of the study clearly indicated that the combined application of RDF+VC+50% recommended ZnSO4 @ 12.5 kg ha-1+50% MnSO4 @ 2.5 kg ha-1 through soil application along with foliar spray of ZnSO4+MnSO4 twice @ 0.5 per cent significantly increased the growth, yield and nutrient uptake by sesame. This treatment recorded the highest seed and stalk yield of 792 kg ha-1 and 1713 kg ha-1 which was 45.32 and 36.77 per cent increased seed and stalk yield, respectively over recommended dose of fertilizer alone (RDF).

Keywords

Coastal Saline Soil, Vermicompost, RDF, Zinc, Manganese, Soil Application, Foliar Application, Sesame, Yield, Uptake.
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  • Effect of Vermicompost and Micronutrients Fertilization on the Growth, Yield and Nutrients Uptake by Sesame (Sesamum indicum L.) in Coastal Saline Soil

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Authors

D. Elayaraja
Department of Soil Science and Agricultural Chemistry, Annamalai University, Annamalai Nagar, Chidambaram (T.N.), India
R. Singaravel
Department of Soil Science and Agricultural Chemistry, Annamalai University, Annamalai Nagar, Chidambaram (T.N.), India

Abstract


A field experiment was conducted in the farmer’s field during January-April 2015, to study the effect of vermicompost and micronutrients fertilization on the growth, yield and nutrients uptake by sesame in coastal saline soil. Texturally, the experimental soil was sandy and taxonomically classified as Typic Udipsamments with initial soil characteristics (0-15 cm layer) of the experimental site were, pH-8.37 and EC-1.58 dS m-1. The soil registered low organic carbon status of 2.31 g kg-1, 134.56 kg ha-1 of alkaline KMnO4-N; 9.43 kg ha-1 of Olsen-P and 159.31 kg ha-1 of NH4OAc-K, respectively. The DTPAextractable Zn and Mn was 0.69 mg kg1 and 0.94 mg kg-1, respectively. The various treatments imposed in the study included T1-Control (RDF alone), T2-RDF+vermicompost (VC) @ 5 t ha-1, T3-RDF+ZnSO4 @ 25 kg ha-1 soil application (SA)+MnSO4 @ 5 kg ha-1 (SA), T4-RDF+ZnSO4@ 0.5% foliar application (FA)+MnSO4 @ 0.5% (FA), T5-RDF+(ZnSO4+MnSO4) SA+(ZnSO4+MnSO4) FA, T6-RDF+VC (ZnSO4+MnSO4) SA, T7-RDF+VC+(ZnSO4+MnSO4) FA, T8-RDF+VC+(ZnSO4+MnSO4) SA+(ZnSO4+MnSO4) FA, T9-RDF+VC+(50% ZnSO4+50% MnSO4) SA and T10-RDF+VC+(50% ZnSO4+50% MnSO4) SA+(ZnSO4+MnSO4) FA @ 0.5 per cent. The experiment was carried out in a Randomized Block Design (RBD) with three replications and tested with sesame var. TMV 7 as test crop. The results of the study clearly indicated that the combined application of RDF+VC+50% recommended ZnSO4 @ 12.5 kg ha-1+50% MnSO4 @ 2.5 kg ha-1 through soil application along with foliar spray of ZnSO4+MnSO4 twice @ 0.5 per cent significantly increased the growth, yield and nutrient uptake by sesame. This treatment recorded the highest seed and stalk yield of 792 kg ha-1 and 1713 kg ha-1 which was 45.32 and 36.77 per cent increased seed and stalk yield, respectively over recommended dose of fertilizer alone (RDF).

Keywords


Coastal Saline Soil, Vermicompost, RDF, Zinc, Manganese, Soil Application, Foliar Application, Sesame, Yield, Uptake.

References