Effect of different fertilizer doses on the production of Chaite-5 paddy variety in Dhanusha District, Nepal

Abstract

The application of inorganic nutrient sources is necessary for proper agricultural growth that can ensure high quality food production. A field experiment was carried out in Hansapur, Dhanusha from March 2021 to July 2021 to study the effect of different fertilizer doses on the growth and yield of rice. The experiment was set up in a randomized complete block design (RCBD) with 7 different treatments following three replications. The treatments were named as T1: Control, T2: RDF (Recommended dose of fertilizers - 100:30:30 kg NPK/ha), T3: Double dose of RDF (200: 60: 60 kg NPK/ha), T4: A half dose of RDF (50: 15: 15 kg NPK/ha), T5: 125% dose of RDF (125: 37.5: 37.5 kg NPK/ha), T6: Locally available Azolla (300 kg/ha), and T7: FYM (6 ton/ha), respectively. Different doses of RDF showed a significant effect on growth, yield, and yield contributing characters of Chaite-5 variety. Results of the study showed that the application of a double dose of RDF (200: 60: 60 kg NPK/ha) gave the maximum yield (9.50 ton/ha). It was also recorded that 125% dose of RDF, recommended dose of fertilizers and FYM gave satisfactory results. Results revealed that the highest plant height, effective tillers/hill, panicle number, panicle length, total spikelet/hill, 1000-grain weight, grain yield, and straw yield were obtained from the use of a double dose of RDF (200: 60: 60 kg NPK/ha). It was observed that yield of rice can be increased substantially with the application of higher doses of nitrogenous fertilizers. Hence, a double dose of fertilizer can be the best supplement for improving growth and yield in rice.

Integrating nitrogen fertilization with crop residue management to improve nitrogen-use efficiency of crops

“…Several research studies have sought to rationalize N fertilization of rice globally, which has an impact on the production (Qichun & Guang-huo, 2002;Dai et al, 2003;Lassaletta et al, 2014) Adhikari et al (2021). reported that the highest rice yield in Nepal was observed in response RD and 125RD treatments, which is very much analogous to our study results.…”

Evaluating the impact of various biofertilizer sources on growth and yield attributes of spring rice (Oryza sativa L.) in Eastern Terai of Nepal

“…Due to the growing population in the country, the existing rice production is inadequate to meet the food requirements. To fulfil the growing food demand in the nation, it should be prioritized to increase productivity per unit area given the constraints on extending cultivable land (Adhikari et al, 2021). Nepal must increase its rice output by more than 6.0 million tons by 2020 to meet the demands of its growing population (Devkota et al, 2019).…”