PJB-2022-311
EFFECT OF IRRIGATION INTERVALS AND MULCHING MATERIAL ON THE PERFORMANCE OF OKRA
Naveed Khan
Abstract
A field trial on “effect of irrigation intervals and mulching Material on the performance of okra†was carried out at experimental Farm of Agriculture Research Station, Harichand Charsadda, during the year 2021. The experiment was carried out in randomized complete block design with a spilt-plot arrangement having two factors, and three replications. The two factors were different irrigation interval having three levels (5, 10 and 15 days) and organic mulching also having three levels (no mulch, wood chips and straw mulch). The results showed that growth and production of okra was significantly affected by different irrigation intervals and organic mulching, while their interaction was not significant. Among various irrigation intervals, maximum number of branches plant-1 (3.29), number of leaves plant-1 (26.32), plant height (137.1 cm), leaf area (5428.5 cm2), chlorophyll content (52.1 SPAD), pod diameter (2.41 cm), pod length (12.46 cm), number of picking plants-1 (18.1), and yield (15.5 tons ha-1) with minimum days to 50% flowering (48.8) and days to first picking (56.2) were recorded in okra plants when irrigated at 10 day interval. While minimum number of branches plant-1 (3.05), number of leaves plant-1 (24.3), plant height (129.4 cm), leaf area (4933.9 cm2), chlorophyll content (48.8 SPAD), pod diameter (2.18 cm), pod length (11.6 cm), number of picking plants-1 (16.8), and yield (14.0 tons ha-1) with maximum days to 50% flowering (51.0) and days to first picking (58.9) were recorded in okra plants when irrigated at 15 day interval. In case of organic mulching, maximum number of branches (3.58), number of leaves plant-1 (28.6) plant height (139.8 cm), leaf area (5722.5 cm2), chlorophyll content (52.7 SPAD), pod diameter (2.60 cm), pod length (13.4 cm), number of picking plants-1 (18.2), and yield (16.3 tons ha-1) with minimum days to 50% flowering (47.9) and days to first picking (55.3) were recorded in okra plants when mulched with wood chips. While minimum number of branches plant-1 (2.55), number of leaves plant-1 (20.5), plant height (121.2 cm), leaf area (4464.4 cm2), chlorophyll content (46.0 SPAD), pod diameter (1.86 cm), pod length (10.0 cm), number of picking plants-1 (15.9), and yield (12.6 tons ha-1) with maximum days to 50% flowering (53.2) and days to first picking (61.3) were recorded in okra plants when no mulch used. From the results it is concluded that wood chips and irrigation at 10 days interval significantly enhanced all vegetative attribute and yield of okra.
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