Indian Journal of Geosynthetics and Ground Improvement
Year : 2019, Volume : 8, Issue : 1
First page : ( 10) Last page : ( 13)
Print ISSN : 2277-5625. Online ISSN : 2277-5633.

Conservation trenches and its effects on plantation crop in degraded watershed in Kandhamal District of Odisha

Subudhi C.R.

Department of Soil and Water Conservation Engineering, Collage of Agricultural Engineering, OUAT, Bhubaneswar, Odisha, India

Online published on 13 January, 2020.

Abstract

Kandhamal district situated in central part of Orissa receives an annual rainfall of 1396mm and this region is highly prone to soil and runoff loss due to heavy rainfall during kharif. A trial was conducted during 2001–04 to study the effect of conservation trenches on plantation crop. This trial was conducted on farmers field of Sudreju village of Kandhamal district under National Agricultural Technology Project (NATP, RRPS-7) with the following objectives.1. To conserve moisture for establishment of plantation crop. 2. To reduce erosion from upstream area.3 To increase production of timber, fruit species, fuel wood and fodder. The following treatments were tried.1. No treatment.2. Continuous V-ditches at 10m horizontal interval.3 Continuous V-ditches at 20m horizontal interval.4.V-ditches staggered at 5m horizontal interval. 5 V-ditches staggered at 10m horizontal interval. Mango varieties Pusa Amrapalli was tried during kharif and during, rabi Black gram (PU-30) was tried in between mango rows. It is observed that in, cont. contour V-ditch at 10m interval rate of growth was 2.06 cm/month in case of Amrapalli, which is 46% higher compared to control. The grain yield of niger, black gram & mustard are 33.4%, 23.5% &26.6% higher than control respectively. Though the cost of construction is little high it is recommended to practice contour V-ditch at 10m intervals, to conserve soil and moisture and to get more grain yield in degraded watershed of Kandhamal district.

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