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Title of Thesis

Phosphorus Fertilization Management to Improve Phosphorus Use Efficiency And Wheat Yield on Calcareous Soils

Author(s)

Abdur Rehim

Institute/University/Department Details

Institute of Soil And Environmental Sciences/ University of Agriculture Faisalabad

Session
2009

Subject

Soil Science

Number of Pages
203
Keywords (Extracted from title, table of contents and abstract of thesis)
Phosphorus, Fertilization ,Management, Efficiency, Wheat Yield, Calcareous Soils

Abstract
Not Available

Download Full Thesis
975 KB
S. No. Chapter Title of the Chapters Page Size (KB)
1 0 CONTENTS 14
105 KB
2 1 INTRODUCTION 4
28 KB
3 2

REVIEW OF LITERATURE

2.1 Scope of the problem

2.2 Forms of P in soil

2.3 Reactions of P with soil components 

2.4 Adsorption of P

2.5 Precipitation of P

2.6 Sorption of P

2.7 P status of soils of Pakistan     

2.8 P adsorption isotherms

2.9 Use of adsorption isotherms for assessing P requirement of crops

2.10 P fertilization to wheat           

2.11 Effect of method of P application on P availability for crops

2.12 FYM and P availability          

2.13 Effect of irrigation on P availability

2.14 P use efficiency           

28
168 KB
4 3

MATERIALS AND METHODS

3.1 Site selection and preliminary investigations          

3.2 Preparation of saturated soil paste    

3.3 pH of saturated soil paste

3.4 Electrical conductivity of saturated extract

3.5 Soluble calcium + magnesium           

3.6 Soluble sodium 

3.7 Lime        

3.8 Particle size analysis    

3.9 Available P

3.10 Soluble K

3.11 Extractable K

3.12 Organic matter in soil

3.13 Phosphorous adsorption isotherms and application of model  

3.14 Field Experiments      

3.15 Wet digestion of plant samples for P content                                            

3.16 P concentration in grain (%)  

3.17 P use efficiency           

3.18 Total protein                

3.19 Statistical Analysis

6
41 KB
5 4

RESULTS AND DISCUSSION

4.1 Computation of fertilizer P doses for wheat by using Freundlich equation     

4.2 Field Study-I (Effects of rate and method of P application on number of tillers m-2)

4.3 Field Study-II (Comparative effect of FYM on tillers in sandy loam and sandy clay loam soils)

4.4 Field Study–I (Effects of rate and method of P applicationon grains spike-1)                       

4.5 Field Study–II (Grains spike-1 as affected by FYM) 

4.6 Field Study–I (Effects of rate and method of P application on 1000-grain weight)

4.7 Field Study–II (1000-grain weight as affected by FYM)      

4.8 Field Study–I Effects of rate and method of P application on grain yield                                                                            

4.9 Field Study –II (Grain yield as affected by FYM)                

4.10 Field Study–I (Effects of rate and method of P application on P concentration (%) in wheat grain)4.11 Field Study–II (P concentration in grain as affected by FYM)

4.12 Field Study–I (Effects of rate and method of P application on Olsen P status of soils after wheat harvest)                          

4.13 Field Study–II (Olsen P as affected by FYM)                                   

4.14 Field Study–I (Effects of rate and method of P application on P use efficiency of wheat)

4.15 Field Study–II (PUE as affected by FYM)                             

4.16 Field Study–I (Effects of rate and method of P application on protein content in wheat grain)

4.17 Field Study–II (Protein content in wheat grain as affected by FYM)                                      4.18 Field Study –III                                                                          

4.19 Sandy loam soil                                                                         

4.20 Sandy clay loam soil

67
368 KB
6 5 SUMMARY 6
  5.1 LITERATURE CITED 75
237 KB