Is the poor growth of maize in the Maputaland area of South Africa caused by mineral deficiencies?

 

Abstract


Introduction:


Plan for the experiment:
Equipment:
The nutrient solutions:
Measurement:
Variables and their control
Hypotheses:


Method:


Results:
Table of results
Graphs
Growth in the different solutions: Percentage germination:
Deformities:


Possible reasons:
Reasons for stunted growth and deformities:
Growth rates:

What caused the different germination rates?
What about the plants native to the Maputaland area?
Conclusions


Impact on the people of the Maputaland area:


Limitations:


Possible future experimentation:


Bibliography


Further Reading


Raw data


Results

Results are averages (in cm) found from the raw data

DATE

Complete

no Sulphur

no Magnesium

no Nitrate

Maputaland

Total mean

sd

cf

sd

cf

sd

cf

sd

cf

sd

cf

27-Nov

3.2381

1.7525

0.5687

2.449

1.637

0.6024

2.2636

1.4461

0.5023

2.5102

1.6346

0.6015

1.6481

1.1881

0.4165

2.4218

28-Nov

4.2059

2.2646

0.7074

3.2451

2.043

0.7369

3.1161

1.8513

0.6372

3.1032

2.1593

0.7007

2.3707

1.4855

0.5024

3.2082

29-Nov

30-Nov

6.4254

2.7869

0.877

5.2593

2.8163

0.9872

4.9397

2.4478

0.8279

5.0806

3.0904

1.011

4.2667

2.1163

0.7037

5.1943

1-Dec

7.0507

2.6025

0.807

5.3879

2.908

0.9836

5.3534

2.5684

0.8687

5.4141

3.2885

1.0588

4.7541

2.3693

0.7814

5.5921

2-Dec

7.8358

2.464

0.7754

5.9035

3.0886

1.0538

5.8947

2.6938

0.9191

6.1269

3.5711

1.1238

4.7903

2.5568

0.8364

6.1103

3-Dec

8.0725

2.6641

0.8261

6.1102

3.2959

1.1052

6.0763

2.8524

0.9565

6.3456

3.5474

1.1081

5.2177

2.6077

0.8531

6.3644

4-Dec

8.3284

2.5666

0.8077

6.2966

3.4593

1.16

6.3947

2.6971

0.9202

6.4538

3.5616

1.1379

5.1953

2.6616

0.857

6.5338

5-Dec

8.2826

2.7325

0.8473

6.2373

3.5274

1.1829

6.2759

2.9856

1.0098

6.5159

3.8121

1.2371

5.3413

2.647

0.859

6.5306

6-Dec

7-Dec

8.2279

3.1284

0.9772

6.3966

3.732

1.2622

6.537

3.0789

1.0792

6.5161

3.7917

1.2404

5.1905

2.8147

0.9135

6.5736

s.d. = standard deviation

c.f. = 95% confidence interval

©1999 Benjamin Fredlund
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