Boron (B) deficiency

Boron deficiency is relatively rare especially in irrigated rice systems. It is not very common in rice, but can occur in the soils such as, highly weathered, acid red soils, soils formed from marine sediments and high organic matter status soils.

Boron (B) deficiency affects cell wall biosynthesis and the structure and plasma membrane integrity. It leads to reduction in plant height, death of growing points, and white discoloration and rolling of leaf tips.

How to identify (symptoms)

• Check the leaves for symptoms. Symptoms usually appear first on young leaves. Tips of emerging leaves are white and rolled (similar to Calcium deficiency).
• In severe conditions, growing points can die, but new tillers continue to emerge.
• Plants also have reduced height

 

How to manage < source : TNAU Agritech portal>

1.  Soil applicatio of Boraz at 10 Kg / ha . (broadcast & incorporate it before planting)

2.  Foliar spray of 0.3% Boric acid (3gm/lit), two times at 15 days interval.