TY - JOUR AU - Alauddin, M AU - Mohsin, GM AU - Ali, AHM Zulfiquar AU - Rahman, MK PY - 2021/02/03 Y2 - 2024/03/29 TI - Effects of poultry litter compost and chemical fertilizers on growth and yield of field grown sunflower (Helianthus annus L.) JF - Dhaka University Journal of Biological Sciences JA - Dhaka Univ. J. Biol. Sci VL - 30 IS - 1 SE - Articles DO - 10.3329/dujbs.v30i1.51808 UR - https://www.banglajol.info/index.php/DUJBS/article/view/51808 SP - 49-57 AB - <p>A field experiment was carried out in the research farm of Charfasson Govt. College, Bhola during Rabi season in 2016-2017 to evaluate the effects of poultry litter (PL) compost and NPK fertilizers on growth and yield of sunflower <em>cv. </em>BARI-2 (Keroni-2). Sixteen treatments were used with three replications each. Treatments were T<sub>1</sub> : Control (-PL and –NPK), T<sub>2</sub> : 1.5 ton PL/ha, T<sub>3</sub> : 3.0 ton PL/ha, T<sub>4</sub> : 4.5 ton PL/ha, T<sub>5 </sub>: N<sub>40</sub>P<sub>30</sub>K<sub>50</sub> kg/ha, T<sub>6</sub> : N<sub>80</sub>P<sub>60</sub>K<sub>100</sub> kg/ha, T<sub>7</sub> : N<sub>120</sub>P<sub>90</sub>K<sub>150</sub> kg/ha, T<sub>8</sub> : 1.5ton PL/ha + N<sub>40</sub>P<sub>30</sub>K<sub>50</sub> kg/ha, T<sub>9</sub> : 1.5 ton PL/ha + N<sub>80</sub>P<sub>60</sub>K<sub>100</sub> kg/ha, T<sub>10</sub> : 1.5 ton PL/ha + N<sub>120</sub>P<sub>90</sub>K<sub>150</sub> kg/ha, T<sub>11</sub> : 3.0 ton PL/ha +N<sub>40</sub>P<sub>30</sub>K<sub>50</sub> kg/ha, T<sub>12</sub> : 3.0 ton PL/ha + N<sub>80</sub>P<sub>60</sub>K<sub>100</sub> kg/ha, T<sub>13</sub> : 3.0 ton PL/ha + N<sub>120</sub>P<sub>90</sub>K<sub>150</sub> kg/ha, T<sub>14</sub> : 4.5 ton PL/ha + N<sub>40</sub>P<sub>30</sub>K<sub>50</sub> kg/ha, T<sub>15</sub> : 4.5 ton PL/ha + N<sub>80</sub>P<sub>60</sub>K<sub>100</sub> kg/ha and T<sub>16</sub> : 4.5 ton PL/ha + N<sub>120</sub>P<sub>90</sub>K<sub>150</sub> kg/ha. Plant height (204.3 cm), number of leaf (44.8/plant), leaf area (376.4 cm<sup>2</sup>/plant), leaf area index (13.61), dry weight of stem (61.57 g/plant), root (12.66 g/plant), leaf (21.47 g/plant), petiole (8.7 g/plant), total dry matter production (134.0 g/plant) were found highest in T<sub>16</sub> treatment. On the contrary, dry weight of inflorescence (32.6 g/plant), dry weight of seed (44.4 g/plant) and number of seeds (663/plant) were found highest in T<sub>13</sub> and T<sub>14</sub> treatments, respectively. Higher dry weight of 100 seeds (7.4 g) and diameter of inflorescence (54 cm) were also found in T<sub>13</sub> treatment. Although highest value was found in T<sub>16</sub> treatment, but T<sub>16</sub> and T<sub>13</sub> were not significantly (p &gt; 0.05) different, it can be treated as best (T<sub>13</sub>) for future trial. The overall findings of this study indicated that organic fertilizer (poultry litter) in combination with inorganic fertilizers may be a good indicator to achieve better agronomic and yield parameters of sunflower plants under southern coastal edaphic conditions of Bangladesh.</p><p>Dhaka Univ. J. Biol. Sci. <strong>30</strong>(1): 49-57, 2021 (January)</p> ER -