How often should I test my soil?

 

A soil sample should be taken at least once every three years, or when there is a change in crop to be grown. A soil sample should also be taken if problems occur during the growing season.

How long does it take to complete a soil analysis?

 

Generally, a full soil analysis takes 8 working days to complete.

What are the float tray system seedbed inputs?

 

Item

200 cell tray

242 cell tray

Trays

87

72

Seed number

20 000 pellets

20 000 pellets

Black Plastic

39 m2

34 m2

Pine bark

357 liters

432 liters

Water

2 060 liters

1 700 liters

Ammonium Nitrate

600g

500g

No of bricks

400

320

Hydrofert

1 600 g

1 300 g

Floatfert

7 liters

6 liters

Dibble board

What are the advantages of the float system over the conventional system?

 

Advantages of the float system over  the conventional system;

o   Reduced seedbed area, one fifth of space required.

o   Reduced time to pulling seedlings and easier pulling

o   Transplanting can be done during any time of the day

o   Fewer chemicals and in smaller quantities

o   Less water , fertilizers and labour

o   Produces superior, more uniform and stress tolerant seedlings

o   Offers additional flexibility in planting following pulling, i.e., seedlings take longer to wilt compared to conventionally produced bare-rooted seedlings

o   Improved survival and early growth of transplanted seedlings

o   Facilitates easier field management, arising from a more uniform crop

o   Unused pulled seedlings can be inserted back into trays and re-floated without consequence for a later planting.

When is the best time to take soil samples?

 

The best time for sampling is after the rains and when the soil has dried out e.g. April and May in Zimbabwe

Why is it important to mix lime with the soil?

 

Due to the slight solubility of lime in water, its movement in the soil is also not as effectively as other soluble fertilizers. Lime must be in direct contact with soil acids for it to react effectively. This is best accomplished when it is mixed with the soil. Water is also required for the reaction to occur.

What are the conventional seedbed system inputs?

 

MATERIALS

QUANTITY

Seedbed area

120m2

Seed

5 g

EDB or

4.2 L

Metham Sodium

12 L

Copper oxychloride

720 g

Baytan (sore shin control)

0.792 kg

Monocrotophos

216 ml

Acephate

120 g

Bravo

480 ml

Compound S

12 kg

CaNO3 /Nitrate of soda

6 kg

Fumigation tent

 

Clear Plastic cover (75 ┬Ám) 3 m width

4mx3om

Imidacloprid

5ml/100L

Wire hoops

8 gauge 240m

Water