RESUMEN
A field experiment was conducted during the rabi season of 2022 at Karunya Institute of Technology and Sciences, Division of Agronomy, Coimbatore, to study the different sources of organic manures in comparison with RDF on growth and yield of sorghum (Sorghum bicolor (L.) Moench). The experiment was laid out in a randomized block design with eight treatments and replicated thrice. The treatment consisted of T1 - Absolute control, T2 - RDF 100% (Inorganic), T3 - Vermicompost 100% on N equivalent basis, T4 - Farmyard manure 100% on N equivalent basis, T5 - Farmyard manure 50% + Vermicompost 50%, T6 - RDF 50% + Farmyard manure 50%, T7 - RDF 50% + Vermicompost 50%, T8 - RDF 50% + Farmyard manure 25% + Vermicompost 25%. Therefore from this experiment the results concluded that application of RDF 100% (Inorganic) significantly recorded maximum plant height (228.76 cm), total dry matter production (13485 kg ha-1), leaf area index (LAI) (5.80), chlorophyll content (SPAD) (37.89), grain yield (3770 kg ha-1) and straw yield (6600 kg ha-1) respectively.
RESUMEN
Field experiments were conducted at the South farm in Karunya Institute of Technology and Sciences, Division of Agronomy, Coimbatore, during the Rabi season of 2022. The experimental site is situated in the western agro-climatic zone of Tamil Nadu, at a latitude of 10°56'N and longitude of 76°44'E, with an elevation of 474 meters above mean sea level. The soil composition of the experimental field was identified as clay loam, moderately drained, and exhibited low availability of nitrogen (202 kg/ha), high availability of phosphorus (12.3 kg/ha), medium availability of potassium (415 kg/ha), and organic carbon content of 0.51%. The experiment followed a randomized block design (RBD) with 10 treatment groups, each replicated three times viz.,T1 - Control, T2 - Vermicompost 100% (on N Equivalent basis)+ Cowdung slurry, T3 -Vermicompost100% (on N Equivalent basis)+TNAU Biomineralizer,T4 -Vermicompost100% (on N Equivalent basis) + (Effective microorganism),T5 - Vermicompost 100% (on N Equivalent basis) + Pleurotus sp + Urea, T6- Vermicompost (50%) +RDF (50%) + Cowdung slurry, T7- Vermicompost (50%) +RDF (50%) + TNAU Biomineralizer, T8 -Vermicompost (50%) + RDF (50%) + EM (Effective Microorganism),T9 -Vermicompost (50%) + RDF (50%) + Pleurotus sp ,T10 - RDF alone. The objective of the study was to investigate the impact of vermicompost and other foliar applications on the growth, physiological characteristics, and yield parameters of an irrigated Black gram (VBN8 variety). The promotion of yield can be attributed to the increased vegetative growth and the balanced carbon-to-nitrogen (C: N) ratio, which likely stimulated the synthesis of carbohydrates. This, in turn, facilitated the overall improvement in seed yield. The application of RDF played a significant role in enhancing growth, leading to various positive changes in yield-related characteristics. Ultimately, the increased seed yield observed can be largely attributed to the improved plant growth and subsequent positive effects on yield-related attributes resulting from the RDF application. Thus, From this Experiment it was Concluded that the RDF (T10) Shows a highest range in growth, physiological and yield parameters of irrigated Blackgram due.
RESUMEN
A field experiment was conducted at agronomy research farm of Karunya Institute of Technology and Sciences, Coimbatore during rabi season 2022 in order to look into the influence by inorganic fertilizer and various organic inputs on the crop growth and yield compared to organic fertilizer in greengram under irrigation. The experiment comprised of ten treatments viz. T1 : Absolute control, T2 : Vermicompost 100% + 2% Cowdung slurry, T3 : Vermicompost 100% + 2% biomineralizer,T4 : Vermicompost 100% + 2% EM solution, T5 : Vermicompost 100% + 2% pleurotus sp, T6 : Vermicompost 50% + RDF 50% + 2% Cowdung slurry, T7 : Vermicompost 50% + RDF 50% + 2% biomineralizer, T8 : Vermicompost 50% + RDF 50% + EM solution, T9 : Vermicompost 50% + RDF 50% + pleurotus sp and T10 : RDF alone were arranged in Randomized Block Design and replicated three times. Data was collected in 20, 40 DAS and at harvest stage of greengram crop. Results in all the growth parameters, yield and its attributes and economics had a significant influence under the inorganic fertilizer (100% RDF). The plant height (65.8 cm), dry matter accumulation (3871 kg ha-1) and number of pods/plant (12.32), number of grains/pod (7.2), grain yield (981 kg ha -1), haulm yield (2538 kg ha -1) of greengram were recorded in T10. On the basis of economics, the maximum gross returns (Rs.68670 ha -1), net returns (Rs. 39441 ha -1) and B: C ratio (2.34) was recorded under treatment (100% RDF).
RESUMEN
The field experiment was conducted to evaluate the different sources of organic manures in comparison with recommended dose fertilizer (RDF) on greengram at South farm, Karunya Institute of Technology and Science, Coimbatore, India. The field experiment was laid out in Randomized Block Design and replicated thrice during kharif and rabi seasons of 2022. The field study comprised of nine treatments, two organic treatments with sole organic manures at 100% on N equivalent basis (vermicompost, farmyard manure) another three treatments consisted of 25%, 50% and 75% combination of each manure. These two organic manures (vermicompost, farmyard manure) were combined with 50% RDF through inorganic fertilizers (12.5:25:12.5 of N, P2O5 and K2O kg ha-1) as a combination of organic and inorganic treatments and one sole 100% inorganic treatment through inorganic fertilizer (25:50:25 of N, P2O5 and K2O kg ha-1). A control treatment was maintained in the layout to compare the performance of all the treatments. The results showed that among the different combinations of organic and inorganic treatments, 100% recommended dose of fertilizer through inorganic (25:50:25 of N, P2O5 and K2O kg ha-1) (T7) fertilizer significantly enhanced the growth and yield of greengram which was closely followed by vermicompost 100% on N equivalent basis.