Rice - magrica.com

Rice

Rice is one of the most widely consumed staple food in the world especially in Asia. This required a good quality and quantity of rice production. A large proportion of these quality criteria can be positively influenced by judicious use of fertilizers. It is therefore important not only to optimize nitrogen supply but also to adjust the supply of other nutrients.

Why Calcium deficiency occurs

• Less availability of Ca in soil (degraded, acid, sandy soils)

• Over use of Nitrogen (N) or Potassium (K) fertilizer

• Excessive Phosphorus (P) fertilizer application, which may depress the availability of Ca (due to formation of Ca phosphates in alkaline soils).

How to identify Ca deficiency?

• Tips of youngest leaves become white or bleached, rolled, and curled

• Necrotic tissue may develop along the lateral margins of leaves and old leaves eventually turn brown and die

• Stunting and death of growing point during extreme deficiency

• Calcium: Calcium deficiency results shorter roots , and longer root hairs than normal.

Magnesium:

Magnesium ensures the transport of carbohydrates to the harvested bodies. The products of current photosynthesis and carbohydrates already stored temporarily in the shoot are mobilized with the aid of magnesium, transported to kernels, tubers or cobs and used there to form the yield. An adequate magnesium supply leads to a higher proportion of milled rice

Magrica recommendation:

Based on the soil pH , 75-100 kg per acre to be applied during soil preparation time and 25-50 kg /acre two months later.