Effect of integrated nutrient management on the growth and yield of boro rice (Oryza sativa L.) cultivars

Abstract

For sustainable boro rice production in Bangladesh, a balanced fertilization to improve the current soil condition caused by mono-application of inorganic fertilizers and appropriate rice variety selection are very crucial. Therefore, an experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh, during the boro season of December 2016 to May 2017 to evaluate the effect of integrated nutrient management on two boro rice cultivars. The varieties were BRRI dhan28 and BRRI dhan29 and eight kinds of nutrient management viz., control (no fertilizers), recommended dose of inorganic fertilizers (120-60-40 N, P2O5, K2O kg ha-1 + gypsum 60 kg ha-1 and ZnSO4 @ 10 kg ha-1), full dose of poultry manure @ 5 t ha-1, cowdung @ 10 t ha-1, poultry manure @ 2.5 t ha-1 + 50% prilled urea and full dose of other inorganic fertilizers, cowdung @ 5 t ha-1 + 50% prilled urea and full dose of inorganic fertilizers, poultry manure @ 2.5 t ha-1 + 75% prilled urea and full dose of inorganic fertilizers, and cowdung @ 5 t ha-1 + 75% prilled urea and full dose of other inorganic fertilizers. The experiment was laid out in a split plot design with three replications. Result showed that, yield and yield components of boro rice were significantly influenced by variety, nutrient management and interaction of variety and nutrient management. In respect of grain yield, BRRI dhan29 produced the maximum yield (5.46 t ha-1). BRRI dhan28 showed poor performance with all characters and gave the minimum yield (4.07 t ha-1). In case of nutrient managements, the highest yield and yield component were obtained from poultry manure @ 2.5 t ha-1 + 50% prilled urea and full dose of inorganic fertilizers and produced the maximum grain yield (5.70 t ha-1). In the interaction of variety and integrated nutrient management, the highest grain yield (6.83 t ha-1) and straw yield (7.61 t ha-1) was obtained from poultry manure @ 2.5 t ha-1 + 50% prilled urea and full dose of inorganic fertilizers with BRRI dhan29 variety. So, BRRI dhan29 with 2.5 t ha-1 poultry manure + 50% prilled urea and full dose of the recommended inorganic fertilizers might be a promising practice for boro rice cultivation.

Yield Performance of Two HYV Transplant Aman Rice under Different Nutrient Management Practices

“…number of effective tillers hill -1 , number of grains panicle -1 and 1000-grain weight, which ultimately resulted in the highest grain yield. Application of manure along with inorganic fertilizers greatly influence the grain yield of rice were reported elsewhere (Yasmin et al, 2015;Pal et al, 2016;Roy et al, 2017;Chakraborty et al, 2020). On the other hand, Paul et al (2020) reported that soil aeration, water holding capacity and microbial activity of soil improved due to the application of poultry manure as an organic matter which ultimately increases nutrient uptake of the crop resulting in higher yield.…”

“…The research work was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University (24°75' N latitude and 90°50' E longitude at an altitude of 18 m above the sea level), Mymensingh which belongs to the non-calcareous dark grey floodplain soil under the Old Brahmaputra Floodplain Agroecological Zone (AEZ 9) (UNDP and FAO, 1988) during July to December 2017. The field was a medium high flat land with well drained silty-loam texture having pH, organic matter, total nitrogen, available phosphorus (P2O5) and potassium of the soil ranged from 5.9-6.5, 0.93%, 0.13%, 16.3 ppm and 0.28%, respectively (Chakraborty et al, 2020). The experiment consisted of two Aman rice varieties viz.…”

“…This result might be due to the genetic characteristics of the variety which were influenced by heredity. Panicle length was significantly influenced by variety (Shaha et al, 2014;Chakraborty et al, 2020). The highest number of grains panicle -1 (101.73) and total spikelets panicle -1 (113.86) was achieved from Binadhan-15, while the lowest number of grains panicle -1 (94.42) and total spikelets panicle -1 (107.00) was received in Binadhan-16.…”

Growth analysis of short duration transplanted Aus rice (cv. Parija) under three agronomic practices

“…The experimental site is located at 24° 75' N latitude and 90° 50' E longitude having an altitude of 18m belonging to the Old Brahmaputra Floodplain Agroecological Zone (AEZ-9) having non-calcareous dark grey floodplain soils (UNDP and FAO, 1998). The land was medium high having sandy loam texture with low organic matter content (0.93%) and the pH 6.8, nitrogen, phosphorus (P 2 O 5 ) and potassium of the soil ranged from 0.13%, 16.3 ppm and 0.28%, respectively (Chakraborty et al, 2020). The study consisted of two seeding densities viz.…”

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

“…Geographically the experimental site (24°75' N latitude and 90°50' E longitude at an altitude of 18 m) belongs to the non-calcareous dark grey floodplain soil under the Old Brahmaputra Floodplain Agroecological Zone (AEZ 9) (UNDP and FAO, 1988). The field was a medium high land with well drained silty-loam texture having pH 6.8 and the total nitrogen, available phosphorus (P 2 O 5 ), potassium and organic matter of the soil ranged from 0.13%, 16.3 ppm, 0.28% and 0.93%, respectively (Chakraborty et al, 2020). The experimental site is under the sub-tropical climate.…”