Mulch-cum drip irrigation system for okra
dc.contributor.advisor | Jaikumaran, U | |
dc.contributor.author | Chandupatla Sunilkumar | |
dc.contributor.author | KAU | |
dc.date.accessioned | 2019-04-05T08:48:01Z | |
dc.date.available | 2019-04-05T08:48:01Z | |
dc.date.issued | 1998 | |
dc.description | PG | en_US |
dc.description.abstract | An experiment was conducted in the summer rice fallows of the Agricultural Research Station, Mannuthy during 1997 to develop and test mulch-cum-drip irrigation system for okra (Abelmoschus esculentus Moench.) and compare this system with drip without mulch or furrow irrigation system either with or without mulch. The soil was sandy clay loam, medium in organic carbon and available potassium and high in available phosphorus. The ten treatments comprised of combinations of two irrigation systems (Drip irrigation and furrow irrigation) and three irrigation frequencies (soil moisture tension at 0.04, 0.06 and 0.08 MPa) either with or without mulch. The experiment was laid out in randomised block design with three replications. In case of drip irrigation system 41ph emitters were placed 60 cm apart such that there was one emitter in between two plants. In mulched plots, after the formation of ridges, the field was covered with black LDPE sheet before sowing. Holes were made on this sheet at a spacing of 30 cm and seeds were dibbled through these holes. The study proved the beneficial effects of mulching in the vegetable crop bhindi, irrespective of the levels and methods of irrigations. Biometric characters like plant height, number of leaves and leaf area index and the yield attributing characters like number of flowers, number of fruits and total weight of fruits plant' were favourably influenced by mulching both under furrow and drip systems of irrigations, irrespective of levels of irrigation. The maximum fruit yield of 24.88 t ha-1 was produced when the crop was mulched and furrow irrigated at soil moisture tension of 0.08 MPa. This accounted for 93.48 per cent Increase in yield over the control crop that received irrigation by furrow method at 0.06 MPa without mulch. The crop under mulched situation consumed lesser amount of water compared to without mulch situations at all the frequencies of irrigations. This decline of consumptive use of water, was to the tune of 49, 97 and 192 percent respectively at the soil moisture tension of 0.04, 0.06 and 0.08 MPa in case of drip irrigation and 49, 97 and 135 per cent in case of furrow irrigation. Under drip irrigation the total soil moisture extracted from 0-15 and 15-30 cm layers was 30.68 to 49.56 and 50.43 to 69.31 per cent respectively in open situation. The respective values under mulched situation were 39.16 to 45.1 and 54.89 to 60.83 per cent. In case of furrow irrigation system the respective values were 35.58 to 47.39 and 52.60 to 64.41 under mulched situation and 41.01 and 58.98 per cent in unmulched situation. When mulching was adopted under drip irrigation or surface method of irrigation with the irrigation schedules at the soil moisture tensions of 0.04, 0.06 or 0.08 MPa, the cropping became profitable. Then, the B.C. ratios varied between 0.91 to 1.58. Maximum benefit cost ratio of 1.58 was derived when the crop was mulched and furrow irrigated at soil moisture tension of 0.08 MPa. | en_US |
dc.identifier.citation | 171320 | en_US |
dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/5810100556 | |
dc.keywords | Agronomy, okra, irrigation system of okra | en_US |
dc.language.iso | en | en_US |
dc.publisher | Department of Agronomy, College of Horticulture, Vellenikkara | en_US |
dc.sub | Agronomy | en_US |
dc.subject | null | en_US |
dc.theme | Mulch-cum drip irrigation system | en_US |
dc.these.type | M.Sc | en_US |
dc.title | Mulch-cum drip irrigation system for okra | en_US |
dc.type | Thesis | en_US |