The schedule has been worked based on experiment carried out in
heavy and calcareous soils using saline irrigation water (EC
ranging from 1.7-1.8 dS/m)
This experiment was conducted in a row to row and vine to vine spacing of 10¢×6¢. Fertigation schedule can be suitably applied up to a row to row and vine to vine spacing of 8¢×5¢.
The nutrient quantity given are guidelines for distributing the
NPK doses at different
growth stages and may change based on the site
and climatic conditions.
One kg P=2.29 kg P2O5 and one kg K=1.21 kg
Under normal climatic conditions generally, it takes 10-12 days for sprouting.
The nutrient applications should necessarily take into account soil, petiole and water testing report.
Contribution of nutrients from other sources like composts, FYM,
green manuring irrigation water, etc. should also be taken into
consideration for adjusting the nutrient dose. All the manures
and fertilizers, irrigation water and other inputs should be
tested for presence of heavy metals (As, Cd, Co, Cr, Cu, Hg, Mn,
Ni, Pb, Sn, and Tl) before use.