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Showing posts with label water requirement for crops. Show all posts
Showing posts with label water requirement for crops. Show all posts

Feb 12, 2017

How to Calculate Water Requirement for your Crops while using Emitters/ Drippers in Drip Irrigation?


First we need to calculate the total water required. Let’s seen an example:
How to Calculate Water Requirement for your Crops while using Emitters/ Drippers in Drip Irrigation?

Consider we have 1.5 ha area and going to grow a cotton crop in the spacing of 1.5 m x 0.50m.  We are going to use inline dripper having a discharge capacity of 2 LPH (litres per hour so how to calculate the water requirement in drip irrigation?

Taking the given parameters,

We need to calculate how many plants are there in a given area?

Convert ha to sq.meter

1.5 x 10,000 = 15000 Sq.meter

Then,

=15000 / 1.5 x 0.5 (crop spacing)

= 20000 plants can be planted in the field

Now,

We are going to provide 2 litres of water to each plant, so
Total Water Requirement = 20000 x 2 (Total plants x dripper discharge )
=40000 litres or 40 m3/hr

So, we need 40m3 / hr water to irrigate 1.5 ha of cotton crop using emitters  in drip irrigation.

See also
How to Organic Terrace Garden in your House?
Advantages and Disadvantages of Greenhouse Technology
Crop Rotation and its Importance in Agriculture
Soil and its Properties
How to Remove Blockage in Drip Irrigation?

Mar 15, 2015

Flood Irrigation Vs Drip Irrigation



Crops
Flood Irrigation
(Water Demand)
Drip Irrigation
(Water Demand)
Flood Irrigation
(Yield )
Drip Irrigation
(Yield)
Chilly
2000 – 3000
1500 – 2000
12-14
15-18
Onion
1700 – 2500
1100 – 1500
16-20
22-17
Sugarcane
7000 – 9000
3600 – 5200
30–35
60-50
Watermelon
3000 – 3200
1800 – 2000
10–12
16–20
Papaya
7500 – 8000
3000 – 4000
50–60
70–80
Tomato
2800 – 3200
1600 – 2000
10–15
20–25
Mango
5000 – 5500
3500 – 4500
05–07
07-10
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