Vol. 8 (2) : March-April 2017 issue
Green Farming Vol. 8 (2) : 458-461 ; March-April, 2017
Sustainable sweet orange (Citrus sinensis L. Osbeck) cv. Sathgudi production in red loamy soils of Andhra Pradesh through INM
L. MUKUNDA LAKSHMIa1*, K.T.V. RAMANAa2, V. GOPIa3, T. GOURI SANKARa4, G. SARADAa5 and K. GOPALb6
aAICRP on Tropical Fruits (Citrus), Citrus Res. Station, Dr. Y.S.R. Horticultural University, Tirupati - 517 502 (A.P.)
bCollege of Horticulture, Dr. Y.S.R. Horticultural University, Anantharajupet – 516 105 (Andhra Pradesh)
Designation : 1Scientist (Horticulture) *(lmukunda@gmail.com), 6Associate Dean, 2Principal Scientist (H) & Head,
3,4Research Associate, 5Scientist
Subject : Fruit Science and Pomology
Paper No. : P-5705
Total Pages : 4
Received : 19 August 2016
Revised accepted : 02 February 2017
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Citation :
L. MUKUNDA LAKSHMI, K.T.V. RAMANA, V. GOPI, T. GOURI SANKAR, G. SARADA and K. GOPAL. 2017. Sustainable sweet orange (Citrus sinensis L. Osbeck) cv. Sathgudi production in red loamy soils of Andhra Pradesh through INM. Green Farming Vol. 8 (2) : 458-461 ; March-April, 2017
ABSTRACT
Present investigation was carried out to standardize integrated nutrient management for sustainable sweet orange production (Citrus sinensis L Osbeck) cv. Sathgudi budded on Rangpur lime rootstock (Citrus limonia). The orchard experiment was conducted at Citrus Research Station (CRS), AICRP on Fruits (Citrus), Dr. YSR Horticultural University, Tirupati, Andhra Pradesh from 2006-14. Application of 75% RDF (recommended dose of fertilizers) along with AM at 500g/plant + PSB at 100g/tree + Azospirillum at 100g/tree and T. harzianum at 100g/tree produced maximum fruit yield (28t/ha) and maintained soil fertility and leaf nutritional status. Besides yield, integrated use of fertilizers, manures and bio fertilizers increased TSS, fruit juice content and shelf life (20.25 days) as compared to recommended dose of fertilizers alone (1500:350:400g N, P2O5 & K2O /plant/year). Combined application of 75% RDF along with biofertilizers recorded highest cost benefit ratio (2.25) and reduction in dry root rot incidence. Adoption of this practice saved 25% inorganic fertilizers and protect environment from pollution.
Key words :
Bio-fertilizers, Citrus sinensis, INM, RDF, Sathgudi, Sweet orange.
