EFFECT OF PAN EVAPO-REPLENISHMENT BASED MICRO IRRIGATION AND FERTIGATION ON GROWTH, YIELD AND WATER USE EFFICIENCY OF NAGPUR MANDARIN IN CENTRAL INDIA
Keywords:Fertigation, Micro Irrigation, Nagpur Mandarin, Water use efficiency
A field experiment was conducted for two consecutive years to study the effect of different levels of pan evapo-replenishment based micro irrigation and fertigation on growth, yield and water use efficiency of Nagpur Mandarin in Central India. Experimental findings revealed that, with higher fruit yield efficiency (2.64 kg/m3 tree vol.) and water use efficiency (4.90 kg fruits/ tree/m3 water) I2 (micro-irrigation @ 80% of ET replenishment)treatment is best in combination with F2 (80% of RDF via. fertigation), F3 (90% of RDF via. fertigation) and F4 (100% of RDF via. fertigation). Whereas, I2F2 (80% micro-irrigation + 80% of RDF via. fertigation) can be considered as best treatment to save natural resources with economically viable yield as it has higher fruit yield efficiency (3.07 kg/m3 tree vol.) and statistically at par B: C ratio (2.76) with higher yielding treatments.
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