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2018, vol. 55, iss. 3, pp. 130-134
Effect of drip irrigation on yield and evapotranspiration of fibre hemp (Cannabis sativa L.)
aUniversity of Novi Sad, Faculty of Agriculture
bInstitute of Field and Vegetable Crops, Novi Sad

emailksenija@polj.uns.ac.rs
Project:
Improvement of field forage crops agronomy and grassland management (MESTD - 31016)

Abstract
The experiments showing the effect of drip irrigation on yield and evapotranspiration of fibre hemp (Cannabis sativa L.) were conducted at the experimental field of the Alternative Crops Department, Institute of Field and Vegetable Crops, Novi Sad, Serbia. Irrigation was based on the water balance method. Daily evapotranspiration (ETd) was computed from the reference evapotranspiration (ETo) and crop coefficient (kc) 0.5, 0.9 and 1.1 from sowing to 3-4 pair of leaves, from 3-4 pair of leaves to appearance of male flowers and from appearance of male flowers to the end of the season, respectively. ETo was calculated using Hargreaves equation. The irrigation depth was restricted to the soil depth of 0.4 m. In other words, irrigation started when readily available water in the soil layer of 0.4 m was completely depleted by plants. The irrigation rate was 30 mm at the beginning of the season, 40 mm in the middle of the season, and the amount of water added by irrigation was 320 mm during the entire season. Irrigation significantly affected the yield of fresh stems, fresh leaves, flowers and plant height, but not stem diameter and fibre content. Water used on evapotranspiration in irrigation conditions (ETm) was 470 mm, while in non-irrigated control variant it amounted to 129 mm (ETa). These preliminary results could be used as a good platform for hemp growers in the region, in terms of optimizing the use of irrigation water.
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About

article language: English
document type: Original Scientific Paper
DOI: 10.5937/RatPov1803130P
published in SCIndeks: 07/03/2019
peer review method: double-blind
Creative Commons License 4.0