Vol. 9 (6) : November-December 2018 issue
Green Farming Vol. 9 (6) : 973-977 ; November-December, 2018
A climatological approach based irrigation scheduling on groundnut (Arachis hypogaea L.) in rabi season
P. BALASUBRAMANIANa1*, R. BABUb2, C.R. CHINNAMUTHUc3, K. KUMUTHAd4 and P.P. MAHENDRANe5
aDepartment of Agronomy, bDepartment of Farm Management, dDepartment of Agricultural Microbiology, Agriculture College & Research Institute, Madurai - 625 104 (Tamil Nadu),
cDepartment of Agronomy, Directorate of Crop Management, Tamil Nadu Agricultural University, Coimbatore - 641 003 (Tamil Nadu),
eMother Terasa College of Agriculture, Mettusalai, llluppur, Pudukkottai - 622 102 (Tamil Nadu)
Designation : 1Ph.D. Scholar *(agribalatnau1991@gmail.com), 2,3,4Professor and Head, 5Dean
Subject : Agronomy and Crop Production
Paper No. : P-7464
Total Pages : 5
Received : 24 October 2018
Revised accepted : 19 November 2018
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Citation :
P. BALASUBRAMANIAN, R. BABU, C.R. CHINNAMUTHU, K. KUMUTHA and P.P. MAHENDRAN. 2018. A climatological approach based irrigation scheduling on groundnut (Arachis hypogaea L.) in rabi season. Green Farming Vol. 9 (6) : 973-977 ; November-December, 2018
ABSTRACT
A field experiment was conducted at Department of Farm Management, Agricultural College and Research Institute, Madurai, Tamil Nadu during rabi season years of 2017-18. To study the effect of irrigation scheduling and nutrient management practices on growth, yield, water use and economics of rabi 2017-18 season on groundnut crop (Arachis hypogaea L.). The treatments were included at three levels of irrigation scheduling of 0.8 IW/CPE (I1), 0.6 IW/CPE (I2) and 0.4 IW/CPE (I3) and fertilizer treatments viz., N1 - 75 RDF + 5 tons charred rice husk, N2 - 50 RDF + 5 tons charred rice husk, N3 - 75 RDF+ 5 tons charred rice husk along AM and N4 - 75 RDF+ 5 tons charred rice husk along AM. IW/CPE denotes the ratio between a fixed amount of irrigation water (IW) and cumulative pan evaporation from US Weather Bureau Class B Open Pan. The recommended dose of fertilizer was applied through basal along. The pod and haulm yields of groundnut crop was significantly increased with treatment of 0.8 IW/CPE + 75 RDF + 5 tons charred rice husk along AM (I1N3) compared to 0.4 IW/CPE + 50 RDF+ 5 tons charred rice husk (I3N2). The increase in pod yield was upto 25% and haulm yield 9% with treatment of 0.8 IW/CPE + 75 RDF+ 5 tons charred rice husk along AM (I1N3) over treatment of 0.4 IW/CPE + 50 RDF + 5 tons charred rice husk (I3N2). This treatment also gave maximum gross returns (`110643), net returns (` 58593) and B:C ratio (2.1). The highest Crop water use efficiency (4.62) treatment of 0.8 IW/CPE + 75 RDF+ 5 tons charred rice husk along AM (I1N3) during rabi 2017-18 season.
Key words :
B:C ratio, Crop water use efficiency, Groundnut crop, Growth traits, Irrigation scheduling, Yield attributes.
