BENEFIT COST RATIO AS INFLUENCED BY DIFFERENT IRRIGATION AND FERTIGATION LEVELS ON GUAVA CV. VNR BHIHI

B. CHENNAKESAVULU¹*, G. RAVI BABU², A. MANI³, D.V. SWAMI⁴, K. UMAKRISHNA^5
1Department of Agricultural Engineering, College of Horticulture, Dr Y.S.R. Horticultural University, Venkataramannagudem, 534 101, Andhra Pradesh, India
²Department of Soil and Water Conservation Engineering, College of Agricultural Engineering, Madakasira, 515301, Acharya N.G. Ranga Agricultural University, Lam, Guntur, 522 034, India
³Department of Soil and Water Conservation Engineering, Dr N.T.R.College of Agricultural Engineering, Bapatla, 522101, Acharya N.G. Ranga Agricultural University, Lam, Guntur, 522 034, India
⁴Department of Post Harvest Technology, Dr Y.S.R. Horticultural University, Venkataramannagudem, 534 101, Andhra Pradesh, India
⁵Department of Agricultural Statitics, College of Horticulture, Dr Y.S.R. Horticultural University, Venkataramannagudem, 534 101, Andhra Pradesh, India
* Corresponding Author : chennakesavulub7@gmail.com

Received : 01-01-2021     Accepted : 26-01-2021     Published : 30-01-2021
Volume : 13     Issue : 1       Pages : 801 - 803
Genetics 13.1 (2021):801-803

Keywords : Drip irrigation, Fertigation, Benefit cost ratio and Yield
Academic Editor : Prof Dr Suleyman Cylek, Dr R. K. Mathukia
Conflict of Interest : None declared
Acknowledgements/Funding : Authors are thankful to Department of Agricultural Engineering, College of Horticulture, Dr Y.S.R. Horticultural University, Venkataramannagudem, 534 101, Andhra Pradesh, India. Authors are also thankful to Department of Soil and Water Conservation Engineering, College of Agricultural Engineering, Madakasira, 515301, Acharya N.G. Ranga Agricultural University, Lam, Guntur, 522 034, India
Author Contribution : All authors equally contributed

A research experiment was conducted during kharif and rabi seasons of 2018 -2019 to study the influence of irrigation and fertigation scheduling on yield and benefit cost ratio of guava (Psidium guajava L.). The experiments were laid out in factorial randomized block design with sixteen treatment combinations which included four irrigation levels (120 %, 100 %, 80 % and 60 % of ET) along with four fertigation levels 120 %, 100 %, 80 % and 60 % of RDF(240,160,160 g of NPK/ plant/ year) .The nitrogen, phosphorus and potassium (NPK) fertilizers were applied through fertigation as well as soil application to test various attributes of 2 years old guava cv. VNR Bhihi under high density planting system three replication. The highest benefit cost ratio 4.31 was recorded in I2F1 (irrigation at 100 % of ET + 288, 192, 192 g of NPK water soluble fertilizers) treatment while lowest benefit cost ratio 2.15 was observed in I4F4 treatment (irrigation at 60 % of ET irrigation + 30, 10, 10 g NPK water soluble fertilizers). Similarly, Lowest payback period 23 months was recorded in I2F1 (irrigation at 100 % of ET + 288, 192, 192 g of NPK water soluble fertilizers) treatment while highest payback period 38 months was noticed in I4F4 treatment (irrigation at 60 % of ET irrigation + 30, 10, 10 g NPK water soluble fertilizers)

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