Horticulture
Horticulture :: Deficiencies and disorders:: Cocoa

Click to view more Images

Potassium

Deficiency Symptoms :

  1. Pale yellow areas in interveinal region near leaf margin, which quickly becomes necrotic

  2. Marginal necrosis progresses more rapidly between veins with a yellow zone on inner surface
Corrective Measure :
  1. Apply fertilizers in two equal split doses during April-May and September-October @ 100:40:140 g NPK/tree/year

  2. In trees yielding more than 50 fruits per year, apply @ 200:80:280 g NPK/tree/year

  3. Under irrigated conditions, apply the fertilizers in four splits during April-May, September-October, December and February-March

  4. Apply 1/3 of recommended dose during the first year of planting, 2/3 during second year and full dose from the third year onwards
 
 

© All Rights Reserved. TNAU 2008-2024.