Effect of foliar application of NPK on sugarcane production and juice quality in Haryana
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Date
2018
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Publisher
CCSHAU
Abstract
An experiment was conducted during 2015-16 at Regional Research Station, Karnal of CCS Haryana
Agricultural University to study the effect of foliar application of NPK on cane yield, yield attributes (cane girth
(cm), cane length (m) and NMC 000 ha-1), juice quality (sucrose % and CCS %), soil analysis and economics of
sugarcane variety CoH119.The experiment included 14 treatments of RDF + alone and different combination of
foliar spray of 2 or 3% urea, DAP and MOP with one treatment of control (RDF). The design of the plot
wasRBDwith plot size 6m x 6m. The highest number of NMC (92010/ha) and cane yield (78.60 t/ha) was found in
RDF + 3% urea + 3% DAP + 3% MOP over control i.e.82942/ha and 67.8 t/ha followed by the treatment RDF +
2% urea + 2% DAP + 2% MOP i.e. 91274/ha and 78.00/ha. Among the various treatment the highest cane length
(1.51m) and cane girth (2.60cm) with applicationof RDF + 3% urea +3% DAP + 3% MOP followed by RDF + 2%
urea + 2% DAP + 2 % MOP i.e. 1.45m and 2.58cm.The foliar application of RDF + 2% DAP+2% MOP
(17.18%,), RDF + 3% Urea + 3% DAP (16.51%) and RDF + 3% DAP +3% MOP (17.49%) gave significantly
higher sucrose content over control (16.14%) and the highest sucrose content was observed in RDF + 2% Urea +
2% DAP + 2% MOP (17.82%) and RDF +3% Urea + 3% DAP + 3%MOP (17.86%). Similarly the application of
RDF + 2% DAP + 2% MOP (11.52%), RDF + 3% urea + 3% DAP (11.13%) and RDF + 3% DAP + 3% MOP
(11.82%) gave significantly higher CCS% and found highest in foliar application of RDF + 2% Urea + 2% DAP +
2% MOP (12.10%) and RDF + 3% Urea + 3% DAP + 3% MOP (12.12%) over control (10.82%).The N
concentration (1.50%) and uptake (583kg/ha) in leaves was found highest with the foliar application of RDF + 3%
urea + 3% MOP over control 0.28% and 431 kg/ha and the P and K concentration and uptake was maximum in
RDF + 3% Urea + 3% DAP + 3% MOP i.e. 0.36% and142kg/ha and 1.44% and570 kg/ha respectively. There was
no significant change in physico-chemical properties with the application of different treatment. The highest net
return were estimated with the application of foliar spray ofRDF + 3% Urea + 3% DAP + 3% MOP
(Rs.133153/ha) and B:C ratio (2.19) followed by RDF + 2% Urea + 2% DAP + 2% MOP (Rs.130453) and B: C
ratio (2.17).