Abstract
The present study was conducted at Water Management Research Farm, Renala Khurd, Okara, Punjab, Pakistan during 2015
and 2016 to determine the effect of different levels of nitrogen applied through soil and fertigation on sugarcane crop. The
nitrogen levels were 0, 168, 210, 126 and 84 kg ha-1 whereas P and K were constant. There were seven treatments i.e. T1 (0-
112-112 NPK kg ha-1
) through soil application, T2 (168-112-112 NPK kg ha-1
) through soil application and flood irrigation, T3
(168-112-112 NPK kg ha-1
) through soil application and drip irrigation, T4 (125% N of recommended dose of 168 N kg ha-1
)
i.e. 210 kg N ha-1
through fertigation in 12 equal splits , T5 (100% N of recommended dose of 168 kg N ha-1
) i.e. 168 kg N ha1 through fertigation in 12 equal splits, T6 (75% N of recommended dose of 168 kg N ha-1
) i.e. 126 kg N ha-1 through fertigation
in 12 equal splits and T7 (50% N of recommended dose of 168 kg N ha-1
) i.e. 84 kg N ha-1 through fertigation in 12 equal splits.
The experimental results indicated that T5:100% N (168 kg N ha-1
through fertigation) produced taller plants, more millable
canes, cane length, stripped cane weight, stripped cane yield and total sugar yield than all other treatments however, it remained
statistically at par with T6: (75% N of 168 kg recommended applied nitrogen through fertigation). Moreover, the lowest plant
height, tillers, millabe canes, stripped cane yield, stripped cane weight and total sugar yield was recorded in control. In
conclusion, 25% Nwas saved owing to the fertigation with similar cane yield as that of recommended dose of soil applied
nitrogen.
Zahid Iqbal, Muhammad Bilal Chattha, Muhammad Nasir Subhani. (2020) IMPACT OF DIFFERENT LEVELS OF NITROGEN BY SOIL APPLICATION AND FERTIGATION THROUGH DRIP IRRIGATION ON GROWTH, YIELD AND QUALITY OF SUGARCANE, Pakistan Journal of Agricultural Sciences, Volume 57, Issue 3.
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