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sur le développement des zones arides et semi-arides

Titre : Precision fertigation management for cabbage (brassica oleracea var. capitata) under semi-arid tropics of Maharashtra

Auteur : Jadhav, Sumant Baburao

Université de soutenance : Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani

Grade : Doctor of Philosophy (PhD) Agricultural Engineering 2020

Résumé partiel
Water and nutrients are the basic needs of any crop. Cabbage, one of the most important vegetable crops, is very sensitive to moisture and nutrients stress. It requires comparatively more water and nutrients in precise quantity and at appropriate time. Nevertheless water scarcity and high input cost of fertilizer are the major constraints in increasing the area, production and productivity of cabbage. In order to get rid of these constraints irrigation with fertigation through drip is the most suitable option, which can save water and fertilizer in addition to increase in the area along with increasing productivity. Much of work has been done on growth and yield response of various vegetable crops under drip including scheduling. Most of the field studies were conducted with irrigation levels based on pan evaporation data. However the studies on irrigation schedule based on crop coefficient and real time evapotranspiration data and fertigation scheduling are limited. Similarly the work on vegetable crop growth simulation under various full and deficit water and fertilizer conditions are scanty. After calibration and validation, the crop growth simulation model can be used to predict the effects of drip irrigation and fertigation levels on the water requirement and the crop yield. In view of the above points, the present experiment entitled “Precision fertigation management for cabbage (Brassica Oleracea var. Capitata) under semi-arid tropics of Maharashtra” was conducted during 2016-2017 and 2017-2018 to investigate the response of cabbage for varying irrigation schedules and fertigation levels during the winter season at AICRP on Water Management, VNMKV, Parbhani. The experimental design was split plot with five irrigation schedules (0.4, 0.6, 0.8, 1.0 and 1.2 ETc) as main factor and and three fertigation levels (75, 100 and 125% RDF) as sub factors

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