Growth, Yield and Proximate Composition of Aromatic Rice as Influenced by Inorganic and Organic Fertilizer Management

Abstract

Integrated use of organic and inorganic fertilizers can improve crop productivity and sustain soil health and fertility. To gain insights into the response of green manure and chemical fertilizer, the present study was conducted to evaluate the growth, yield and proximate composition of aromatic rice varieties in Aman season at the research farm of Sher-e-Bangla Agricultural University, Dhaka, Bangladesh during the period from July to December 2014. The experiment was set up in split-plot design with three aromatic rice varieties in main plots and six fertilizer levels in subplots. ‘Raniselute’ variety produced the highest plant height, dry matter weight hill-1, straw yield (7.81 t ha-1), biological yield (9.05 t ha-1), ash (1.59%), and fat content (2.81%). ‘BRRI dhan34’ gave the maximum number of effective tillers hill-1 (12.74), panicle length (27.93 cm), number of filled grains panicle-1 (192.5), 1,000-grain weight (17.22 g), grain yield (2.26 t ha-1), harvest index (29.99%), and carbohydrate content (77.63%). Application of 80% recommended doses of NPKSZn + green manure 3.5 t ha-1 showed better performance for getting the maximum growth, yield components and yield compared to other treatments. Recommended doses of NPKSZn showed the highest carbohydrate content (77.63%) and lowest moisture (8.75%) and ash content (1.29%). The maximum fat content (3.07%) and minimum carbohydrate content (76.53%) was obtained from 60% recommended doses of NPKSZn + green manure 7 t ha-1. Application of 20 and 40% recommended doses of NPKSZn + green manure 14 and 10.5 t ha-1 produced the highest moisture content (10.43%) and lowest protein content (8.26%) in rice grain. Green manure 17.5 t ha-1 produced the highest ash (1.79%), protein content (9.06%) and lowest fat content (2.51%).

Integrated nutrient management practices affect the growth performance of aromatic fine rice varieties in Boro season

“…BRRI dhan63 produced the highest dry matter hill -1 (15.39 g) followed by BRRI dhan50 (12.78 g) which was as good as Basmati (12.84 g) at 85 DAT (Figure 5). Similar results were reported by Sumon et al (2018) who reported that dry matter production hill -1 differed due to varietal characteristics.…”

Integrated Nutrient Management Improves the Growth and Yield of Rice and Greengram in a Rice—Greengram Cropping System under the Coastal Plain Agro-Climatic Condition

“…It also escalates the differentiation process from the somatic to the reproductive phase, leading to higher grain and straw yield of aromatic rice. Sumon et al [ 42 ] and Sharma et al [ 43 ] also opined that INM involving FYM and green manuring is imminent for sustainably increasing rice yield. An increase in rice grain yield due to green manure incorporation might be attributed to the release of nutrients to soils slowly for a longer period after decomposition, resulting in better yield attributes.…”

Response of nitrogen and potassium fertilization on the growth performance of aromatic Boro rice

“…Rice (Oryza sativa L.) is the most important cereal food crop which feeds the world's half of the population providing 35-60% of the total caloric requirements (Tayefe et al, 2014). In Bangladesh, rice is consumed as staple food since it is the main source of food and has incredible influence on its agrarian economy (Sumon et al, 2018;Paul et al, 2021). Approximately, 36.60 million tons of rice is produced from 11.42 million hectares of land in Bangladesh (BBS, 2020) of which Aus, Aman, and Boro rice covers 1.10, 5.56, and 4.76 million hectares of land with the production of 2.…”