5.77 WINE – REGULATED DEFICIT IRRIGATION

 

SMART FARMING     …  Successful with consultants

LESSON 5.77 WINE – REGULATED DEFICIT IRRIGATION



Regulated Deficit Irrigation:

Striking the quality x quantity balance

 

Irrigation scheduling for vineyards uses a different approach (and formula) compared to most crops.

If you are growing table grapes, or many other crops, bigger fruit = greater yield = greater revenue.

Therefore, the goal is to maximize yield. The standard formula to calculate irrigation requirement for maximum yield is: ETC= ET0 x Kc

For wine grapes you don’t want maximum yield. You want to reach the optimum balance of quality and yield for the market you want. This is achieved through Regulated Deficit Irrigation (RDI).

The formula for vineyard irrigation is therefore: RDI = KS x KC x ET0

·         Ks : The estimate of RSI required (changes at different intervals)

·         Kc : Crop coefficient

·         ET0: Evaporation + transpiration

Regulated deficit irrigation: Water stress is implemented intentionally during specific growing stages

Vineyards require a moderate level of water deficit. The goal is to maintain vegetative growth and good sugar accumulation. Many pesticides and herbicides are now forbidden. A subsurface drip irrigation system irrigates direct to the root zone and minimizes moisture on the surface reducing the need for pesticides and herbicides.

 

Advantages:                                                       

·         Most efficient water and fertilizer                                                                             

·         Does not interfere with                              

·         Water not applied on the surface so reduced weeds and plant disease from moisture

 

Disadvantages:

·         Most expensive system to install application

·         Requires careful monitoring and maintenance regimes machinery

·         So reduced weeds and plant disease from moisture

 

 

 Recommended Drip Line:

 SUBSURFACE DRIP IRRIGATION T-TAPE

 or also D5000 AS (Anti-siphon to prevent soil suck back)

  40 – 45 mil wall thickness

– 1.5 lph drippers with 1.0 meter spacing depending on soil type

More Info … Grow successful with consultant.

For successful SMART FARMING see 70 lessons about SUBSURFACE DRIP IRRIGATION.
 
We supply this in West Kenya. Please send us your request when you will double your yield to 3, 4, 5 $ per m² and we plan your farm. 
Save 50% water, energy and use MORGANICS SEAWEED FERTILIZER from us
https://smart-farming-solutions.blogspot.com
 
Find the LEVEL 1: ORGANIC FARMING COURSE, in fb
750 lessons the BASICS of Organic Farming.
https:// www.facebook.com/FAIREC-Atlas-Developement-SARL-654505228040366/

 KILIMO BORA … Imefaulu kwa washauri
SOMO LA 5.77 DIVAI – UMWAGILIAJI ULIO NA UPUNGUFU ULIODHIBITIWA


Umwagiliaji wa Upungufu uliodhibitiwa:
Kuweka usawa wa wingi wa ubora wa x
Ratiba ya umwagiliaji kwa mashamba ya mizabibu hutumia mbinu tofauti (na fomula) ikilinganishwa na mazao mengi.
Ikiwa unapanda zabibu za mezani, au mazao mengine mengi, matunda makubwa = mavuno makubwa = mapato makubwa zaidi.
Kwa hiyo, lengo ni kuongeza mavuno. Fomula ya kawaida ya kukokotoa mahitaji ya umwagiliaji kwa mavuno ya juu zaidi ni: ETC= ET0 x Kc
Kwa zabibu za divai hutaki mavuno mengi. Unataka kufikia usawa bora wa ubora na mavuno kwa soko unalotaka. Hii inafanikiwa kupitia Umwagiliaji wa Upungufu wa Udhibiti (RDI).
Kwa hivyo, muundo wa umwagiliaji wa shamba la mizabibu ni: RDI = KS x KC x ET0
• Ks : Kadirio la RSI linalohitajika (mabadiliko katika vipindi tofauti)
• Kc : Mgawo wa mazao
• ET0: Uvukizi + uvukizi
Umwagiliaji wa upungufu uliodhibitiwa: Mkazo wa maji hutekelezwa kwa makusudi wakati wa hatua maalum za ukuaji
Mashamba ya mizabibu yanahitaji kiwango cha wastani cha upungufu wa maji. Lengo ni kudumisha ukuaji wa mimea na mkusanyiko mzuri wa sukari. Dawa nyingi za kuua wadudu na magugu sasa zimepigwa marufuku. Mfumo wa umwagiliaji wa matone ya chini ya ardhi humwagilia moja kwa moja hadi eneo la mizizi na kupunguza unyevu kwenye uso na hivyo kupunguza hitaji la dawa za kuulia wadudu na magugu.
Manufaa:
• Maji na mbolea yenye ufanisi zaidi
• Haiingilii
• Maji yasiyopakwa juu ya uso hivyo hupunguza magugu na magonjwa ya mimea kutokana na unyevu
Hasara:
• Mfumo wa gharama kubwa zaidi kusakinisha programu
• Inahitaji ufuatiliaji makini na matengenezo ya mifumo ya mashine
• Hivyo kupunguza magugu na magonjwa ya mimea kutokana na unyevu

 Njia ya Kuteremka Inayopendekezwa:
 T-TEPE YA UMWAGILIAJI WA MATONJO YA CHINI
 au pia D5000 AS (Anti-siphon kuzuia udongo kunyonya nyuma)
 40 - 45 mil ukuta unene
– dripu za lph 1.5 zenye nafasi ya mita 1.0 kulingana na aina ya udongo

 

 

 

Drip line buried SUBSURFACE (SDI)








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