Vertical green walls that work outside and indoor

Pots, hanging baskets and containers

Mixing granules with the potting soil prior to planting will yield the most homogenous distribution. In existing pots, apply LS by dibbling: drill 3-4 holes around the stem, about 5cm deep and 3cm away from the stem. Apply LS into the holes, and cover.

In large containers, when transplanting, apply LS only in the upper third of the container.
Open field and garden application

To ensure direct contact with the humid soil, LS should be mixed with the top layer. If drip irrigation is used, incorporate LS under the dripper. When planting new trees, apply LS in the planting holes.

LS can be applied on the topsoil where overhead irrigation is practiced, or during rainy seasons. Increase the application rate by 20%. Apply LS within the area shaded by trees or vegetation.


Liquid fertilizers

When LS is applied in combination with liquid fertilizers, reduce application rates by 50%.

 

Lower Rates

Use lower rates of LS when

·        Applying on salt sensitive plants

·        The water capacity of the growing medium is high (e.g. peat, coir)

·        When capillary irrigation system is being used.

 

Higher Rates

Use higher rates of LS when

·        Applying on plants with high nutritional requirements

·        The water capacity of the growing medium is poor (e.g. coarse bark)

·        The growing medium is leached due to irrigation or frequent rainfall.

Application Rates

The range of application rates is intended as a general guideline based on average conditions. The appropriate application rate depends largely on plant type and size, growing medium, and growing environment

TOP DRESSING RATE

Container size

Container/ Cubic Yard

Low

 (g)

Medium (g)

High

(g)

5” pot

800

3

5

7

6” pot

450

6

9

12

1 gallon

300

9

14

18

2 gallon

140

20

30

40

3 gallon

80

35

50

70

5 gallon

50

55

80

110

7 gallon

35

80

120

155

Large container

Surface Area

 

 

 

10 gallon

1.4 sq. ft.

95

140

200

15 gallon

1.5 sq. ft.

100

150

215

20 gallon

2.3 sq. ft.

155

230

330

25 gallon

2.8 sq. ft.

190

280

400

45 gallon

4.8 sq. ft.

320

480

680

INCORPORATE RATE

Volume or Area of Mix

Low

Medium

High

Per cubic meter

3.5kg

5.2kg

7kg

Per square meter

0.5kg

0.8kg

1.1kg

 

 Temperature

Increase application rate by 20% if the average soil temperature is 30oC. Decrease application rates by 20% if the soil temperature is below 15oC.

·        Applying on plants with high nutritional requirements

·        The water capacity of the growing medium is poor (e.g. coarse bark)

·        The growing medium is leached due to irrigation or frequent rainfall.

 

How to get the best of LS

1.  Worthwhile knowing: Release Controlling Factors


Q: I use different types of potting mixtures. Should I use same rates of  in all types?

A: The type of growing medium you use does not affect the release of nutrients from . Yet, the growing medium may affect nutrient availability after they have been released from the fertilizer granule. Growing media with high Cation Capacity (eg. Coir) may retain the released nutrients, hindering their availability.

 

Q: Is it necessary to maintain the pH of the potting soil at a certain level to ensure that  works well?

A: The pH of the growing medium does not affect the release, but it does affect the availability of the released nutrients, particularly phosphorus and micro nutrients. Maintain the pH level of the growing medium in compliance with the requirements of the plants being grown.


Q: Does microbial activity in the soil affect the release from ?

A: No, but nitrogen concentration in the growing medium may temporarily decline shortly after application as a result of microbial fixation.

 

Q: Would heavy rainfall soon after the application cause faster dissolution of the fertilizer?

A: The rate of release of nutrients from  is slow and controlled without being affected by rainfall or irrigation. Nevertheless, under intensive irrigation or frequent rains the released nutrients are more prone to be leached away from the root, zone, especially in light and sandy soils.

Conclusion

Soil conditions and irrigation do not affect the release, but may affect the fate of the released nutrients. Although most nutrients would eventually be consumed by plants rather than be wasted, consider the factors mentioned above when setting application rates.

 

2.  Storage and Usage


Q: Will  maintain its quality after long term storage?

A: Under appropriate storage conditions,  can be stored over a year or more without losing its properties.  should be stored in a dry place; high temperatures (>45oC) should be avoided; do not store  in stacks of more than 2 pallets.

 

Q: Should I incorporate  in the soil or apply it as topdress?

A: Efficient release of nutrients from the granules to the soil solution requires direct contact between the coating and the humid soil. This is easily achieved by incorporating granules in the soil/growing medium. Raise the application rates if you apply  by top-dressing.

 

Q: I use drip irrigation. Can I use  in top-dressing?

A: Where drip irrigation is used, should be applied near the drippers for optimal performance.

Q: I use liquid fertilizers. Is it possible to apply   in combination with liquids?

A: The combination of  and liquid feeding will yield good results provided application rates are calculated to match plant needs and to avoid excesses. Application of  as a supplement to liquid fertilizers allows versatility of the application rates provided to plants with varying nutritional requirements (different species or age).

 

Q: Is it safe to store a potting mixture that contains ?

A: All potting mixtures contain some humidity. When  is mixed with humid medium it starts to release nutrients within a short while. Fertilizers release when plants are not present causes a waste, and it may result in high salinity of the growing medium. If the storage period of a potting mixture that contains  exceeds 7 days, it is recommended to leach the mix thoroughly before use.

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