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Nitrogen
Deficiency Symptoms
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Leaves remain small and develop yellowish green colour. Shoot growth is greatly retarded. The root system although light yellow in colour and relatively sparse, appears healthy. Overall yellowish colour on all the leaves
Corrective Measure :
Apply organic manure during May-June on surface layer of soil. Apply 120 g of N in the form of leaf mould or FYM (at least 12 kg) in two split doses in June-July and September-October. application of 40-60 g of nitrogen, 20-30 g of phosphorus and 60-100 g of potashto each vine per year besides organic manures such as vermicompost, oil cakes, poultry manure, wood ash, etc.
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