5.41 CORN - SUBSURFACE DRIP IRRIGATION BEST OPTION

 

SMART FARMING   …  Successful with consultants

LESSON 5.41 CORN - SUBSURFACE DRIP IRRIGATION BEST OPTION


Australia Case Study:  Drip Irrigation Best Option for Corn

The Australian Government’s Scientific Research Agency (CSIRO) conducted a study comparing the yield and net irrigation water productivity of subsurface drip irrigation to lateral move sprinkler irrigation and flood irrigation.

The results clearly show the benefits of using drip irrigation over other irrigation methods:

30% Yield increase Drip vs. Flood Irrigation

 

 
15% Yield increase Drip vs. Sprinkler Irrigation


40% Higher water productivity Drip vs. Flood Irrigation

Financial Benefits of Using Drip Irrigation Over Pivots

Pivot irrigation requires substantially higher pressure to operate (4 – 5 bar for pivots compared to 0.8 – 1.5 bar for drip).

Additionally, pivots require higher volumes of water due to inefficiencies.

The result is significantly higher pumping costs to irrigate using pivot.

Below is a financial analysis based on 1,600 ha corn farm, US $ 0.083 kilowatt hour electricity price, drip 4 shifts applying 9.96 mm / day, pivot at 42.5 lps per pivot.

Pivot: 2.73 (constant) x 72 (m head) x US $0.083 (USD / kWh) x 17280 (ML/ yr) / 0.75

(pump efficiency) x 0.93 (motor efficiency) = US $ 405,222 / year pumping cost

 Drip: 2.73 (constant) x 53 (m head) x US $0.083 (USD / kWh) x 15120 (ML/ yr) / 0.75

(pump efficiency) x 0.93 (motor efficiency) = US $ 261,139 / year pumping cost

 35% Energy savings using drip compared to pivot (USD $ 144.000 / year)

SUBSURFACE DRIP IRRIGATION  in MEXICO STUDY: 

By using subsurface drip irrigation, Agrícola Granos del Valle was able to achieve the following results (over furrow/flood irrigation methods)



20%

Higher Yields

 

50%

Water Savings

 

50%

Power Savings

 

Jacobo Enns, Agrícola Granos del Valle, Mexico  

 

“ We need to switch completely to SUBSURFACE DRIP IRRIGATION urgently … I’m planning to have zero hectares under furrow irrigation in 5 years from now. I want to switch the whole system to Subsurface DRIP IRRIGATION ; we wan’t install any other pivot. DRIP IRRIGTION is very simple and we are saving lots of water. “



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For successful SMART FARMING see 70 lessons about SUBSURFACE DRIP IRRIGATION.
 
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KILIMO BORA Kimefaulu kwa KILIMO-UCHUMI
SOMO LA 5.41 MAHINDI - CHAGUO BORA LA KUMWAGILIA KWA MAFUTA SUBSURFACE


Mfano wa Australia: Umwagiliaji wa Matone Chaguo Bora kwa Mahindi
Wakala wa Utafiti wa Kisayansi wa Serikali ya Australia (CSIRO) ulifanya utafiti kulinganisha tija na tija ya maji ya umwagiliaji wa maji ya umwagiliaji kwa njia ya matone na umwagiliaji wa vinyunyizio vya kusonga mbele na umwagiliaji wa mafuriko.
Matokeo yanaonyesha wazi faida za kutumia umwagiliaji kwa njia ya matone juu ya njia zingine za umwagiliaji:
30% Ongezeko la Mavuno dhidi ya Umwagiliaji wa Mafuriko
15% Ongezeko la Mavuno dhidi ya Umwagiliaji wa Kinyunyizio
40% Tija ya juu ya maji kwa Njia ya Matone dhidi ya Umwagiliaji wa Mafuriko
Manufaa ya Kifedha ya Kutumia Umwagiliaji wa Matone Juu ya Mihimili
Umwagiliaji wa ege unahitaji shinikizo la juu zaidi ili kufanya kazi (pau 4 - 5 kwa pivoti ikilinganishwa na paa 0.8 - 1.5 kwa njia ya matone).
Zaidi ya hayo, pivoti zinahitaji kiasi kikubwa cha maji kwa sababu ya uhaba.
Matokeo yake ni gharama kubwa zaidi za kusukuma maji kumwagilia kwa kutumia pivot.
Ufuatao ni uchanganuzi wa kifedha unaozingatia shamba la mahindi la hekta 1,600, bei ya umeme ya US $ 0.083 kilowati saa, drip zamu 4 ukitumia 9.96 mm / siku, egemeo kwa 42.5 lps kwa pivot.
 Egemeo: 2.73 (mara kwa mara) x 72 (m kichwa) x US $0.083 (USD / kWh) x 17280 (ML/ mwaka) / 0.75
(ufanisi wa pampu) x 0.93 (ufanisi wa injini) = US $ 405,222 / gharama ya kusukuma kwa mwaka
 Mteremko: 2.73 (mara kwa mara) x 53 (m kichwa) x US $0.083 (USD / kWh) x 15120 (ML/ mwaka) / 0.75
(ufanisi wa pampu) x 0.93 (ufanisi wa injini) = US $ 261,139 / gharama ya kusukuma kwa mwaka
35% ya kuokoa nishati kwa kutumia njia ya matone ikilinganishwa na pivot (USD $ 144.000 / mwaka)
UMWAGILIAJI WA MATONE YA SUBSURFACE katika MAFUNZO YA MEXICO:
Kwa kutumia umwagiliaji kwa njia ya matone chini ya ardhi, Agrícola Granos del Valle iliweza kufikia matokeo yafuatayo (mbinu za umwagiliaji juu ya mifereji/mafuriko)
20% Mavuno ya Juu 50% Akiba ya Maji 50% Akiba ya Nguvu
Jacobo Enns, Agricola Granos del Valle, Mexico
"Tunahitaji kubadili kabisa kwa UMWAGILIAJI WA SUBSURFACE DIP IRRIGATION haraka ... Ninapanga kuwa na hekta sifuri chini ya umwagiliaji wa mifereji katika miaka 5 kutoka sasa. Ninataka kubadili mfumo mzima kuwa Umwagiliaji wa Matone ya chini ya uso; hatutaki kusakinisha egemeo lingine lolote. UMWAGILIAJI WA MATOKEO ni rahisi sana na tunaokoa maji mengi. "




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