G. Manikandan, N. Senthil Kumar, P. Poonkodi, M. Thiruppathi, M.V. Sriramachandrasekharan and Arun Kumar S.
Abstract
In order to evaluate the effects of inorganic and organic source with enhancing the growth and yield of rice. The field experiment was conducted in farmerâs field at Varagurpettai Village, Chidambaram (TK), Cuddalore (DT). The experiment with randomized block design with three replications using rice variety ASD-16 in the seasonâs Rabi 2023. The treatment details namely, T1âAbsolute control, T2 - Optimized RDF (113% NPK) + poultry manure @ 5 t ha-1, T3 - Optimized RDF (113% NPK) + poultry manure @ 5 t ha-1 + NPK Consortia 1 litre ha-1, T4 - Optimized RDF (113% NPK) + poultry manure @ 5 t ha-1 + Nanozinc 0.2 % (2FS), T5- Optimized RDF (113% NPK) + poultry manure @ 5 t ha-1 + Soil Application ZnSO4 37.5 kg ha-1, T6 - Optimized RDF (113% NPK) + poultry manure @ 5 t ha-1 + Nanozinc 0.2 % (2FS) + Soil application ZnSO4 37.5 kg ha-1, T7 - Optimized RDF (113% NPK) + poultry manure @ 5 t ha-1+ NPK Consortia 1 litre ha-1 Nanozinc 0.2 % (2FS), T8 - Optimized RDF (113% NPK) + poultry manure @ 5 t ha-1 + NPK Consortia 1 litre ha-1+ Soil application ZnSo4 37.5 kg ha-1, T9 - Optimized RDF (113% NPK) + poultry manure @ 5 t ha-1 +NPK Consortia 1 litre ha-1 + Nanozinc 0.2 % (2FS)+ Soil application ZnSO4 37.5 kg ha-1. The initial pH and EC of the soil status was registered 8.0 and 1.9 d Sm-1. The initial status of available N (139 kg ha-1), P (8.9 kg ha-1) and K (178 kg ha-1) was recorded. The micronutrients such as DTPA-Zn, Fe, Cu and Mn content of the soil which recorded 0.69, 12.30, 0.49 and 9.21 mg kg-1. The results showed that growth, yield and yield attributes of rice was superiorly increased by the application of T9 - Optimized RDF (113% NPK) + poultry manure @ 5 t ha-1 + NPK Consortia 1 litre ha-1 + Nanozinc 0.2 % (2FS) + Soil application ZnSO4 37.5 kg ha-1. The lowest growth and yield was observed (T1) Treatment.