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PROJECT TOPIC- EFFECT OF BIOCHAR ON SOIL CHEMICAL PROPERTIES AND CARBON STORAGE IN MAIZE FARM IN ABAKALIKI

PROJECT TOPIC- EFFECT OF BIOCHAR ON SOIL CHEMICAL PROPERTIES AND CARBON STORAGE IN MAIZE FARM IN ABAKALIKI

ABSTRACT

This work aimed at effect of biochar on soil chemical properties and carbon storage in maize farm in Abakaliki. Four treatment of biochar T1,T2,T3 and T4 at the level of 0kg, 45kg, 9.0kg and 13.5kg was added to the soil. The experiment was conducted at teaching and research farm of the faculty of Agriculture and Natural Resources Management, Ebonyi State University, Abakaliki. The research work was laid in Randomized complete Block Design (RCBD) and two (2) seeds of maize was planted per hill and later thinned to one (1) stand per hill after germination. Level of significance (FLSD) at two level of probability (1 and 5%) as procedure outlined by steel and Torie (1980) was used. The result showed that pH of the amended plot decreased linearly over control. The order of total nitrogen is T4>T1>T3>T2. The order of increase in the value of calcium T2>T3>T1>T4. The highest organic phosphorous value was recorded in T4. Similarly magnesium recorded the highest value of 4.00cmokg-1 in T1. The order of increase in the value of potassium is T4>T3>T2>T1. The lowest sodium value of 0.24cmolkg-1 was recorded in T1. This was observed that sodium was lowest in T1 than that of T2, T3 and T4 by 10.1%, 120.8% and 122.9% respectively. Similarly the lowest exchangeable acidity value of 0.08cm0lkg-1 was observed in T1 while T2-T4 showed equal value of 0.1cmokg-1 it is gainful that biochar should be used as soil conditioner for crop production since it has ability to modify soil and thereby increases the crop yield by improving soil nutrients.

CHAPTER ONE

INTRODUCTION

Soil remains the fundamental resource for agricultural production and the most important possession and input of farmers who use soil as medium for plant growth. Tropical soil suffers from the loss of organic matter which brought about by rapid oxidation, accelerated by high temperature and heavy precipitation, carbon (iv) oxide and other gases are lost to the atmosphere (Nnoke, 2001).

Farming activities like long period of cropping without the addition of nutrients can impoverish the soil and in Nigeria Today, farmers since many years follow the period which is not adequate to restore the soil fertility and production level (Nnoke, 2001). However, changes in mineral composition of soils and plants usually result in serious alteration in the plant metabolism. Biocher is as valuable as fertilizer, highly porous, variable change of organic materials that has potential to increases soil water holding capacity Cation exchange Capacity (CEC), surface absorption capacity and base saturation when added to soil (Glaser et al., 2002).

Bioahar by definition is the short form for bio-charcoal in plant derived carbon obtained through pysolysis of plant of various origins. It is mostly composed of carbon and comes in the form of small black and highly porous fragments. It may also contain organic molecules. Biochar has been the focus of increasing interest as it claimed to be a way to almost permanently lock atmospheric carbon of unused plant residue that would otherwise limit caron(iv)oxide during natural decomposition which is transported through pyrohysis into stable black carbon and various gas products.

This carbon is then ploughed into the soil where it is permanently stored, while almost enhancing the soil’s agronomic properties. The surface area, porosity, nutrients and change density, all change in relation to temperature of biochar formation (Gundale and Deluca, 2006). Addition of biochar to the soil also have the potential to alter soil microbial populations and to shift functional groups (Pietikainen et al., 200).

The high surface area, porous and often hydrophobic nature of biochar make it an ideal surface for the sorption of hydrophobic of organic compounds (Cornelissen et al., 2004). Biochar acts as a habitat or safe site for soil micro-organism which involve in N.P or S transformations. The resent studies suggest that bacteria and fungi colonize primarily the surface of biochar and man growth inside the small internal pores (Yoshzawam et al., 2005).

Biochar reduces the effect of acidity which hinders proper agricultural production in the tropics. It also improves soil texture, bulk density, permeability, fertility states, resistance to pest attack (Tayacakshin et al., 2007).

PROJECT TOPIC- EFFECT OF BIOCHAR ON SOIL CHEMICAL PROPERTIES AND CARBON STORAGE IN MAIZE FARM IN ABAKALIKI

OBJECTIVES OF THE STUDY

The main objective of this stage is the effect of biochar on soil chemical properties and carbon storage in cultivated maize farm in Abakaliki while the specific objective are

  • To determine the effect of biochar on soil chemical properties

To determine the effect of biochar on carbon storage.

PROJECT TOPIC- EFFECT OF BIOCHAR ON SOIL CHEMICAL PROPERTIES AND CARBON STORAGE IN MAIZE FARM IN ABAKALIKI

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