Archive for the ‘Soil Sterilization’ Category

STEAMING TESTS FOR STRAWBERRY CULTIVATION IN THE KARLSRUHE DISTRICT SHOW IMPRESSIVE RESULTS

Thursday, June 2nd, 2016

Steaming tests for strawberry cultivation were held on 1.06.2016 and included a tour of inspection, offering consultancy from Karlsruhe district experts on horticulture, fruit and wine cultivation and providing results of tests carried out using soil steaming, outdoors and in tunnels. The event took place at the Böser strawberry and asparagus farm in Forst, Baden.

Steaming tests for strawberries near Karlsruhe

Steaming tests for strawberries near Karlsruhe

Steaming was carried out in summer 2015 by Mr. Steffen Koch from the company Mobildampf. The expert consultant from the Karlsruhe district, Mr. Arno Fried, carried out a steaming demonstration resulting in improvements of up to 500%.

Diagram showing results of steam treatment in strawberry cultivation

Diagram showing results of steam treatment in strawberry cultivation

Steam treatment is the ideal sanitation method for contaminated soils or grounds with a relatively high level of soil fatigue. You can obtain more details directly from Mr. Arno Fried: Contact

CALIFORNIAN STRAWBERRY CULTIVATION FIRM INVESTS IN STEAMING EQUIPMENT

Tuesday, May 31st, 2016

Replacing methyl bromide is one of the most urgent challenges facing California too, in particular for strawberry growers. MSD GmbH’s international representative in the United States, Dutch firm Marten Barel Consultancy BV, started operations at the end of May with a large-scale facility in California using a MSD Steam Boiler, model S 2000.

24m² - spike steam hood behind towing vehicle with a hydraulic undercarriage on rollers

24m² - spike steam hood behind towing vehicle with a hydraulic undercarriage on rollers

The energy-saving sandwich-type steam procedure is used for strawberry cultivation. Two 24m² sized spike steam hoods on a hydraulic undercarriage on rollers are alternately moved on one tracked vehicle respectively. 17 cm long spikes mounted under the hood heat the ground to over 80° C to a depth of 25 cm. As the soil is sandy, steaming time is around 7 minutes.

MSD steam boiler S 2000 incl. heating oil supply, mounted on a special trailer

MSD steam boiler S 2000 incl. heating oil supply, mounted on a special trailer

The steam system put into operation with two spike hoods and the MSD Steam Boiler S 2000   currently has a daily capacity for total sterilisation of approx. 2,500 m² ground for strawberry cultivation, freeing the soil of weeds, diseases and soil fatigue. In a second phase beginning in 2017, the 1,500 hectare-sized horticultural business in California plans to invest in another steaming system capable of steaming more than 1 ha cultivated area per day.

ONE OF CHINA’S BIGGEST TOBACCO PRODUCERS RELIES ON PROVEN GERMAN STEAM TECHNOLOGY

Thursday, May 19th, 2016

Persistent soil fatigue has forced the Chinese tobacco growing company in Yunnan province to explore new possibilities. Chemicals cannot be used for cultivation soil treatment since the seedlings are extremely sensitive.

The Chinese representative of the steam specialist MSD GmbH, Beijing Zhongjinguoyi Sciences Development Co. Ltd., has decided to acquire soil sterilisation methods using hot steam that are new to China. In mid-May 2016, steaming experts from Germany participated in the start-up of the first steaming equipment for sterilising substrates in Yunnan.

Start-up of a steam boiler model MS 100 for substrate steaming

Start-up of a steam boiler model MS 100 for substrate steaming

As soon as steaming has established itself in operational procedures, further steaming equipment from Germany will be used, with the capacity to prepare hundreds of cubic metres of soil per day with hot steam, also over a cultivation area, for tobacco and ginseng farming.

NEW SOIL STEAMING FACILITY IN VIETNAM

Tuesday, April 19th, 2016

A mobile steam facility for sterilising substrate and soil was launched in the first quarter of 2016 at one of the largest national seed producers in Vietnam.  The leading company is implementing the extremely cost-effective sandwich-type steam procedure for the first time using a hood with pins to sanitise topsoil up to a depth of 25cm under covered greenhouses, and thereby fully liberates them from weeds and soil-borne diseases.

Very effective sandwich steaming with two steaming hoods with spikes

Very effective sandwich steaming with two steaming hoods with spikes

Here, two manually portable steaming hoods with a surface cover of 8m² and 20cm deep special hollow pins are applied in each case. Both hoods are used in parallel and alternately moved. A steam chamber with a steam output of 400kg per hour is therefore used.  The system’s ground coverage amounts to up to 400m² per working day, in which the soil is heated to more than 80°C within seven minutes at a depth of 25cm.

Steaming of coco peat in special steaming bunkers with vacuum system

Steaming of coco peat in special steaming bunkers with vacuum system

In addition to steaming surfaces with the sandwich-type steaming method using a hood with pins, the company also sanitises large quantities of coco peat substrate. Therefore, special steam shelters were constructed with an extraction system and put into operation. Extraction is made possible using a special drainage system in the base of the individual immovable boxes. A mobile steam boiler, Type “S 350″, from the company MSD with a steam output of 400kg/h is also used for this purpose. The system works with the greatest efficiency and has the ability to fully clean up to 16m³ of coco peat at a target temperature of something above 80°C in one hour. The hot oil requirement rests on the basis of on-site readings with an average ~19L/h.

SANDWICH STEAMING FOR 0.30 €/SQ.M: SOIL STERILIZING AT EVEN MORE FAVOURABLE PRICE THAN CHEMICAL TREATMENT!

Thursday, December 31st, 2015

The MSD sandwich-type steaming hood that is now put into operation in Alicante is the first MSD steaming hood of this type on the Iberian Peninsula. Due to the innovative spiked hood technology allowing both surface and deep steaming at the same time, it is now possible to increase the steam quantity that penetrates into the soil even by 50%.

As the result, the energy cost and steaming time are significantly reduced once more.

At favourable conditions (dry and not too loamy soil, etc.), the new spiked hoods from MSD allow the temperature to be increased to about 85-90°C at even 20 cm depth in 10 minutes. This requires merely about 8.5kg steam/sq. m. After the treatment, the soil is sanitised without chemicals and residues.

The spiked hood is simply moved by a mini-excavator.

The spiked hood is simply moved by a mini-excavator.

Thus due to the heating oil prices, which currently remain low, 1 sq. m of soil can be treated with steam and completely liberated from pathogens, exhausting and weeds at 20 cm depth for only 30 cents heating cost (or 3,000 euros/hectare).

In Spain, the spiked hood can be easily moved by a mini excavator at low labour expenses. All in all, about 1,800 sq. m are monthly treated with this efficient steaming system. In this way, the company can also sanitise up to 4.000 sq. m monthly using a second spiked hood with the available MSD high-performance boiler of type S 750.

ENGLISH SALAD FARM COUNTS ON A NEW SEMI-AUTOMATIC STEAMING SYSTEM

Tuesday, September 22nd, 2015

One of well-known and modern baby-leaf farms in West England now uses hot steam for sanitisation of 17ha cultivation soil in greenhouses.

This has become possible due to an invention by MSD GmbH in Durbach (Germany) concerning its special steaming hoods.

Three-membered special steaming hood with foldable outer components and hydraulically-driven auxiliary gear.

Three-membered special steaming hood with foldable outer components and hydraulically-driven auxiliary gear.

The special steaming hood is designed in such a way that it can also be used in narrow confines, e.g. greenhouses, without any problems. It consists of three members. The outer members can be folded out and back hydraulically. Thanks to such a design paired with a smart semi-automatic auxiliary gear, only one operator is needed to work with the entire system (in particular, to move the hood).  The system can daily sanitize with hot steam up to 1,000 sq. m surface at maximum 15 cm depth at higher than 80°C. Currently, the heat oil consumption is about 0.65 l/sq. m

High-performance steaming boiler with steam supplying system, from MSD GmbH

High-performance steaming boiler with steam supplying system, from MSD GmbH

The steam is generated by a high-performance steam boiler from MSD GmbH, Durbach. The steam is mostly supplied to the steaming hood by a pipe system, except the last 15 m. As the result, the mobile steam boiler needs to be moved only one time per each greenhouse aisle. This additionally optimises the efficiency of the steaming method.

FREIBURG REGIONAL COUNCIL ONCE AGAIN USES STEAM AGAINST JAPANESE KNOT WEED

Sunday, July 19th, 2015

Japanese knot weed remains a major topic of control in Freiburg regional council. The extremely positive experiences using various steaming experiments against the pest introduced has additionally persuaded public providers to now gradually speed up the decontamination of large quantities of cuttings using superheated steam.

Pile steaming against Japanese Knot Weed with MSD steam boiler mounted on a trailor (right)

Pile steaming against Japanese Knot Weed with MSD steam boiler mounted on a trailor (right)

Soil steamin specialist, Steffen Koch, was commissioned with his company, mobildampf, in July 2015 to treat a 500m³ substrate on the River Elz using pure steam and therefore safely killing all germinable parts of plants, most notably the rhizome of Japanese knot weed to ensure that the soil can be moved and deposited.

Special steam injection lances for stack steaming

Special steam injection lances for stack steaming

With a large scale plant, company MSD GmbH was able to treat the entire volume of soil using superheated steam with a steam output of 2,000kg/h within four days, which will be completely free from invasive neophytes. For this reason, approximately 80m³ of substrate was deposited and covered. Using specialised hollow steam injection lances, which can even be driven several metres into the mound of earth awaiting steam treatment, the steam was introduced. In the process, steaming time lasted a maximum of 2.5 hours. Heating oil consumption is an average of ~4 litres per m³.

SANITIZING SUBSTRATES DIRECTLY IN FLOWER POTS. THIS NEW STEAMING METHOD IS APPLYED IDIALY BY A POINSETTIA GROWER IN CENTRAL AMERICA

Friday, January 23rd, 2015

One of the largest American poinsettia growers having many production locations in Central America uses a new steaming system for 50ha area.

The company already used steaming for sanitisation of substrates before. However, labour expenses were high: at first, the soil had to be spilled out from each pot and then collected and treated with steam under a sheet. After the steaming, the pots were re-filled with the soil and re-planted.

Special spiked steaming hood in use

Special spiked steaming hood in use

Mr Marten Barel, a specialist in steaming technology, has developed a quite new method. Using this system, you need not to empty the pots and then re-fill them again.

In this case, 45 flower pots are covered with a special steaming hood. The steaming hood is equipped with special steam injectors, which penetrate into each flower pot filled with cultivation soil.  This method ensures that the substrate is heated up to 95°C within 5-6 minutes steaming time and, thereby, completely sanitised.

Steam boiler from MSD GmbH (Durbach, Germany) in front of the plant rows; steaming technology expert and adviser Mr Marten Barel (left)

Steam boiler from MSD GmbH (Durbach, Germany) in front of the plant rows; steaming technology expert and adviser Mr Marten Barel (left)

Thanks to this new technology, the large horticulture company has doubled the steaming capacity. The energy consumption was reduced by 70% to mere 16 l/h, in particular, due to the use of a state-of-the-art high-performance steaming boiler. Using two steaming hoods in turn, the company can treat 450 flower pots with steam per hour.

FULLY AUTOMATIC “Steaming robot” DEVICE PROVES ITSELF IN THE PRACTICE

Monday, June 30th, 2014

Since 2010 the Stegemeier horticulture company near Bielefeld (Germany) has used the fully automatic steaming robot from MSD GmbH (Durbach, Germany). The company has efficiently used the time to optimise the new steaming system awarded with the prize of the German Federal Ministry of Agriculture.

The effort was worth it. In the meantime, the steaming robot has become an integral component of the Stegemeier operation.  The device automatically treats 15 ha outdoor area for rocket (arugula) cultivation with hot steam yearly.

Due to dense sowing on the soil previously treated by the fully automatic device with steam, the company cultivates rocket of a high-quality and completely free of weeds. The labour cost is almost negligible. Since the steaming robot device runs automatically and only needs to be turned by a trained operator at the end of each bed row, the cost of its operation are merely about 3,000 Euros per hectare for heating oil required for steam generation.

Fully automatic steaming robot from MSD GmbH in use outdoors

Fully automatic steaming robot from MSD GmbH in use outdoors

The steaming is performed by three steaming hoods placed under the fully-automatic device. They are automatically lowered, lifted up and moved.  In this way, an optimal result is already achieved at 5 cm steaming depth in about 6 minutes steaming time. In this method, the robot can treat about 0.5 ha in 12 hours.

Video of the steaming robot’s first use outdoors in the beginning of 2010 (click here)

For further information, please contact the manufacturer MSD GmbH in Durbach.

VOLCANIC PUMICE SUBSTRATE RECYCLED WITH HOT STEAM IN EAST AFRICA

Saturday, May 4th, 2013

In Kenya, the substrate based on volcanic pumice rock is now being recycled by means of hot steam treatment and made reusable.

After the volcanic soil in Kenya had got under protection, it became necessary to recycle and to re-use the available volumes of pumice substrate in many gardening companies, especially in floriculture. Steam proved to be a suitable mean for this task. For this purpose, large special containers were equipped with a sophisticated drainage system and the product in these containers was cleaned with hot steam.

Special steaming containers being filled at Barel BV (NL, Veldhoven)

Special steaming containers being filled at Barel BV (NL, Veldhoven)

With this method, 16 cbm pumice rock are sanitised in 1 hour and thus can be used anew.  The steaming completely liberates the substrate from pathogens, pests, seeds and/or sprouting weeds.

Special steam boiler from MSD GmbH (Durbach, Germany) generates 200°C superheated steam

Special steam boiler from MSD GmbH (Durbach, Germany) generates 200°C superheated steam

The volcanic substrate has proven to be an ideal steamed product. The heating oil consumption is only 16-18 l per hour. Due to the ideal properties of pumice, you need only 12-15 kg steam per 1 cbm to achieve temperatures higher than 80°C and, thereby, an optimal sanitising result.