P deficiency reduces fertility and fruit setting considerously, resulting in poor yield.
P deficiency results in reduced growth and dark green leaves, often with some bronzing to purple lesions on the leaf blades. Discoloration starts at the margins and spreads over the interveinal areas. The leaves become hard and stiff. Dormant buds contain only small flower primordia what reduces the performance of the vines.
Phosphorus deficiency Phosphorus deficiency occurs rather seldom in the fields.
Grapevines: For best results, apply YaraMila Complex two times : First application : 50 kg/acre (soil applied) at the time of pruning Second application : 25 kg per acre (soil applied), 41-80 days after pruning.Read more about YaraMila COMPLEX
Grapevines: 40 kg/acre (1.15 kg/day/acre) at 6-40 days after pruningRead more about YaraTera KRISTA MAP
Grapevines: 20 kg/acre (0.5 kg/day/acre) at 40-80 days after pruningRead more about YaraTera KRISTA MKP
Grapevines: 15 kg/acre (0.4 kg/day/acre) at 6-40 days after pruningRead more about YaraTera DELTASPRAY 19-19-19