Harvest Yields

Reduce flooding risks against heavy rain scenarios.

Poor water drainage brings an increase of the flooding risk during periods of excesive rainfalls. This factor endangers the crops that are ready to be collected particularly during heavy rainfalls periods.  A decrease in the harvest yield will depend on the number of days the land has been flooded (in this aspect a good drainage is a crucial factor), crop type and stage of growth when flooding happens. As an example, the following table is shown, presenting an estimated percentual reduction of harvest according to different numbers of flooding days.

Harvest reduction depending on the number of flooding days and crop type.
HARVEST YIELD REDUCTION %

 CROP TYPE

NUMBER OF FLOODING DAYS
3 7

11

15
      Forage                      10                       25                        55                        85
      Pasture                        0                       14                        26                        42
      Sweet Potato                      42                       84                      100                      100
      Sunflower                      10                       28                        50                        72
      Cereal                      14                       36                        60                        90
      Corn                      13                       57                        85                      100
      Sugar Beet                      10                       44                        91                      100

 

Drenotube® contributes to a fast draining of the flooded fields and therefore reduces decisively the risk of suffering losses in the crop.


Groundwater level control.
Establishment of a subsurface drainage allows to control the maximum height of the groundwater during periods of high precipitation. This aspect ensure a part of soil remaining unsaturated of water resulting in a proper leaching and disposal of salts, optimal root aireation during the rainy periods and a high root grow that later allow a better development of the plant.

 

How groundwater level affects the crop's yield.

YIELD OF SOME CROPS DEPENDING ON THE GROUNDWATER LEVEL  (%)

CROP
SOIL
GROUDWATER LEVEL DEPTH (cm)
45 60 75 90 150
  Wheat   Clay 58 77 89 95 100
  Barley   Clay  58 80 89 95 100
  Oats   Clay 49 74  85 95  100
  Alfalfa   Lime-Clay - 100  -  -  -
  Corn   Clay-Lime  67 70 -  100  -
  Corn   Lime-Clay  82 85 100 85 -
  Peas   Clay  50 90  -  100 100
  Beans   Clay  79  84 - 90 100
  Soya   Lime-Clay 78 100 86 - -
  Tomato   Lime  47 60 - 100 -
  Sugar Beet   Clay 71 84 - 92 100

 

The above table shows higher yields when groundwater level is between 60 and 150 cm deep in reference to the surface.
Other benefits are: more accesibility to the area, shorter crop periods, more permeable soil, and a slight increase in the soil temperature, a benefit that implies faster crop growth.

 

    

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