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Title of Thesis

Sustaining Soil Productivity By Integrated Plant Nutrient Management (ipnm) In Wheat Based Cropping System Under Rainfed Conditions

Author(s)

Mohi Ud Din Dilshad

Institute/University/Department Details
Department of Soil Science & Soil and Water Conservation, Faculty of Crop and Food Sciences / Arid Agriculture University, Rawalpindi
Session
2010
Subject
Soil Science
Number of Pages
271
Keywords (Extracted from title, table of contents and abstract of thesis)
Emphasizes, Nutrient, Inorganic, Organic, Productivity, Soil, Harvest, Cropping, Yield, Wheat, Estimated, Plant, Micronutrients, Rainfed, Grain, Conditions

Abstract
Integrated plant nutrient management emphasizes the combined use of inorganic and organic/biological sources of plant nutrients to enhance efficiency of applied nutrients, reduce environmental hazards and improve crop productivity.A field experiment pertaining to wheat based cropping system in rainfed environment was conducted at the Research Farm of Soil Science & SWC of Pir Mehr Ali Shah Arid Agriculture University, Rawalpindi, Pakistan. It was laid out according to randomized complete block design in Split-Plot arrangement with three replications. The experiment was initiated in winter 2004-05 on wheat followed by maize in summer 2005, and was repeated during the year 2005-06 in the same field with same layout of treatments. Main plot treatments of cropping systems(CS) included:wheat–fallow (CS1) and wheat–maize (CS2), while treatments of integrated plant nutrient management allocated to subplots were: control (without NPK fertilizer, FYM or biofertilizer); half dose of recommended N-P2O5-K2O (60-45-30 kg ha-1) ; full dose of N-P2O5-K2O (120-90-60 kg ha-1); FYM @ 20 t ha -1 , FYM on N requirement basis + make-up dose of P and K fertilizer; NPK + FYM (@ 10 tha-1) ; NPK + Biopower; FYM + Biopower and NPK + FYM + Biopower.Soil analysis for physical and chemical characteristics and plant nutrients (N, P, K, Zn, Fe, Mn, and Cu) at sowing and harvest stage of each crop was performed
Observations on plant growth and yield parameters were recorded at crop maturity.Nutrient concentration in the grain and straw/stalk of the wheat and maize were determined to compute nutrient uptake after the harvest of each crop. Comparison of various treatment means of integrated nutrient management practices for wheatfallow (CS1) and wheat-maize (CS2) cropping systems indicated that there was was significant increase in yield and various yield attributes of both wheat and maize in respective growing seasons. During Rabi seasons of 2004-05 and 2005-06, application of NPK + FYM + Biopower (T9) produced highest grain yield of 3684 kg ha-1 and 3781 kg ha-1 for wheat respectively. During Kharif seasons of 2005 and 2006, application of NPK + FYM + Biopower (T9) produced highest grain yield of 3128 kg ha-1 and 3119 kg ha-1 for maize respectively. The analysis of leaf and grain samples showed significant increase in N, P and K concentration due to integrated nutrient management practices for both wheat and maize during both growing seasons over control. The results revealed that as N, P and K concentration in soil was higher; these were taken up and assimilated in proportion to their concentration. Maximum N uptake of 357 kg ha-1, P uptake of 51 kg ha-1 and K uptake of 215 kg ha-1 was recorded due to application of NPK + FYM + Biopower (T9) for wheat during both growing seasons. Micronutrients concentration recorded significant increase in soil, plant and grain of both wheat and maize.Economic analysis of wheat-maize and wheat-fallow cropping systems revealed that wheat-maize cropping system was more profitable with integrated use of mineral and organic and/or biofertilizer under rainfed conditions. The VCR estimated for IPNM in T9 showed that integrated use of organic and inorganic fertilizer sources had better net profit for wheat yield for the farmer under rainfed condition. Thus, IPNM may prove more viable and sustainable for wheat based cropping system in rainfed Pothowar environment of Punjab province, Pakistan.

Download Full Thesis
1,363 KB
S. No. Chapter Title of the Chapters Page Size (KB)
1 0 CONTENTS

 

4
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2

1

INTRODUCTION

 

3
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3 2 REVIEW OF LITERATURE

2.1 Role Of Mineral Fertilizers In Crop Production
2.2 Farmyard Manure
2.3 Biofertilizers In Ipnm
2.4 Cropping System
2.5 Integrated Plant Nutrient Management

8
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4 3 MATERIALS AND METHODS

3.1 Experimental Site And Its Climate
3.2 Layout Of The Experiment
3.3 Description Ipnm Of Treatments
3.4 Experimental Details Of Wheat Cultivation
3.5 Biometric Parameters Of Wheat
3.6 Experimental Details Of Maize Cultivation
3.7 Biometric Parameters Of Maize
3.8 Soil And Plant Analyses
3.9 Meteorological Data
3.10 N, P And K Uptake By Wheat And Maize
3.11 Economic Analysis
3.12 Statistical Analysis
3.13 Computation Of Correlation Coefficient

25
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5 4 RESULT & DISCUSSION

4.1 Biometric Parameters Of Wheat
4.2 Biometric Parameters Of Maize
4.3 Effect Of Ipnm On Macro Nutrients In Soil After Harvest Of Wheat
4.4 Effect Of Ipnm On Macro Nutrients In Soil After Harvest Of Maize
4.5 Effect Of Ipnm On Macro Nutrient (npk) Concentration In Wheat
4.6 Effect Of (ipnm) On The Macro Nutrient (npk) Concentration In Maize
4.7 Effect Of (ipnm) On Micronutrients In Soil After Wheat Harvest
4.8 Effect Of Ipnm Practices On The Micronutrient Concentration In Wheat
4.9 Effect Of Ipnm Practices On Micronutrient Concentration In Maize
4.10 Macronutrient Uptake By Wheat And Maize
4.11 Economic Analysis

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6 5 SUMMARY


 

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7

6

LITERATURE CITED AND APPENDICES

 

236
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