[Khóa luận tốt nghiệp] Effect of organic extracted nutrient solution on growth, yield of some leaf vegetables on vertical aquaponics system

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CONTENTS
REASSURANCES  ............................................................................................  i
ACKNOWLEGEMENTS  ................................................................................  ii
CONTENTS  ....................................................................................................  iii
LIST OF ACRONYMS  ...................................................................................  vi
LIST OF TABLES  .........................................................................................  vii
LIST OF FIGURES  .........................................................................................  ix
ABSTRACT  ..................................................................................................... x
Chapter I INTRODUCTION............................................................................ 1
1.1.   Introduction  ........................................................................................ 1
1.2.   Objectives and requirements  .............................................................. 2
1.2.1.   Objectives........................................................................................... 2
1.2.2.   Requirements  ..................................................................................... 2
1.3.   Research scope  ................................................................................... 3
1.4.   New contributions, the scientific or practical significance of the 
topic  .................................................................................................... 3
1.4.1.   New contributions of the topic  ........................................................... 3
1.4.2.   The scientific or practical significance of the topic  ........................... 3
Chapter II LITERATURE REVIEW  ............................................................... 4
2.1.   Overview of the aquaponics system  .................................................. 4
2.1.1.   The definition of aquaponics system  ................................................. 4
2.1.2.   Several popular aquaponics systems in the world  ............................. 9
2.2.   Vertical aquaponics system ............................................................. 10
2.2.1.   Vertical farming  ............................................................................... 10
2.2.2.   Vertical aquaponics  .......................................................................... 11
2.3.   Introduction  to  the  water  spinach,  loose  leaf  lettuce  and  leaf 
mustard  ............................................................................................. 13 
iv
2.3.1.   Water spinach  ................................................................................... 13
2.3.2.   Loose Leaf lettuce  ............................................................................ 15
2.3.3.   Leaf mustard  .................................................................................... 17
2.4.   Organic  nutrient  solution  is  extracted  from  animal  and  plant 
materials  ........................................................................................... 18
2.4.1.   Nutritional supplements for aquaponics  .......................................... 18
2.4.2.   Extraction process  ............................................................................ 19
2.4.3.   The effectiveness of organics nutrient solution  ............................... 19
2.5.   Some research articles on aquaponics system  ................................. 20
Chapter III MATERIAL AND METHOD..................................................... 24
3.1.   Object and Material  .......................................................................... 24
3.1.1.   Object  ............................................................................................... 24
3.2.   Place and time  .................................................................................. 25
3.3.   Research contents  ............................................................................. 25
3.4.   Methods  ............................................................................................ 26
3.4.1.   Research methods.  ........................................................................... 26
3.4.2.   Technical application  ....................................................................... 27
3.5.   Characteristics  .................................................................................. 27
3.6.   Data analysis  .................................................................................... 28
Chapter IV RESULTS AND DISCUSSION  ................................................. 29
4.1.   Results of environmental factors during the research period  .......... 29
4.1.1.   The pH  .............................................................................................. 29
4.1.2.   TDS concentrations  .......................................................................... 30
4.2.   Effect  of  organic  extracted  nutrient  solution  concentration  on 
growth  characteristics  and  physiologic  characteristics  of  water 
spinach.  ............................................................................................ 31
4.2.1.   Effect  of  organic  extracted  nutrient  solution  concentration  on 
growth characteristics of water spinach.  .......................................... 31 
v
4.2.2.   Effect  of  organic  extracted  nutrient  solution  concentration  on 
SPAD index, Brix value and leaf area of water spinach. ................ 36
4.2.3.   Effect  of  organic  extracted  nutrient  solution  concentration  on 
the yield of water spinach.  ............................................................... 38
4.3.   Effect  of  organic  extracted  nutrient  solution  concentration  on 
growth  characteristics  and  physiologic  characteristics  of  loose 
leaf lettuce.  ....................................................................................... 39
4.3.1.   Effect  of  organic  extracted  nutrient  solution  concentration  on 
growth characteristics of loose leaf lettuce.  ..................................... 39
4.3.2.   Effect  of  organic  extracted  nutrient  solution  concentration  on 
SPAD index, Brix value and leaf area of loose leaf lettuce..  .......... 43
4.3.3.   Effect  of  organic  extracted  nutrient  solution  concentration  on 
the yield of loose leaf lettuce.  .......................................................... 45
4.4.   Effect  of  organic  extracted  nutrient  solution  concentration  on 
growth  characteristics  and  physiologic  characteristics  of  leaf 
mustard.  ............................................................................................ 46
4.4.1.   Effect  of  organic  extracted  nutrient  solution  concentration  on 
growth characteristics of leaf mustard.  ............................................ 46
4.4.2.   Effect  of  organic  extracted  nutrient  solution  concentration  on 
SPAD index, Brix value and leaf area of leaf mustard.  ................... 49
4.4.3.   Effect  of  organic  extracted  nutrient  solution  concentration  on 
the yield of leaf mustard.  ................................................................. 52
4.5.   Revenues and profits of the aquaponics system  .............................. 53
Chapter V CONCLUSIONS AND SUGGESTIONS  ................................... 56
5.1.   Conclusions ...................................................................................... 56
5.2   Suggestions  ...................................................................................... 57
REFERENCES  ............................................................................................... 58 
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