Saturation and wilting point of soil

 

 

vSaturation of soil :- 

 

                                      A condition in which all easily drained voids ( pores) between soil particles are temporarily or permanently filled with water . If soil remain saturated for too long , most plants will decline or die . A saturated soil decreases a plant’s ability to take up water through its roots. A waterlogged soil decreases water taken up by plants.


·      Effect of soil saturation on trees and plants :-

 

                           Adequate soil drainage or lack of adequate drainage ( also called soil saturation ) is influenced by soil texture ( percent of soil, slit and clay ) and soil structure.

Growth and maintenance of root systems require large quantities of oxygen content and if it drops below 10%, root growth of most plants will be limited . In urban situations, construction activities may have altered the native soil therefore available pore space is greatly reduce in compacted soil. 

                           Oxygen deficiency appears to be the most important environmental factor causing stress, reduced growth, injury and death to trees and other plants in saturated soils .

·      Symptoms of Saturated soil :-

                                  

                             Flood-stressed trees exhibit a wide range of symptoms including leaf size and shoot growth , water sprouts (sprouts along the steam or trunk ) and dieback of portions of the canopy and these symptoms may,

1.     Progress into tree decline and death .

2.     Reoccur for several years and then eventually disappear .

3.     Subside as early as the next year indicating rapid tree recovery .







 vWilting Point of Soil :-

 

                                    The permanent wilting point is the point when there  is no water available to the plant. Permanent wilting point (PWP) or wilting point (WP) is defined as the minimum amount of water in the soil that the plant requires not to wilt. If the soil water content decreases to this or any lower point a plant wilts and can no longer recover its turgidity when placed in a saturated atmosphere for 12 hours. At this limit, if no additional water is supplied to the soil, most of the plants die. The moisture content at the permanent wilting point varies with soil texture .

·      Effect of wilting point on trees and plants :  

                                      Wilting diminishes the plant's ability to transpire and grow. Permanent wilting leads to plant’s death. Symptoms of wilting and blights resemble one another. The plants may recover during the night when evaporation is reduced as the stomata close.Drought conditions, where the soil moisture drops below conditions most favorable for plant’s functioning; the temperature falls to the point where the plant's vascular system cannot function.

                        Farmers need to optimize their water use efficiency .  Challenge like drought, evaporation , salinization, groundwater depletion and lack of access to water reserves are getting serve to  today’s farmers . Farmers are practicing their traditional method for irrigation , but they should know first how much proper water they need to irrigate ? Is there any need for more water for plants ? Before they irrigate, is it desolved ? If they get answers to these questions they can definitely avoid saturation and wilting point of soil .


geoBHUMI can help to fix these problems. With the help of geoBHUMI, farmers can access their field data from anywhere with the help of mobile phone .It’s user friendly, non-contact mode device can show real time active root zone moisture in just one single click. Isn’t amazing!. So do not waste your time and grab your geobhumi device from Konceptogen Agro- and do smart farming.

 


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