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RESPONSE OF RABI MAIZE TO IRRIGATION SCHEDULES AND FERTIGATION LEVELS

Article Id: ARCC1395 | Page : 104 - 106
Citation :- RESPONSE OF RABI MAIZE TO IRRIGATION SCHEDULES AND FERTIGATION LEVELS.Agricultural Science Digest.2010.(30):104 - 106
V. Ramulu*, M.D. Reddy and A.M. Rao veeramalla.ramulu@rediffmail.com
Address : College of Agriculture, Acharya N.G.Ranga Agricultural University, Rajendranagar, Hyderabad – 500 030, India

Abstract

A field experiment was conducted during rabi 2007-08 cropping season The trial was laid
out in RBD with 3 replications. The treatment combinations consisted of irrigation schedules
and fertigation levels (8); irrigation scheduled at 1.0 and 0.75 Epan, fertilizer doses (100%
NPK RDF and 75% NPK RDF) and fertilizer forms (water soluble and straight fertilizers). The
grain yield was significantly higher (7.46 t/ha) in fertigation scheduled at 1.0 Epan and 100%
RDF with water soluble fertilizers (MAP, urea, KNO3) over fertigation at 1.0 Epan with 100%
RDF through conventional fertilizers (N&K fertigation and P as basal soil application). The
water productivity (kg/m3) was highest in fertigation at 1.0Epan (1.70 kg/ m3) with 100% RDF
with water soluble fertilizers (MAP, urea, KNO3 ) which was closely followed by fertigation at0.75
Epan (1.50 kg/ m3) coupled with 75% RDF with water soluble fertilizers (MAP, urea and KNO3 )
over conventional method of ridge and furrow irrigation with 100% RDF through conventional
fertilizers (0.74/ m3).

Keywords

Maize Drip Irrigation Fertigation Water Productivity.

References

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