I= PHOSPHORUS FERTILIZER REQUIREMENT OF WHEAT (TRITICUM AESTIVUM L.) AND LENTIL (LENS CULINRIS MEDIC) ON THREE ALLUIAL CALCAREOUS SOILS
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Title of Thesis
PHOSPHORUS FERTILIZER REQUIREMENT OF WHEAT (TRITICUM AESTIVUM L.) AND LENTIL (LENS CULINRIS MEDIC) ON THREE ALLUIAL CALCAREOUS SOILS

Author(s)
Amjad Hussain
Institute/University/Department Details
University of Agriculture Faisalabad, Pakistan
Session
2007
Subject
Soil Science
Number of Pages
233
Keywords (Extracted from title, table of contents and abstract of thesis)
phosphorus fertilizer, wheat, triticum aestivum l, lentil, lens culinris medic, alluial calcareous soils, phosphorus application, lens culinaris medic

Abstract
No abstract

Download Full Thesis
9705.52 KB
S. No. Chapter Title of the Chapters Page Size (KB)
1 0 Contents
558.06 KB
2 1 Introduction 1
155.93 KB
3 2 Review Of Literature 4
2054.63 KB
  2.1 Scope Of Problem 4
  2.2 Phosphorus Status Of Pakistan Soils 5
  2.3 Phosphorus Application And Crop Responses 8
  2.4 Phosphorus Affect On Yield Parameters 8
  2.5 Agronomic Efficiencies 12
  2.6 Adsorption Isotherms 13
  2.7 Adsorption Isotherms And Assessment Of Crop €“P Requirement 21
  2.8 Reactions Of Phosphorus In Soils 25
  2.9 Availability Of Phosphorus In Calcareous Soils 32
  2.10 Adsorbed Forms Of Phosphorus 32
  2.11 Precipitation Forms Of Phosphorus 33
  2.12 Adsorbed And / Or Precipitation 34
  2.13 Desorption And Dissolution Of The Adsorbed Phosphate 34
  2.14 Adsorption-Desorptio Hysteresis 37
  2.15 Summary Of Review 37
4 3 Materials And Methods 41
1102.78 KB
  3.1 Site Selection And Preliminary Investigations 41
  3.2 Basic Soil Analysis 41
  3.3 Laboratory Study 45
  3.4 Field Trials For Internal And External P Assessments (Study Iii ) 57
  3.5 Plant Analysis 58
  3.6 Relative Yield (% ) 60
  3.7 Internal P Requirement Of Crops 60
  3.8 External P Requirement Of Crops 60
  3.9 Fertilizer Use Efficiencies 60
  3.10 Statistical Analysis 61
5 4 Results And Discussion 62
3754.05 KB
  4.1 Basic Analysis Of Soils 62
  4.2 Phosphorus Adsorption Capacity Of The Soils 63
  4.3 P Adsorption Experiment By Making Saturated Paste (Study Ii ) 91
  4.4 Field Trails To Assess Internal And External P Requirement (Study Iii ) 95
  4.5 The P Uptake (Kg Ha -1 ) By Wheat 120
  4.6 Phosphorus Availability Status 124
  4.7 Wheat Harvest Index (% ) 128
  4.9 The P Economic Efficiency (Pee) Of Wheat 130
  4.10 Effect Of Fertilizer P On The Growth Parameters Of Wheat 131
  4.11 Lentil (Lens Culinaris Medic) Experiments 133
  4.12 Harvest Index (% ) 135
  4.13 Phosphorus Concentration In Lentil 137
  4.14 Phosphorus Uptake (Kg Ha -1 ) By Lentil 140
  4.15 Internal P Requirement Of Lentil 143
  4.16 Phosphorus Requirement Of Lentil 148
  4.17 The P Use Efficiency ( Pue ) Of Lentil 153
  4.18 The P Economic Efficiency (Pee) Of Lentil 154
  4.19 Conclusions 154
  4.20 Comparison Of P Requirement Of Wheat And Lentil 155
6 5 Summary 159
436 KB
7 6 Furture Research Needs 168b
21.62 KB
8 7 Literature Cited 169
1234.55 KB
9 8 Appendices 200
656.33 KB