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Soil Fertility Evaluation under Different Land Use System in Tropical Humid Region of Kerala, India

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Title Soil Fertility Evaluation under Different Land Use System in Tropical Humid Region of Kerala, India
Not Available
 
Creator M. Chandrakala, M. Ramesh, K. Sujatha, Rajendra Hegde and S. K. Singh
 
Subject soil fertility, landuse, tropical humid region, Kerala
 
Description Institute project funded by NBSS&LUP
Aims: To know the fertility status of soils of the Elamdesam block.
Place and Duration of Study: Soil samples were brought from Elamdesam block, Idukki district,
Kerala, India in the year 2016 and laboratory characterization was done in National Bureau of Soil
Survey and Land Use Planning, Regional Centre, Hebbal, Bangalore.
Methodology: Based on the different land use type, composite soil samples were collected
randomly from 0 to 20 cm depth. Soils were processed and analyzed for soil reaction, electrical
conductivity, organic carbon, available major (Available NPK), secondary (Ca, Mg and S) and
micronutrients (Fe, Mn, Zn and Cu, B). Mean values for all the nutrients under different land uses
were calculated for comparison. Soil testing rating chart was further used to separate soils for
interpretation under various categories. Results: Results revealed that soils are very strongly acidic in reaction. Organic carbon content is
high in all samples. Phosphorus content varied from low to medium and potassium content was
very low to medium. Available calcium and magnesium were very low and sulphur was medium.
The copper content was adequate and zinc and boron were a deficit. Among land uses, pineapple
land uses recorded highest EC (0.10 dS m-1), available P (82.19 kg ha-1), K (196.32 kg ha-1) and S
(11.49 ppm) whereas paddy soils recorded highest pH (5.08), Ca (264.33 ppm), Fe (98.70 ppm),
Cu (3.95 ppm) and B (0.32 ppm). Similarly, rubber growing soils have the highest Mn (6.92 ppm)
whereas oil palm soils have highest organic carbon (2.80%). Banana land uses the highest EC
(0.10 dS m-1) and Zn (1.26 ppm) and coconut soils have highest Mg (34.96 ppm).
Conclusion: Soil fertility is one of the important factors controlling the crop yields. There is a need
for correcting deficiencies of nutrients for sustained crop production. Thus, evaluating and
assessing nutrient status is a must under various land use systems in order to recommend soil and
crop specific nutrients.
 
Date 2020-06-30T08:05:47Z
2020-06-30T08:05:47Z
2018-10-01
 
Type Research Paper
 
Identifier Not Available
10.9734/IJPSS/2018/40099
2320-7035
http://krishi.icar.gov.in/jspui/handle/123456789/37612
 
Language English
 
Relation ;1049
 
Publisher Sciencedomain international