Archive for the ‘Steaming Methods’ Category

STEAM CONTINUES TO SUBSTITUTE METHYL-BROMIDE IN SOUTH AFRICA

Sunday, December 2nd, 2012

A large floriculture enterprise near Pretoria, the capital of South Africa, has completed its changeover to hot steam as a soil sanitising medium in greenhouses. Previously they used 40-50 gram hazardous plant protection chemical per square metre – with good results.

However, the prohibition of methyl-bromide by the Montreal Protocol and the requirement to put it into effect in developing countries by 2015 at the latest necessitated to re-think this conventional method.

Mr Marten Barel, a worldwide active specialist in horticulture, found an alternative method in which hot steam is used.

The system including steam boiler was supplied by MSD GmbH (Durbach, Germany) on the basis of the concept developed by Mr Marten Barel.

In the system, a sandwich-type steaming technology is used. The steam is immediately injected into the soil to 20cm depth via hollow pins of a spiked hood made of load-resistant aluminium. Then an average temperature of 80°C is achieved in 6 minutes. This means a complete sanitisation. After the steaming, the soil is free from weeds, weed seeds and soil-borne pests and pathogens across all the 20 cm depth.

Spiked hood with mechanisms for easy lifting-up, lowering and moving

Spiked hood with mechanisms for easy lifting-up, lowering and moving

The steaming process takes place only under glass. The special steaming hood is operated manually, i.e. moved every 6 minutes (due to low labour cost, the company did not want to purchase a semi-automatic solution with hydraulic components). The steamed surface is promptly covered with a sheet to keep the heat in the soil. In this system, the performance is 600 sq. m a day. The energy consumption is about 0.65 l heating oil per square metre. The result is very favourable for the company since especially very sensitive plants, e.g. Lisianthus, positively react on soil steaming.

SOUTH AFRICA DISCOVERS THE EFFECT OF HOT STEAM AS SUBSTITUTION OF METHYL BROMIDE

Tuesday, September 25th, 2012

Timbali Technology Incubator is the first agriculture enterprise in South Africa which uses a steaming boiler (from MSD / Moeschle) to do completely without the harmful soil- chemical methyl bromide (MeBr) and to use hot steam to disinfect the soil and substrates for cultivation of new plants.

Methyl bromide is a smell-free and colour-free gas. It is used as a soil fumigant at agriculture, floriculture, horticulture and olericulture companies and also at the agriculture enterprise Timbali to control weeds and to eliminate soil-borne pests and pathogens.

Timbali Technology Incubator is the first agriculture enterprise in South Africa which uses a steaming boiler (from MSD / Moeschle) to do completely without the soil disinfecting chemical methyl bromide (MeBr) hazardous to health and harmful to the environment. Instead of it, for cultivation of new plants, the company uses hot steam to clean the soil and substrates from weeds, pathogens and pests.

Methyl bromide is a smell- and colour-free gas, which was also previously used as a soil fumigant against weeds, soil-borne pests and pathogens at Timbali, especially for cultivation of flowers and vegetables.

The use of methyl bromide had to expire till January 2005, because it enormously endangers the ozone layer of the stratosphere and is very risky for human health. However, in this respect, Africa still lags behind and was given a grace period for implementation of the MeBr prohibition till 2015. As soon as this period has elapsed, the use of this soil fumigant is also prohibited in Africa according to the Montreal Protocol.

Hood steaming at Timbali, South Africa

Hood steaming at Timbali, South Africa

Being the first company which uses a MSD steam boiler for sanitisation of soil in gardening, Timbali has demonstrated its pioneering spirit and is supported by its partner Eskom.

Mobile high-performance steaming boiler of MSD GmbH (Durbach, Germany) using 200°C superheated steam

Mobile high-performance steaming boiler of MSD GmbH (Durbach, Germany) using 200°C superheated steam

Some representatives of agriculture enterprises visited Timbali at 29th of August 2015 to see the new machine and the introduced steaming technology (mainly hood steaming). Mr Marten Barel, the expert in steaming technology, demonstrated this steaming boiler and explained all system advantages and functions to the visitors.

Now Timbali continues to make this technology public in South Africa and thereby supports the development of small agriculture business.

Video of introduction of the steaming technology at Timbali (click here)

Hot Steam Against Parsites in Bark Substrate

Tuesday, February 21st, 2012

Mediterranean countries are the suppliers of bark substrates which is much sought-after. This nutritious plant material which is the preferred choice for cultivation of beet, balcony and indoor plants often already gets infested with parasites at the tree and hence becomes useless.

Steam boiler S 2000 made by MSD GmbH with an output of 2000kg steam/h

Steam boiler S 2000 made by MSD GmbH with an output of 2000kg steam/h

Recently a well known supplier started to use the power of steam, in order to fully free bark from pest, with considerable suscess.

Operating steaming container on a tipping trailer with a volume of 25m³, connected to a vacuum system.

Operating steaming container on a tipping trailer with a volume of 25m³, connected to a vacuum system.

In special steaming containers 25m³ of bark granulate is steamed via a vacuum system for about half an hour und hence gets completely sterilized. For steam generation a steamboiler is used with an output of 2.000 kg steam /h. The steaming container gets filled and unloaded with a tipper within just a couple of minutes.

Steamed bark substrate

Steamed bark substrate

In the future the system shall be continuously filled with a special conveyor band, in order to work quicker and more efficiently.

More information on request. Please write an email to info@moeschle.de

Steaming on the “Green Week 2010″, Berlin

Wednesday, November 18th, 2009

The horticulture consulting department of LB Berlin plans to introduce steaming systems for hobby gardeners on the Green Week in Berlin in January.

Owners of smaller garden plots shall have the chance to get more information on the advantages of steaming.

What works for big growers also works for small growers

It takes a little more efforts but steaming on a smaller scale is feasible. Before cultivation soil and “self-made” compost are freed from weeds, weed seeds and in particular pest and diseases without chemicals – 100% residue free!

Plants pay back with better growth and more nutrients!
This fact is scientifically proven. Hence Mr. Prof. Dr. Klaus-Dieter Hentschel from  the renowned Humbold-University, Berlin, unreservedly recommends steaming, also for hobby users.

Quote:

“Less toxins = more nature and active, healthy regeneration

This slogan is followed by more and more hobby gardeners that show responsibility towards society as responsible citizens. For small growers joy of gardening already starts when seeding plants.

Healthy seedlings only grow in healthy soil which is not always available in abundance in small garden plots. Also purchased soil or compost not always fulfill all high phytohygienic requirements for seedlings.

A small steam generator in the shape of a push cart which gets introduced at the upper mentioned event,  is a suitable solution. This inexpensive and easy to use device sterilizes about 70 to 80 liters of substrate within 2 hours and  just € 1,- energy cost.

This old but technically newly improved steaming method uses temperatures of just 60 to 80 degrees which are sufficient to successfully sterilize fresh compost and contaminated soil. Steaming not only improves the condition of soil or substrate but also unblocks nutrients and enhances the starting position and the resistance against pest and diseases of seedlings.

I think that this device has been long waited for by hobby gardeners. It supports their ecologically minded and responsible activities and should be available in every garden.“