to investigate the effect of plant spacing and nitrogen level on growth parameters and green fodder yield of maize (Zea mays L.). The experiment comprised three plant spacings viz., 35 cm × 10 cm, 35 cm × 20 cm, 35 cm × 30 cm and three nitrogen levels viz., 100, 150 and 200 kg N ha-1. The experiment was laid out in a randomized complete block design with three replications. Results revealed that plant spacing, nitrogen levels and their interaction had significant effect on growth parameters and green fodder yield. The tallest plant (192.5 cm) was obtained at plant spacing 35 cm × 30 cm, while the highest fodder yield (61.13 t ha-1) of Z. mays was recorded at 35 cm × 10 cm spacing. In case of nitrogen level, the tallest plant (204.9 cm), the highest number of leaves plant-1 (12.22), the highest chlorophyll content in leaves (41.50) and the highest fodder yield (70.38 t ha-1) of Z. mays were recorded in 200 kg N ha-1. In case of interaction, the tallest plant (218.4 cm) of Z. mays was produced at spacing 35 cm × 30 cm along with 200 kg N ha-1. The highest fodder yield (78.01 t ha-1) of Z. mays was obtained at spacing 35 cm × 10 cm fertilized with 200 kg N ha-1 which was at par with spacing 35 cm × 20 cm fertilized with 200 kg N ha-1 and the lowest fodder yield (31.91 t ha-1) was obtained at spacing 35 cm × 30 cm along with 100 kg N ha-1. Therefore, spacing 35 cm × 10 cm fertilized with 200 kg N ha-1 appears as the promising practice for maize cultivation as fodder crop.

An experiment was conducted to study dry matter partitioning, yield and grain protein content of fine aromatic Boro rice (cv. BRRI dhan50) in response to nitrogen and potassium fertilization. The experiment consisted of four levels of nitrogen viz., 0, 50, 100 and 150 kg/ha and four levels of potassium viz., 0, 30, 60 and 90 kg/ha. The results revealed that at growth stage, the highest total dry matter partitioning and accumulation were obtained from 150 kg N/ha along with 90 kg K/ha at physiological maturity stage. At harvest, the highest number of tillers/hill (8.58), number of grains/panicle (113.9), grain yield (5.15 t/ha) and grain protein content (8.30%) were obtained from 100 kg N/ha along with 90 kg K/ha. Total dry matter partitioning and accumulation were greatly influenced by the application of 150 kg N/ha along with 90 kg K/ha. Application of 100 kg N/ha along with 90 kg K/ha interaction appeared as the promising practice in fine aromatic rice (cv. BRRI dhan50) cultivation in terms of yield and grain protein content.

An experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh, during December 2017 to May 2018 to study growth performance of aromatic Boro rice (cv. BRRI dhan50) in response to nitrogen and potassium fertilization. The experiment consisted of four levels of nitrogen viz., 0, 50, 100 and 150 kg ha-1, and four levels of potassium viz., 0, 30, 60 and 90 kg ha-1. The experiment was laid out in a randomized complete block design with three replications. The results revealed that nitrogen and potassium fertilization and their interaction exerted significant influence on growth performance of BRRI dhan50. Application of 100 kg N ha-1 produced the tallest plant (82.17 cm), the highest number of tillers hill-1 (10.08) and chlorophyll content (52.21) at heading stage. While, application of 90 kg K ha-1 produced the tallest plant (81.44 cm) at physiological maturity stage, the highest number of tillers hill-1 (9.66) and chlorophyll content (51.54) at heading stage. In case of interaction, the tallest plant (85.33 cm), the highest number of tillers hill-1 (10.83) and chlorophyll content (58.28) were obtained from 100 kg N ha-1 along with 90 kg K ha-1 at heading stage. Therefore, application of 100 kg N ha-1 along with 90 kg K ha-1 interaction appeared as the promising practice in aromatic rice (cv. BRRI dhan50) cultivation in terms of growth performance.

during the period from June to December 2014 with a view to finding out the effect of plant spacing and integrated nutrient management on the yield of Binadhan-14. The experiment consisted of three spacing viz., 25 cm × 15 cm, 20 cm × 20 cm and 20 cm × 15 cm and seven nutrient management viz., recommended dose of inorganic fertilizer @ 180-150-70-65-8 kg ha -1 of Urea-TSP-MoP-Gypsum-ZnSO 4 respectively, cowdung @ 10 t ha -1 , poultry manure @ 5 t ha -1 , 50% recommended dose of inorganic fertilizer + cowdung @ 5 t ha -1 , 50% recommended dose of inorganic fertilizer + poultry