Climate

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LED and HPS luminaires affect leaf and air temperature differently, which can have a profound effect on your crop

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Submitted by Elsewhere on 2021-Jan-20 Wed 13:30
2021-Jan-20 Wed 13:30
2774

LED and HPS luminaires affect leaf and air temperature differently, which can have a profound effect on your crop. Learn more on the differences between these two technologies and how it might affect the outcome of your plants at bit.ly/2Jrq58T pic.twitter.com/jOU093X5Gr

Posted by P.L. Light Systems (PLlight) on Wednesday, January 20th, 2021 1:13pm

New solution on greenhouse climate control showcased

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Submitted by Elsewhere on 2021-Jan-13 Wed 13:19
2021-Jan-13 Wed 13:19
2706

Nivola presents a new solution for climate control under 100% closed screens in existing and new greenhouses. The need for light shielding by growers is continuously increasing. Last Monday, Hortidaily posted: ‘’Passed on December 8th, 2020 by the municipality of Leamington, the “Greenhouse Light…

Common mistake: "The aspects of microclimates are underestimated”

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Submitted by Elsewhere on 2020-Dec-22 Tue 10:00
2020-Dec-22 Tue 10:00
2592

In greenhouse horticulture air is often brought in from below. In utilities, this is the other way around. There, the air is always brought in from above. It ensures effective air movement and a good indoor climate for people or business processes. Growers also want an optimal climate, but for the plant.…

More than 4,000 hectares of bananas in Tabasco were lost to the floods

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Submitted by Elsewhere on 2020-Dec-18 Fri 11:15
2020-Dec-18 Fri 11:15
2561

The floods that have ravaged Tabasco this year have strongly impacted the state's banana production. The president of the National Council of the Banana Product System, Adrian Prats Leal, stated that the floods had affected more than 4,500 hectares, 4,000 hectares of which had total losses, which led to…

Can Organic Farming Solve the Climate Crisis?

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Submitted by Elsewhere on 2020-Dec-15 Tue 05:00
2020-Dec-15 Tue 05:00
2501

As the climate crisis intensifies, a growing number of consumers have begun to see healthy soils as a potential solution. As a result, soil-building techniques like cover crops and diverse crop rotations are increasingly in the limelight. But for many dyed-in-the-wool organic farmers, they’re old hat.

“These are practices that have been part of organic certification for decades now,” said Laura Batcha, CEO of the Organic Trade Association (OTA), during a September media briefing to kick off a campaign positioning organic farming as a climate solution.

📄 Spectrum selective nanofluid on greenhouse rooftop reduces cooling load by 26%

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Submitted by Elsewhere on 2020-Dec-08 Tue 03:43
2020-Dec-08 Tue 03:43
2394

In hot climatic conditions, the temperature inside a greenhouse is much higher than the ambient temperature and requires significant cooling to maintain the temperature in the optimal range. A newly published study done by researches of the Hamad bin Khalifa University proposes a novel concept for a self-…

Addressing common climate issues in greenhouses

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Submitted by Elsewhere on 2020-Nov-11 Wed 08:44
2020-Nov-11 Wed 08:44
2109

The ventilation and circulation of air in horticultural greenhouses are of great importance for the growth and well-being of plants. Depending on the situation in and around the greenhouse, various issues can arise in the indoor climate, which can be resolved by, among others, the correct use of fans. In…

A drop in temperatures is enough to halt zucchini production

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Submitted by Elsewhere on 2020-Nov-09 Mon 13:29
2020-Nov-09 Mon 13:29
2078

"The high zucchini prices of the past few days were due to the sudden lack of produce. Night-time temperatures dropped to 7-8°C, halting production," reports Roberto Bortolotti, vegetable sales manager for De Luca - Campitiello at Caab Bologna. Roberto Bortolotti "In the fall, a few nights at a low…

"Dehumidifiers and air movers are used from seed storage to harvest"

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Submitted by Elsewhere on 2020-Nov-05 Thu 10:11
2020-Nov-05 Thu 10:11
2052

“We started by selling our smaller standalone dehumidifiers. Now, we have our walk-in IQ series, with two units fitting on the back of a transport truck,” according to Quest president, Clifton Tomasini. Quest is a North American-based manufacturer specializing in humidity control across various…

Screens: Leave the truss alone!

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Submitted by Elsewhere on 2020-Nov-05 Thu 10:10
2020-Nov-05 Thu 10:10
2056

In relatively hot climates like most of Australia, using an automated Shade or Energy Screen is an indispensable tool, but it is also a compromise – it’s really good at cooling the greenhouse, or really good at keeping it warm, but it can’t do both very well. So, Growers are increasingly opting for Double Screens – one screen…

Our Soil is Poised To Release Billions of Tons of Carbon

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Submitted by Elsewhere on 2020-Nov-02 Mon 13:45
2020-Nov-02 Mon 13:45
2022

Soil Spill

If the planet’s temperatures increase by just two degrees Celsius above pre-industrial levels, it could trigger a catastrophic release of even more carbon currently sequestered in the soil.

New projects, published Monday in the journal Nature Communications, suggest that scenario would release 230 billion tons of carbon — more than twice as much as the U.S. has emitted into the atmosphere over the last century. Needless to say, that grim eventuality could fast-track us toward planetary disaster.

Is your greenhouse winter ready?

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Submitted by Elsewhere on 2020-Oct-23 Fri 00:46
2020-Oct-23 Fri 00:46
1894

For areas that experience significantly colder weather and snow during the fall and winter seasons, it’s important to prepare your greenhouses so your crops are protected. Here are a few things to consider when preparing your commercial greenhouse operation for the fall and winter: Tidy upThings may have gotten a little messy…

"The unstoppable advance of pests and the pressure on prices make kaki cultivation unsustainable"

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Submitted by Elsewhere on 2020-Oct-21 Wed 16:41
2020-Oct-21 Wed 16:41
1880

The worrying increase in pests and the impact of the weather are causing the kaki production to fall at a higher rate than expected in the Region of Valencia, the fruit's main producing area in Spain. Although the prices that producers receive are higher compared to the same period last season, the…

Management of abiotic stress in horticultural crops

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Submitted by Elsewhere on 2020-Oct-06 Tue 12:34
2020-Oct-06 Tue 12:34
1691

Horticultural crops are exposed to multiple abiotic stresses because of ongoing climate change. Abiotic stresses such as drought, extreme temperatures, salinity, and nutrient deficiencies are causing increasing losses in terms of yield and product quality. The horticultural sector is therefore searching…

Climate change is making our food less safe

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Submitted by Elsewhere on 2020-Sep-30 Wed 09:22
2020-Sep-30 Wed 09:22
1600

Climate change is putting food safety at risk and action is needed to prepare the food system for the challenges ahead, according to the UN’s Food and Agriculture Organisation (FAO). FoodNavigator speaks to the FAO’s Vittorio Fattori, Food Safety and Quality Officer, and Keya Mukherjee, Food Safety and Quality Specialist, to learn more.

 

Canada: High temperatures trouble Ontario potato harvest

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Submitted by Elsewhere on 2020-Sep-28 Mon 19:45
2020-Sep-28 Mon 19:45
1578

According to Ontario’s potato specialist Eugenia Banks, Ontario’s potato harvest was progressing well, but had to stop over the past few days as temperatures rose above optimal harvest levels. Banks told potatoesincanada.com: “To keep a healthy crop in storage, pulp tuber temperature should not be above…

Report: Gene-Hacking Plants and Animals Could Fight Climate Change

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Submitted by Elsewhere on 2020-Sep-24 Thu 12:17
2020-Sep-24 Thu 12:17
1524

Feed Me, Seymour

When we think of geoengineering the environment to counteract global climate change, we typically conjure the image of massive projects like blocking out sunlight.

But a new report suggests that a biological approach to geoengineering — gene hacking the DNA of plants and animals to curb carbon emissions — could be a far more useful approach, according to Axios. In other words, the idea is that we need to alter the entire biosphere to make up for the damage humanity has done to the planet.

'Even with the best technology, 30 degrees is a bit warm for tomato production'

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Submitted by Elsewhere on 2020-Sep-23 Wed 13:15
2020-Sep-23 Wed 13:15
1506

Growing tomatoes in the desert using nothing but sunlight and seawater is a quantum leap forward for agtech innovation. So how can this technology be scaled and how can remote labour be found to help power Australia’s low-carbon food system? Imagine farming vegetables all year-round in Australia’s…

New US study says it may be time to re-think where crops are grown by 2045

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Submitted by Elsewhere on 2020-Sep-08 Tue 10:08
2020-Sep-08 Tue 10:08
1264

Record drought and frequent heatwaves could change where farmers grow their crops in the future, according to a new paper. Approximately one-third of the vegetables and two-thirds of the fruit and nuts consumed in America are grown in California, which is home to 76,000 farms. Some of these products make…

Gujarat state: Growers lose 60-70% of crops to rain

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Submitted by Elsewhere on 2020-Sep-01 Tue 09:09
2020-Sep-01 Tue 09:09
1198

Continuous rain over the past few days has almost destroyed the monsoon crops in various regions of Gujarat. The growers there have not only lost money spent on seeds, fertilisers etc; their efforts for the past two months will literally be wasted as they will have little or no harvest. Continuous…

Why cooling is an important part of climate control

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Submitted by Elsewhere on 2020-Aug-14 Fri 13:56
2020-Aug-14 Fri 13:56
1045

Why is cooling important? Well, first to control temperature and humidity, secondly to avoid plant stress, then also to prevent over-irrigation and to ensure flower set.  ​The selection of cooling systems depends on the amount of heat gained from the outside, as well as any heat generating equipment located…

More and more hail claims in Canada

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Submitted by Elsewhere on 2020-Jul-21 Tue 09:16
2020-Jul-21 Tue 09:16
844

The weather systems that moved through the Canadian prairies in late June/early July resulted in some significant crop damage.  According to the Canadian Crop Hail Association, agents are following up on about 1200 hail claims from storms earlier this month and more are still coming in. The storms resulted…