biomass harvesting Articles
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The Effect of Summer Harvesting of Phragmites australis on Growth Characteristics and Rhizome Resource Storage
The effect of harvesting the aboveground biomass on the growth of Phragmites australis in the subsequent growing season was investigated following cutting in June or July. Seasonal changes in rhizome biomass and total nonstructural carbohydrate (TNC) in seven age categories, from newly formed to six-years-old, were monitored for the two treatment stands and a control stand. The growth of the ...
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Biomass harvesting: how forest thinning can help prevent wildfires
Every year, wildfires plague the nation. Once there’s an ignition source, dry foliage in country areas can quickly go up in flames, spreading through woodlands or grasslands quickly. While some wildfires can be small, others can be devastating and blaze through thousands of acres. While there’s no way to predict where wildfires may start, there are ways to minimize the damage of ...
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Corn stover to sustain soil organic carbon further constrains biomass supply
Sustainable aboveground crop biomass harvest estimates for cellulosic ethanol production, to date, have been limited by the need for residue to control erosion. Recently, estimates of the amount of corn (Zea mays L.) stover needed to maintain soil carbon, which is responsible for favorable soil properties, were reported (5.25–12.50 Mg ha–1). These estimates indicate stover needed to maintain soil ...
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Biomass heterosis as the basis for grain and stover yield heterosis in arid zone pearl millet hybrids
Pearl millet [Pennisetum glaucum (L.) R. Br.] single cross hybrids, bred from high-yielding parental lines in favorable environments, are not well adapted to northwest India's arid zone. The objectives of these experiments were (i) to measure grain and stover yield heterosis in testcrosses of six landrace-based restorer populations and (ii) to understand how heterosis for biomass and harvest ...
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USDA amends BCAP
Last week, the U.S. Department of Agriculture (USDA) issued a final rule amending the Biomass Crop Assistance Program (BCAP) to implement changes required by the 2014 Farm Bill. BCAP provides financial assistance to owners and operators engaged in biomass crops, including collection, harvest, storage, and transportation. The final rule does not alter the scope of the BCAP but does reduce the ...
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Mass balance of Cadmium in two contrasting oak forest ecosystems
The mass balance of cadmium in forest ecosystems was parameterized. Soil pH is the main variable controlling retention of Cd in the soil and, hence, determines whether Cd is leached from the system or not. However the extent to which root uptake and biomass accumulation of Cd, or the return of Cd to the soil as internal cycling, influences forest Cd balances is unknown. Also unknown is whether ...
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Plant growth regulator effects on balancing vegetative and reproductive phases in alfalfa seed yield
The use of plant growth regulators (PGRs) has opened new prospects for increased seed production in grasses and legumes, but little information is available on the effects of PGRs on alfalfa (Medicago sativa L.) seed production. This study was conducted to evaluate the effects of applying chlormequat chloride (CCC) (2-chloroethyl-trimethyl-ammonium chloride) in combination with five PGRs ...
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Project - Tara Tekstil
A feasibility study on Blue Fashion using cultivated seaweed for textile production The goal is to study the feasibility of “Blue Fashion” using seaweed cultivated and harvested in the North Atlantic and process it into seaweed fibres, that can be used in knitted and woven fabric. The study will focus on four specific objectives: Identify and describe the functionalities of using ...
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Aquacrop—the FAO crop model to simulate yield response to water
This article introduces the FAO crop model AquaCrop. It simulates attainable yields of major herbaceous crops as a function of water consumption under rainfed, supplemental, deficit, and full irrigation conditions. The growth engine of AquaCrop is water-driven, in that transpiration is calculated first and translated into biomass using a conservative, crop-specific parameter: the biomass water ...
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Nitrogen and harvest frequency effect on yield and cost for four perennial grasses
A USDOE and USDA study concluded that more than 20 million U.S. hectares of cropland, idle cropland, and cropland pasture could be converted from current uses to the production of perennial grasses from which biomass could be harvested for use as biorefinery feedstock. This study was conducted to determine the most efficient species, level of N, and harvest frequency from among four perennial ...
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Assessment of aquacrop, cropsyst, and WOFOST models in the simulation of sunflower growth under different water regimes
This work compares the performance of AquaCrop, a crop simulation model developed by FAO, with that of two well established models, CropSyst and WOFOST, in simulating sunflower (Helianthus annuus L.) growth under different water regimes in a Mediterranean environment. The models differ in the level of complexity describing crop development, in the main growth modules driving the simulation of ...
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Marine Biomass Filtration with a Rocker Watervac 100-MS
It’s a 20 minute drive south from UC San Diego, through San Diego proper, to the salt pools at the South Bay Salt Works. The Salt Works comprises 28 ponds of various sizes and salinities, making it an ideal laboratory for the study of biomass distribution across multiple environments. The ponds range from the salinity of the ocean to the point where certain salts reach saturation and start ...
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Assessment of pasture biomass with the normalized difference vegetation index from active ground-based sensors
Calculating forage availability is challenging for managers of grazing systems due to the spatial heterogeneity of swards. Remote sensing applications may help to overcome this problem through estimates of biomass made with reflectance data. The objectives of this study were to (i) estimate herbage mass using an active, on-the-go, ground-based, narrow band sensor to calculate the normalized ...
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Heritability of drought resistance traits and correlation of drought resistance and agronomic traits in peanut
Inheritance of traits is important for developing effective breeding schemes for improving desired traits. The aims of this study were to estimate the heritabilities (h2) of drought resistance traits and the genotypic (rG) and phenotypic (rP) correlations between drought resistance traits and agronomic traits, and to examine the relationships between drought resistance traits under stressed and ...
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Assessment of a tannin-based organic polymer to harvest
Chlorella vulgaris biomass from swine wastewater digestate phycoremediationThis study investigated the efficiency of an organic tannin polymer alone or amended with polyacrylamide to harvest Chlorella vulgaris biomass grown in a laboratory-scale photobioreactor treating swine wastewater digestate. The effect of biomass concentration, tannin (TAN) dosages and changes in pH were evaluated in jar test experiments. Among the TAN concentrations tested (11, 22, 44, 89, 178 ...
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Irrigation frequency effects on growth and ethanol yield in sweet Sorghum
With the increasing costs of fossil fuels, new methods of generating renewable fuels need to be researched and developed. This study was undertaken to assess the effects of irrigation frequency on crop growth and ethanol yield of sweet sorghum [Sorghum bicolor (L.) Moench]. Nine combinations of pre- and postanthesis irrigation frequencies triggered by 35, 50, or 65% depletion of plant-available ...
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Drones and scissors help decide fertilizer rate
Both Swedish and European field trials show that winter oilseed rape that has taken up a lot of nitrogen in autumn needs less nitrogen in the spring. A thinner crop, which has not assimilated so much nitrogen in the autumn, needs more N fertilizer in the spring. In order to determine the autumn’s nitrogen uptake, the so-called “cutting method” is often used in Sweden. Drones ...
By Solvi AB
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Project - MacroPro
Seafood aquaculture is one of the fastest growing food production sectors, and there is a growing demand for organic farmed aquaculture products in many countries. Therefore, it is urgent to find alternative sustainable feed ingredients for aquaculture feeds to address these issues. A widely available but underutilised Nordic bio-resource is macroalgae (seaweed). Traditionally, macroalgae have ...
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Photobiology of microalgae mass cultures: understanding the tools for the next green revolution
Several obstacles and limitations currently prevent the industrial exploitation of microalgae for feed, food and biofuel production. Photobioreactors (closed systems for algae cultivation) suffer from high-energy expenditures for mixing and cooling, while cultures in large-scale open ponds, which have a more favorable net energy ratio, are unstable ecosystems in which maintaining selected strains ...
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Mushrooms can also make houses, clothes, and electronic devices?
Fungus is not only edible, it can also be used as a material to make bags, clothing, electronic devices and even buildings. Such materials tend to be plastic, renewable, biodegradable, environmentally friendly, and produced in more sustainable ways. In early 2022, researchers at Columbia University in the United States developed a lignocellulose-based fungus-bacteria biocomposite material. The ...
By Matexcel
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