canopy growth Articles
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Ground Control Points for Precision Imagery
With any form of data collection, there is uncertainty. For instance, today’s Global Positioning System (GPS) enabled smartphones are typically accurate to within a 4.9 m (16 ft.) radius under open sky. This radius matters in precision agriculture, when growers often want to consistently monitor thousands of plants week after week, year after year! To address this issue, we at Pollen ...
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Interactive effects of carbon dioxide and water stress on potato canopy growth and development
Reductions in potato (Solanum tuberosum L.) canopy growth are observed with mild water stress. Potato growth is enhanced by elevated atmospheric carbon dioxide ([CO2]), but interactions of [CO2] and water stress on canopy formation and dry matter partitioning have not been studied. Two soil-plant-atmosphere research (SPAR) experiments were conducted at 370 or 740 µmol mol–1 [CO2] and six ...
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AquaCrop—The FAO crop model to simulate yield response to water: III. Parameterization and testing for maize
The first crop chosen to parameterize and test the new FAO AquaCrop model is maize (Zea mays L.). Working mainly with data sets from 6 yr of maize field experiments at Davis, CA, plus another 4 yr of Davis maize canopy data, a set of conservative (nearly constant) parameters of AquaCrop, presumably applicable to widely different conditions and not specific to a given crop cultivar, was evaluated ...
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Regulated Deficit Irrigation for Wine Grapes – Balancing Canopy, Yield and Quality
Sebastian Braum, Ph.D., is WaterBit’s director of soil science and agronomy. He is writing a series of posts for our blog that delve into irrigation-related topics. In the piece below, he discusses deficit irrigation in wine grapes. Dr. Braum holds a doctorate in soil chemistry from the University of Wisconsin-Madison and he studied soil science, plant nutrition, agronomy and viticulture at ...
By Farm(x)
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Effect of System of Rice Intensification (SRI) with “Agragel (T-400)”Practices on Yield Attributes,Yield and Water Productivity of Rice (Oryza Sativa l.) - Case Study
Work History: The Shyamsundar Sister Nivedita Sangha, a dedicated NGO working with various programme to eleviate the socio-economic poverty of common marginal farmers and the people of BPL level families had already started their work on system of Rice Intensification(SRI) to aware the paddy farmers about proper use of water in cultivation as well as increseing trend of productivity. The Field ...
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Efficient Vineyard Irrigation Series #3: How to dynamically optimise irrigation scheduling
As climate change increases the cost and scarcity of water, as well as consumer concerns over environmental impact, efficient irrigation is fast becoming a key component of successful vineyard management. The need for efficiency is also growing with the increased frequency of extreme weather events (e.g. extreme heat, fluctuating rainfall, bushfires and droughts), which effect vine growth and ...
By Deep Planet
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Ground-based canopy reflectance sensing for variable-rate nitrogen corn fertilization
Nitrogen available to support corn (Zea mays L.) production can be highly variable within fields. Canopy reflectance sensing for assessing crop N health has been proposed as a technology to base side-dress variable-rate N application. Objectives of this research were to evaluate the use of active-light crop-canopy reflectance sensors for assessing corn N need, and derive the N fertilizer rate ...
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Light Uniformity - Comparing LED and HPS Luminaires
Light uniformity is an important factor when it comes to growing a consistent crop and optimizing your growing environment, however, there has been some misinformation about the way HID and LED luminaires distribute light and affect plant health. As a manufacturer of both HID and LED technology, P.L. Light Systems always strives to show the complete picture of both technologies. We think both ...
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Avocados in Precision Agriculture
At Pollen Systems, we are always excited to apply our PrecisionView approach to the crops we know and love. One fruit we keep returning to at work (and in our favorite recipes) is the beloved avocado. Adapted to rainforests by nature, avocados grow vigorously and will develop a dense canopy in a relatively short time. This growth habit is a challenge unique to cultivating avocados, as each tree ...
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Biomass estimation equations for tropical deciduous and evergreen forests
In this study, linear and non-linear regression equations were developed to estimate biomass of tropical forests along with estimates of goodness of fit and percentage of errors. Basal area, average height of trees and tree density data from published reports, were used to develop equations to estimate biomass of deciduous and evergreen forests. Basal area and height of trees are found to give ...
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Canopy nitrogen reserves: impact on soybean yield and seed quality traits in northern latitudes
Soybean [Glycine max (L.) Merr.] seed produced in the upper Midwest of the United States is lower in protein concentration than soybean produced throughout much of the Corn Belt, the southern United States, and Brazil. As protein comprises on average more than 400 g kg–1 of the soybean seed, yields in northern latitudes may be limited by seed protein accrual. Our objective was to examine the role ...
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Linking Vine Growth Stages and Spraying Practices with AI Agritech
Pesticide/fungicide and liquid foliants and fertilisers are a crucial aspect of vineyard management. Sprays keep your vines disease-free, which helps you always produce top-quality fruit. By producing the very best grapes with every harvest, you'll maximise your earnings each time. Both amateur and veteran viticulturists still suffer from inefficient spraying practices, which is not only a ...
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Forest & Plant Canopy Analysis - Tools & Methods
Canopy Analysis for Crop, Forest & Plant Research The range of applications of canopy cover analysis is truly astounding. Canopy analysis derives its usefulness from the vitality of the canopy. Many methods to measure canopy cover have been developed in the last 80 years to meet various objectives. Not surprisingly, there have been several comparisons of the tools in different parts of the ...
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Tree, Crop & Plant Stress – A Primer on Abiotic and Biotic Stressors
The natural conditions in which plants and trees grow are neither uniform nor controlled. Many changes or fluctuations, even if they are temporary, can have a negative impact on and stress plants. The factors which can lead to stress can be one of two types: abiotic or biotic. Stress can have serious repercussions on various phases of a plant’s growth and, ultimately, crop productivity. ...
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Tree, crop & plant stress – A primer on abiotic and biotic stressors
The natural conditions in which plants and trees grow are neither uniform nor controlled. Many changes or fluctuations, even if they are temporary, can have a negative impact on and stress plants. The factors which can lead to stress can be one of two types: abiotic or biotic. Stress can have serious repercussions on various phases of a plant’s growth and, ultimately, crop productivity. ...
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