I= EVALUATION OF SORPTION ISOTHERMS BASED SOIL SOLUTION POTASSIUM CONCENTRATION LEVELS FOR MAXIMIZING CROP YIELDS
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Title of Thesis
EVALUATION OF SORPTION ISOTHERMS BASED SOIL SOLUTION POTASSIUM CONCENTRATION LEVELS FOR MAXIMIZING CROP YIELDS

Author(s)
Abdul Hannan
Institute/University/Department Details
Institute of Soil and Environmental Sciences/ University of Agriculture Faisalabad
Session
2006
Subject
Soil Science
Number of Pages
126
Keywords (Extracted from title, table of contents and abstract of thesis)
sorption isotherms, potassium concentration levels, crop yields, fertilizer, soil adsorptive, nutrient bioavailability, potato, forages

Abstract
No abstract

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4520.19 KB
S. No. Chapter Title of the Chapters Page Size (KB)
1 0 Contents
471.46 KB
2 1 Introduction 1
191.6 KB
3 2 Review Of Literature 7
1103.3 KB
  2.1 Different Forms Of K In Soil 7
  2.2 Solution K 8
  2.3 Exchangeable Or Fixed K 9
  2.4 Non-Exchangeable Or Fixed K 9
  2.5 Structural K 11
  2.6 Responses Of Crop To K Fertilizer 11
  2.7 Methods Of K Assessment For Fertilizer Recommendations 15
  2.8 Potassium Sorption Isotherms 15
  2.9 Soil Adsorptive Properties Versus Nutrient Bioavailability 16
  2.10 Factor Affecting Potassium Adsorption In Soil 17
  2.11 Potato And Potassium Application 23
  2.12 Responses Of Forages To Potassium Application 29
  2.13 K Depletion Buildup In Soil 34
  2.14 Yield Response 37
4 3 Materials And Methods 39
270.69 KB
  3.1 Physical And Chemical Analysis Of The Soil 39
  3.2 Laboratory Adsorption Studies 41
  3.3 Field Studies 42
  3.4 Determination Of Potato Growth And Quality Parameters 44
  3.5 Fodder Quality Parameters 46
  3.6 Statistical Analysis 48
5 4 Results And Discussion 50
1759.93 KB
  4.1 Basic Soil Characteristics 50
  4.2 Freundlich Adsorption Is Of The Soil 50
  4.3 First Crop In Buildup Studies-Potato 53
  4.4 External And Internal K Requirements Of Potato Crop Optimum K Rate 65
  4.5 Maize Fodder ( Second Crop In Buildup Studies) 66
  4.6 Maize Fodder (Third Crop In Buildup Studies ) 71
  4.7 Potato( Fourth Crop In Buildup Studies) 74
  4.8 Depletion Studies 82
  4.9 K Uptake By Crop 90
  4.10 K Uptake And Soil K Status Under Depletion Studies 92
6 5 Summary 95
110.55 KB
7 6 References 99
781.1 KB