What is Delta of Crop?

By Sakshi Yadav|Updated : August 5th, 2022

The delta of a crop refers to the total water depth required for a particular crop to reach maturity condition. It is obtained by dividing the total water requirement by the area where the crop is grown. The symbol for DELTA is (Δ).

How Delta of a Crop Defined?

The base period delta of  crop refers to the entire growing period from the time of the first distribution of irrigation water to prepare the soil for planting the crop until the last irrigation before harvest. Δ = B x 24 x 60 x 60D x 104 = 8.64 B/D meters.

Factors Affecting Delta 

There are various factors that affect crop delta. Check out some major factors listed below. 

  • Climatic conditions 
  • Soil type 
  • Water table depth 
  • Harvest type 
  • Watering Method

Summary:

What is Delta of Crop?

Delta for each crop is defined as "total water depth (in cm) required by the crop throughout its base period" or as "total water depth required for the crop to reach maturity". The delta for each crop is calculated by dividing the "total amount of water needed by a crop grown in a particular area" by the "area where it is grown". It is indicated by "△".The sugarcane crop has a maximum delta, i.e Δ = 120 cm.

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