leaf and soil Articles
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Canada: fighting Cercospora in sugar beets - Case Study
Case Study Summary Application Decision Support System to fight Cercospora Leafspot in sugar beets Location Michigan and Ontario, Canada Products deployed A850 Telemetry Gateway (several) A753 addWAVE UHF A723 addIT UHF SEN-R Temperature and rel. humidity sensor RG Rain Gauge WET Leafwetness sensor Participating Organizations Michigan Sugar Corporation Parameters recorded Air temperature and ...
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Canopy gas exchange measurements of cotton in an open system
A portable, open transparent chamber system for measuring canopy gas exchanges was developed and tested. Differentials between incoming and outgoing atmospheric H2O and CO2 concentrations were used to calculate canopy transpiration (E) and net assimilation (A) at 10-s intervals using solenoid valve actuated sample lines connected to an infrared gas analyzer. A programmable data logger controlled ...
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Mercury Concentrations in Bicknell’s Thrush and Other Insectivorous Passerines in Montane Forests of Northeastern North America
Anthropogenic input of mercury (Hg) into the environment has elevated risk to fish and wildlife, particularly in northeastern North America. Investigations into the transfer and fate of Hg have focused on inhabitants of freshwater aquatic ecosystems, as these are the habitats at greatest risk for methylmercury (MeHg) biomagnification. Deviating from such an approach, we documented MeHg ...
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Creeping bentgrass putting green turf responses to two summer irrigation practices: Rooting and soil temperature
Light and frequent (LF) and deep and infrequent (DI) irrigation are two common practices for golf course managers. Few studies have compared the effects of these two opposing irrigation practices on summer root performance in creeping bentgrass (Agrostis stolonifera L.). The objectives of this field study were to quantify summer root development and longevity in response to LF vs. DI irrigation ...
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Soil water reserve estimation and vegetation relationships in a Mediterranean sub-humid forested catchment
A simple water balance model was used to calculate soil water reserve in a Mediterranean forested catchment. The relationship between soil water reserve and leaf water potential and stem water content was analysed. The usefulness of these variables as plant water status indicators was tested. The analyses were developed with a seven-year-long database (2001–2007) in the case of soil water content ...
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Yield prediction and disease advice, frost warning - Case Study
The National Mexican Weather Station Network Case Study Summary Applications Yield prediction, disease monitoring, frost warning, soil moisture monitoring Location Mexico Products deployed Adcon ETo stations Adcon rain gauge stations Adcon soil moisture stations Contributors Agrienlace SA de C.V. Participating Organizations INIFAP (Ministry of Agriculture) & COFUPRO Parameters ...
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Precision viticulture technology a key to producing premium quality wines in changing climate [part 2]
In the first part of the article, we wrote about how precision viticulture technologies can help with choosing long-term and short-term cultivation strategies in order to adapt to climate changes, and named some of the precision viticulture technologies that exist on the market. Now let’s have a look at how and which precision viticulture technologies can help with specific vineyard ...
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Influence of maturity at harvest, N fertiliser and postharvest storage on dry matter, ascorbic acid and β-carotene contents of vegetable amaranth (Amaranthus hypochondriacus)
Vegetable amaranth is a leafy vegetable traditionally grown in sub-Saharan Africa and Asia where it is the most consumed traditional vegetable. It is considered to have high nutritional quality, containing relatively large amounts of vitamins A and C. We have assessed the influence of the maturity of the vegetable and soil nutrition on the visual and nutritional quality of amaranth. We found that ...
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Availability of iodide and iodate to spinach (Spinacia oleracea L.) in relation to total iodine in soil solution
Abstract A greenhouse pot experiment was carried out to investigate the availability of iodide and iodate to soil-grown spinach (Spinacia oleracea L.) in relation to total iodine concentration in soil solution. Four iodine concentrations (0, 0.5, 1, 2 mg kg−1) for iodide (I−) and iodate (IO3−) were used. Results showed that the biomass productions of spinach were not ...
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Banana leaf and glucose mineralization and soil organic matter in microhabitats of banana plantations under long‐term pesticide use
Soil organic matter (SOM) and microbial activity are key components of soil quality and sustainability. In tropical humid tropics of Costa Rica three pesticide regimes were studied: fungicide (low input); fungicide and herbicide (medium input); and fungicide, herbicide and nematicide (high input), under continuous banana cultivation for 5 (young) or 20 (old) years, in three microhabitats: ...
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Probes reveal soil moisture’s many secrets
Soil moisture probes have been around for a long time, but they remain one of those mysterious agricultural instruments that only a small handful of people attempt to understand or use. “Part of the problem is people don’t trust the information,” says Ryan Hutchison of South Country Equipment in Saskatchewan. He was at Crop Connect 2019 in Winnipeg to give a presentation ...
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How to grow more food with less water
Scientists and farmers collaborate on a quest for more efficient irrigation This story was co-published with Civil Eats, a daily news source for critical thought about the American food system. From reading the weather to choosing a crop, farming has always been a hands-on enterprise. When a farmer wonders how much water a crop needs, a simple test has always sufficed: Grab a handful of soil ...
By Ensia
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