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Concept on soil fertility declines in Nepal |
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by Shambu Kattel | 24-08-2020 21:25
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The plant depend on soil not only for anchorage but also to obtain necessary element for their structural build up and their physiological process. All the 16 element that help in identity as essential for plant growth. Plant absorb carbon from air through the stomata , hydrogen and oxygen are obtained from water through plant roots, other remaining elements are obtained from the soil.This is why plant depends on soil for its nutrition.
All the nutrient are present in soil. However, their presence in soil, doesn't mean such soil is fertile. Some nutrient are absorbed in cationic , anionic and some are in the reduced form.There must be sufficient amount of nutrient enough to meet the minimum requirement of crop and also must be in a available form. Thus, soil fertility can be also defined as the ability of soil to supply plant nutrient in adequate quantity and in available form. The main cause of soil fertility declines can be summarized by the following points.. 1. Acidification of soil: Mostly middle mountain and eastern Nepal soil are acidic due to parent material like sandstone, slitstone and use of acidyfying fertilizer. 2. Soil erosion: Mostly high hill upland and marginal land has high rate of soil erosion. 3. Siltation problem: Seti and Narayani irrigation sector command area are more prone to siltation. 4. Non agricultural degradation: Degradation of Forest and Marginal land. 5. low quality fertilizer 6. low fertilizer use 7. Environmental Portion 8. Specific problems to red color soil |
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Previous : soil horizon
6 Comments
Greetings shambu
I hope you are doing well
Thank you so much for this report
Keep writing
Green Cheers
Regards
Asmita Gaire
Posted 23-09-2020 14:42
Greetings
Thanks for sharing a report about concept of soil fertility decline in nepal.
Keep writing!!!
Regards
Dolma
Posted 29-08-2020 15:02
Thanks for your report!!
Posted 25-08-2020 01:28
Hello Shambu,
I hope you are fine and doing well,
I really enjoyed reading your report,
And yes! Soil is not only physical but also biological too
Thank you for sharing,
Regards,
Paras Kunwar
Posted 24-08-2020 23:44
thank you brother keep enjoying this forum is for us
Posted 24-08-2020 21:34
Concept regarding the fertility declination in context of nepal
such a nice info loved it
Posted 24-08-2020 21:30