TY - JOUR AU - Haque, MA AU - Hossen, A AU - Islam, MS AU - Hashem, MA PY - 2022/03/03 Y2 - 2024/03/28 TI - Effect of different residues based vermicompost with chemical fertilizer on the growth and yield of T. aman rice JF - Progressive Agriculture JA - Progress. Agric. VL - 32 IS - 2 SE - Crop Science DO - 10.3329/pa.v32i2.58394 UR - https://banglajol.info/index.php/PA/article/view/58394 SP - 96-106 AB - <p>A field experiment was conducted to reduce the chemical fertilizers with the integrated use of vermicompost and chemical fertilizers in <em>T. aman</em> rice cultivation. The research was conducted at the Soil Science Division, Bangladesh Institute of Nuclear Agriculture (BINA), Mymensingh during the <em>T. aman</em> season of 2019-20 at BINA farm Mymensingh. Six treatments were used in the experiment. These were T<sub>1</sub>: Native soil fertility, T<sub>2</sub>: 100% N from Chemical Fertilizer (CF), T<sub>3</sub>:70%N from CF, T<sub>4</sub>: 30% N from vermicompost-3 + 70% N from CF and T<sub>5</sub>:30% N from vermicompost-4 + 70% N from CF and T<sub>6</sub>: 100% PKS only. The experiments were conducted in a Randomized Complete Block Design with three replications. The test crop was <em>T. aman</em> rice (Binadhan-17). The treatment T<sub>5 </sub>gave maximum grain yield (5.5 t ha<sup>-1</sup>) of <em>T. aman</em> rice followed by 5.4 t ha<sup>-1 </sup>that did by the treatment T<sub>4</sub>. But the treatments T<sub>5</sub>, T<sub>4</sub> and T<sub>2</sub> gave identical grain yields of <em>T. aman</em> rice. Similar results were observed in case of straw yields of <em>T. aman</em> rice. The maximum total N, P, K and S uptake were also noted with the treatment T<sub>5</sub> (30% N from vermicompost-4 + 70% N from CF) followed by the treatment T<sub>4</sub> (30% N from vermicompost-3 + 70% N from CF) which were comparable with the treatment T<sub>2</sub> (100% chemical fertilizer). The result indicated that 30% N from either vermicompost-3 or vermicompost-4 with 70% N from CF gave comparable yields to the sole application of 100% N from CF alone. Therefore, overall 30% chemical fertilizers (N, P, K and S) could be saved with the integrated use of vermicompost-3 or vermicompost-4 following IPNS in the cultivation of <em>T. aman</em> rice.</p><p><strong><em>Progressive Agriculture 32 (2): 96-106, 2021</em></strong></p> ER -