Integrated Nitrogen Management Influences the Yield Performance of Rice under Different Methods of Cultivation

Abstract

The field studies were conducted during 2012 and 2013 at Banaras Hindu University, Varanasi, Uttar Pradesh, India. The experiments were undertaken on two rice hybrids cultivated under two different establishment techniques with integrated nitrogen management to evaluate the growth dynamics, production potential and nutrient removal of rice. Results revealed that the system of rice intensification (SRI) and rice cv. Arize-6444 recorded significantly higher growth attributes viz., number of tillers hill-1, dry matter accumulation, crop growth rate and relative growth rate with almost yield attributes and yield with nutrient harvest index and total water productivity. The corresponding increment in grain and straw yield of rice under SRI to the tune of 14.66% and 13.12% over normal transplanting and rice hybrid Arize 6444 produced 8.63% and 5.32% higher grain and straw yield over PHB 71, respectively. Among the integrated nitrogen management practices, the application of 50% RDN+50% N through FYM+Azospirillum recorded significantly higher growth attributes, grain yield (6942 kg ha-1), protein content (7.80%), nutrient content, protein yield (542 kg ha-1) total nutrient uptake, total water productivity (5.90 kg/ha-mm) and nutrient harvest index of rice. The study concluded that the conjunctive application of inorganic fertilizer and organic manure with biofertilizer to rice hybrid ‘Arize-6444’ cultivation under SRI method for realizing higher yield of rice in eastern Uttar Pradesh.

Stability Analysis of Rice Hybrids for Grain Yield in Telangana through AMMI and GGE Bi-plot Model

“…However, among locations, Rudrur (E4) was found to be best location with highest mean grain yield (7509 kg ha -1 ) across genotypes followed by Rajendranagar (E5) (7018 kg ha -1 ), whereas Wanargal (E6) was poorest location with least mean grain yield (3959 kg ha -1 ). Jat et al, (2020) reported that Arize 2014) the average productivity of all the genotypes across environments was 6.84 t ha -1 . On the basis of environmental index value considering negative and positive, E4 and E3 were poor, E5 was medium and E2 and E1 were rich environments.…”

Effect of System of Rice Intensification and organic manure on growth and yield of Rice (Oryza sativa L.)

“…Imbalance and high level use of chemical or inorganic fertilizers had led to soil degradation problems, changes the soil biota which provide declining trend in the productivity of rice even when grown under adequate N,P &K application (Jat et al, 2020) The escalating prices of chemicals fertilizers and world energy crisis have diverted attention of agronomists and soil scientists to find out the other possible alternate source nutrients.…”

Energy Dynamics of Rice Production in Eastern India as Influenced by Resource Conserving Establishment Methods and Weed Management

“…Rice cultivation is in crisis all over the world and India with shrinking area, reduced water availability, escalating input cost, fluctuating production and stagnating yields (Thakur et al, 2016, Jat et al, 2020. The traditional method of rice growing by transplanting in puddled field is watercapital-and energy-intensive, besides deteriorating the soil health, adversely affecting soil physical properties, which can negatively affect the succeeding non-rice crop in rotation (Tripathi et al, 2005).…”