Effect of Water Management Practice and Spacing on the Yield Performance of SRI Method of Rice Cultivation

摘要

An experiment was conducted at the Agronomy Field Laboratory of Bangladesh Agricultural University, Mymensingh to study the effect of water management practice and spacing on yield performance of BRRI dhan29. The experiment was laid out in a split-plot design with three replications. The treatments consisted of three factor, Factor A (Depth of Furrow) consists of tow treatments D₁-Shallow furrow (up to 3 cm deep), D₂- Medium furrow (up to 5 cm deep), Factor B (Intensity of Furrow) consists of five treatments F₁-Furrow made after 8 rows, F₂- Furrow made after 6 rows, F₃- Furrow made after 4 rows, F₄- Furrow made after 2 rows, F₅- No furrows (standard SRI irrigation), Factor C (Spacing) consists of two treatments S₂- 25cm x 25cm, S₂- 30cm x 20cm. In case of depth of furrow, the highest grain yield (5.766 t ha-1) was obtained from D₂ treatment and the lowest from D₁ treatment. On the other hand, the highest grain yield (6.287 t ha-1) was obtained from F₄ treatment in case of intensity of furrow and the lowest from F₁ treatment. But in the spacing treatment the highest yield (5.552 t ha-1) was obtained from S₁ spacing and the lowest from S₂ treatment. In the combined effect of depth of furrow and intensity of furrow; depth of furrow and spacing; intensity of furrow and spacing the highest grain yield (6.393 t ha-1) was obtained from combined effect of intensity of furrow and spacing and the combination of treatment was F₄xS₁. In case of combined effect of depth of furrow, intensity of furrow and spacing the highest grain yield (6.42 t ha-1) was obtained from D₂xF₄xS₁ treatment combination and the lowest grain yield (4.10 t ha-1) was obtained from D₁xF₅xS₂ treatment combination.