Wooden Worm Composter

 

Timber
Rough sawn 25mm Lawson  or 19mm H3 Pine

Roof
Detachable apex roof 
    Shade cloth , batten strips plus apex pole.
 

Dimensions
Length: 1000, 1500 or 2000mm
Width: 900mm
Height: 900mm

Base
Galvanised mesh floor.

Animal and rodent proof tin strip

This bin is designed to cater for paper hand towels, lunch paper, food waste, shredded cardboard, garden pruning’s, pre composted grass clippings, tea bags ,coffee grounds and even animal manure.

* Note: Avoid glossy printed paper /cardboard and manure from freshly worm
treated animals. Manure one week from treatment is either omitted from the worm bin totally or left to age for one month before introducing to worm bin.

The contents must always remain moist but free draining. Turn the top 30cms with a garden fork once a month adding 2 cups of garden lime per metre and water thoroughly. A fine layer of untreated wood shavings and or washed carpet underlay placed on top of the contents will deter fruit flies and allow worms to work on the surface.  Once the wormbin has a stock density of 10.000 or 2.5 kgs per square metre the worms will consume up to 5 litres or 4 kgs per metre of organic waste each day. The length of time it takes to reach this density depends on the number of worms initially placed into the bin.

When the bin has reached three quarters full, the worm castings are able to be removed (minimum 9 months from commencement). This is done by dismantling the bin layer by layer and reassembling the bin on a new site using a second wire mesh or removing the top layer of material, emptying the vermicompost then replacing the top layer back into the bin which is now acting as the base.  Remember always to keep the top half layer of material as this contains uneaten material and the majority of worms. The removed vermicompost needs to be stored in a cool shaded area. Rotate the feeding sites.

Worm castings can be used dry or diluted i.e. 1 part worm casts to up to 10 parts soil or water. Liquid castings can be diluted further i.e. 1:5-10 litres water. Castings can be sprinkled around the drip zone (preferably in the cooler parts of the day) approx. 2 litres per sq. metre, fork in and water, repeating every 2-4 weeks or mixed in with potting 
mix.Screening the castings through a 10-13mm sieve will remove inorganic waste and/or larger organic material, which can be returned to the bin for further composting.
Corrugated iron may be placed under the wire mesh floor sloping for liquid catchment.

Please click here for operation details etc.
Please click here for photos including construction of these bins etc.
For additional information please E-mail info@wormsRus.co.nz

4Operation Details
This bin is designed to cater for 40+% paper products, ie hand towels, lunch paper, shredded cardboard. Other materials ie  60%  food waste, mulched garden prunings pre composted grass clippings, tea bags, coffee grinds and even animal manure.  
Rotate the feeding sites.
The contents must always remain moist but free draining. Turn the top 30cms with a garden fork once a month adding 4 cups of garden lime per metre and water thoroughly.
  A fine layer of untreated wood shavings and or washed underlay will deter fruit fly and allow worms to work in darkness. 
When the bin has reached at least three quarters full, the worm castings are able to be removed (minimum 9 months from commencement). 
This is done by dismantling the top half of the bin, removing the top layer of material onto a cover, emptying the worm castings then replacing the top layer back into the bin. Break up any lumpy material.
Remember always to keep the top half layer of material as this contains uneaten material and the majority of worms. The removed worm castings needs to be stored in a cool covered area. 
Raised corrugated iron may be placed under the wire mesh floor slopping for liquid catchment.


3Worm Castings
Worm castings can be used around the drip zone approx. 2 - 5 litres per sq. metre, fork in and water, adding a 5+ cm layer of compost or mulch under plant area will achieve excellent results, or mixed in with potting mixes. (1part castings to 4-6 parts soil mix).  
Screening the castings through a 10-13mm sieve will remove inorganic waste and/or larger organic material  which can be returned to the bin for further composting.


2Liquid Casting Recipe
The worm castings are to be removed from worm farm.
Remove any inorganic material i.e plastic etc.
Use approx 50+ litre container (drum) for mixing
Add 15 – 20 litres volume of worm castings to mixing container
(mixing ratio 1 part worm castings to 3 parts water)
Stir well for at least 2-3 minutes
Strain mixture through a soil sieve i.e (5mm diameter)
Stir strained mixture and bottle (2 litre milk bottles are ideal).


2Label Details
Contents name also known as worm tea, liquid castings etc.
Shake contents well
Mix 1 part contents to 5-10 parts water 
2 litres can make up to 20 litres.
Pour around plant root zone. 
1/2 cup ideal around each vege plant
Or  2 litres per metre in the garden (apply fortnightly}.
Store contents away from direct sunlight .
Shelf life 3 months.