RESUMO
An experimental study was conducted to investigate the effects of nitrogen fertilization on finger millet, with Significant nutrient losses, especially for nitrogen (N) fertilizers, occurring when chemical fertilizers are directly incorporated into the field. These losses primarily result from leaching and volatilization processes under this practice, crops tend to utilize only a fraction of the applied N fertilizers, typically ranging from 30 to 40%. These observations highlight the inefficiency of traditional fertilizer application methods and the need for improved nutrient management strategies to maximize nutrient utilization by crops and minimize environmental impacts. The study was conducted in Karunya Institute of Technology and Sciences Coimbatore. The experiment was laid out in Randomized block design (RBD) with seven treatments and replicated three times. The results of the study demonstrated that the treatment combining 50% neem-coated urea (NCU) and 50% nano urea (NU) in addition to phosphorus (P) and potassium (K) (T5) exhibited exceptional performance compared to the other treatments. This particular treatment displayed significant outcomes, including an increase in plant height of (93.7cm), improved leaf area index (3.95), greater total dry matter production (6443 kg/ha), a higher number of tillers (161.24/m2), increased productive tillers (94.2/m2), enhanced grain yield (4350 kg/ha), higher straw yield (5829 kg/ha), improved gross returns (143313 Rs/ha), a net return of (Rs. 88,247/ha), and a benefit-cost ratio of 2.60. On the other hand, the application of (75% Neem coated urea + 25% Nano urea + P and K) can be considered as a second option for obtaining higher yield and economics of growing finger millet.
RESUMO
A field experiment was conducted during rabi season of 2022 at Karunya Institute of Technology and Sciences, Coimbatore to study the performance of different pearl millet-based intercropping with legumes under rainfed condition. Greengram (Vigna radiata), cowpea (Vigna unguiculata) and redgram (Cajanus Cajan) were sown as intercrops in replacement series of 4:1 and 6:1 row ratio. The result of the study indicated that intercropping of blackgram and redgram with pearl millet in 4:1 gave higher total grain yield (25503.0 kg/ha) and stover yield (4927.1 kg/ha) compared to the sole cropping of pearl millet under rainfed condition. Other intercropping indices like grain equivalent yield, land equivalent ratio, relative crowding coefficient, competition index and income equivalent ratio were calculated. Intercropping system of pearl millet + blackgram (4:1) recorded the higher net returns (Rs. 81,621/ha) and B:C ratio (2.42).
RESUMO
The aim of this study was to examine the effect of integrated nutrient management on the growth and yield of irrigated black gram. Pulses are also known as food legumes and they are second only to cereals in terms of production and consumption in India. A field experiment was carried out at Research Farm of Karunya Institute of Technology and Sciences, Coimbatore, Tamil Nadu during rabi season, (2022-2023) to Effect of Integrated Nutrient Management on growth and yield of irrigated blackgram crop with seven treatments and three replications under Randomized block design (RBD). The results indicated that the treatment with 50% RDF + 25% farmyard manure (FYM) + 25% Vermicompost (T7) performed well among all the treatments and recorded higher plant height (36.73cm), total dry matter production (2325 kg ha-1), grain yield (930 kg ha-1), stover yield ( 1395 kg ha-1), number of pods (20.65). The net return (25892 Rs ha-1) and B:C ratio (1.88) was recorded higher in 100% RDF.