Medium Rotation Eucalyptus Plant: A Comparison of Storage Systems

Eucalyptus spp. are among the most suitable species for biomass production, even for the firewood derived from medium-rotation coppice (MRC). The general problem of wood is that it cannot be utilized immediately because of the high moisture content, which in the combustion process would reduce remarkably the yield of energy. In this context, outdoor storage of whole stems without branches (WS), outdoor storage of whole stems with branches (WSB), open shed storage of firewood logs in mesh bags (OSF), and outdoor firewood logs in mesh bags (ODF) of Eucalyptus spp woody biomass were compared in term of moisture and dry matter loss to evaluate the most convenient form of storing biomass deriving from a medium-rotation coppice. During the storage period, ODF showed higher moisture values than OSF, WSB, and WS, underlining that moisture reduction is related to local climatic conditions, pile size and permeability (compaction). However, at the end of the storage period, the four options reached a similar moisture to the commercial one of fuel wood (around 15%). WSB showed the highest loss of dry matter (18%), which can be ascribed to the drying and falling process of the leaves. In conclusion, the qualitative and quantitative characteristics of the biomass were similar after the different storage systems, producing firewood suitable for new market opportunities.

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Machine learning algorithms to predict the dry matter loss of stored soybean grains ( Glycine max L.)

Journal of Food Process Engineering ◽

10.1111/jfpe.13820 ◽

2021 ◽

Author(s):

Juliana Soares Zeymer ◽

Felipe Guzzo ◽

Marcos Eduardo Viana Araujo ◽

Richard Stephen Gates ◽

Paulo Cesar Corrêa ◽

...

Keyword(s):

Machine Learning ◽

Glycine Max ◽

Dry Matter ◽

Learning Algorithms ◽

Machine Learning Algorithms ◽

Dry Matter Loss ◽

Glycine Max L

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Study of the temperature regime of wheat storage In the elevator of the far eastern region of the Russian Federation

10.33920/igt-01-2010-11 ◽

2020 ◽

pp. 75-80

Author(s):

V.V. Looze ◽

A.V. Gavrilov ◽

K.B. Gurieva ◽

S.L. Beletskiy

Keyword(s):

Russian Federation ◽

Precast Concrete ◽

Storage Period ◽

Climatic Conditions ◽

Eastern Region ◽

Wheat Grain ◽

Time Intervals ◽

Temperature Changes ◽

The Russian Federation ◽

Far Eastern

The article presents and analyzes the temperature conditions of storage of wheat grain batches during the six-year storage period in silos of precast concrete elevators in the Far Eastern Region of the Russian Federation. The time intervals of grain temperature changes depending on the corresponding climatic conditions are considered. It is shown that the grain mass in the silos of elevators is in a cooled state, at a temperature below 10 °C, most of the annual cycle.

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Kinetics of mold growth and dry matter loss for hybrid rough rice

10.13031/aim.20162461712 ◽

2016 ◽

Keyword(s):

Dry Matter ◽

Mold Growth ◽

Dry Matter Loss ◽

Rough Rice ◽

Kinetics Of

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NONLINEAR AGROMETEOROLOGICAL MODELS FOR ESTIMATING LYCHEE FRUIT GROWTH

Revista Brasileira de Fruticultura ◽

10.1590/0100-29452017169 ◽

2017 ◽

Vol 39 (2) ◽

Author(s):

LUCAS EDUARDO DE OLIVEIRA APARECIDO ◽

RAFAEL BIBIANO FERREIRA ◽

GLAUCO DE SOUZA ROLIM ◽

BIANCA SARZI DE SOUZA ◽

PAULO SERGIO DE SOUZA

Keyword(s):

Fruit Development ◽

Dry Matter ◽

Potential Evapotranspiration ◽

Climatic Conditions ◽

Fruit Growth ◽

Multivariate Models ◽

Degree Days ◽

Fresh Matter ◽

Meteorological Elements ◽

Fruit Diameter

ABSTRACT The influence of climate on the development of lychee fruit is complex, but few studies have discussed the problem. We developed agrometeorological models for simulating the development of fruit fresh matter (FM), fruit dry matter (DM), fruit length (LE), fruit diameter (DI), fruit volume (VO), and fruit number per cluster (FN) of the “Bengal” lychee cultivar as functions of climatic conditions. We conducted three analyses: (a) the influence of mean meteorological elements on the rates of fruit growth, (b) estimation of fruit development by the agrometeorological models using sigmoidal adjustments, and (c) simulation of fruit development using multiple nonlinear regression of two meteorological elements to improve the accuracy. A rate of water deficit (WD) near 5 mm d-1 maximised FM, DM, LE, DI, and VO. Increases in potential evapotranspiration (PET), degree days (DD), and actual evapotranspiration (AET) were correlated with increases in VO and decreases in LE and NF. Models estimating fruit development indicated that the accumulation of WD, PET, AET, and DD had sigmoidal relationships with all variables of fruit growth except FN. FN decreased as WD, PET, AET, and DD increased. The adjusted multivariate models were accurate, with the largest error of 6.45 cm3 (VO). The best models were: FM = f(SWD, DD), LE = f(SAET, DD), DI = f(SWD, DD), VO = f(SWD, DD), and FN = f(SAET, WD).

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THE EFFECTS OF ENSILAGE ON THE NUTRITIVE CHARACTERISTICS OF POULTRY WASTE - CARBOHYDRATE MIXTURE AS LIVESTOCK FEED

Nigerian Journal of Animal Production ◽

10.51791/njap.v23i1.2165 ◽

2021 ◽

Vol 23 (1) ◽

pp. 72-75

Author(s):

J. A. IBEAWUCHI ◽

J. O. ECHUMBA

Keyword(s):

Crude Protein ◽

Dry Matter ◽

Storage Period ◽

Test Tube ◽

Poultry Waste ◽

Feed Ingredient ◽

Carbohydrate Source ◽

Ph Values ◽

Livestock Feed ◽

Sorghum Flour

In a laboratory study, the results of ensiling caged layer poultry waste with carbohydrate source to enhance its usefulness as feed ingredient for livestock were reported. Poultry waste (20%) mixed with cassava or sorghum flour was ensiled in test-tube silos and sampled at intervals during a 14-day storage period. In both mixtures, the dry matter (DM), crude protein (CP) and pH values were significantly. in Nigeria, poultry waste was affected (P<0.05) with time after ensiling. The DM values were higher (P<0.05) on day 10 than on day 0,5 or 14. The poultry waste-sorghum mixture increased in CP level (P<0.05) from 8.0% on day O to 9.1% on day 14 while in the cassava mixture CP increased from 7.0% on day 7.6% on day 10. There was a drop in pH from 6.4 to 4.6 in both mixtures at the end of the storage period. The results showed that ensiling cassava or sorghum flour with poultry waste enriched the nitrogen content of the mixture thereby enhancing its usefulness as livestock feed.

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Influence of maturity stage on in situ dry matter degradability of six maize varieties in fistulated sheep

Proceedings of the British Society of Animal Science ◽

10.1017/s1752756200004713 ◽

2001 ◽

Vol 2001 ◽

pp. 89-89

Author(s):

M. A. Akbar ◽

P. Lebzien ◽

G. Flachowsky

Keyword(s):

Dry Matter ◽

Nutritive Value ◽

Climatic Conditions ◽

Maturity Stage ◽

Factors Affecting ◽

Maize Varieties ◽

Feed Value ◽

Two Stages

The fresh weight, dry matter (DM) contents and nutritional quality in maize vary considerably with variation in varieties, stages at which harvested, climatic conditions and agronomic factors. Recently, agronomists, nutritionists, and dairy producers have placed increased emphasis on factors affecting the nutritive value of maize. However, very little information is available on quantitative variability of the feed value of maize fodder as affected by such factors. This study was, therefore, carried out to assess the effect of harvesting of six different maize varieties at two stages (dates) of grain maturity on quality of both the stover and cobs.

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Effect of pre-utilisation and harvest time on the quantity and quality of fodder on extensive pastures

Acta Agronomica Hungarica ◽

10.1556/aagr.58.2010.2.10 ◽

2010 ◽

Vol 58 (2) ◽

pp. 185-193 ◽

Cited By ~ 1

Author(s):

M. Bajnok ◽

L. Szemán ◽

J. Tasi

Keyword(s):

Festuca Arundinacea ◽

Dry Matter ◽

Weather Conditions ◽

Climatic Conditions ◽

Energy Concentration ◽

List Type ◽

Regeneration Period ◽

Yield And Quality ◽

June July

No significant studies have yet been reported in Central Europe on the yield and quality of winter harvest pastures. The aim of the research was to collect information about the effect of pre-utilisation (June, July and August) and winter harvest date (November, December, January) on the quantity and quality of fodder from Festuca arundinacea stands. The dry matter, energy, ADF, ADL and ergosterol contents of the yield were examined and it was found that: 1. A shorter regeneration period between harvests resulted in lower dry matter levels, but also in a higher energy concentration and lower ergosterol concentration. 2. The yield and energy concentrations decreased, whereas the ADF, ADL and ergosterol concentrations increased as the winter progressed. 3. Fodder harvested in November produced the best results in terms of yield quantity and quality. The highest yield and energy values were thus achieved by harvesting in November, regardless of pre-utilisation. Despite the cold and the long period of snow cover, the energy values of samples harvested in December and January showed no significant decrease. The weather conditions were more important for fodder quantity and quality than the frequency or date of harvesting. Thus, under the continental climatic conditions in Hungary, extensive utilisation, until late November or early December, is recommended.

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Effect of different agronomical measures on yield and quality of autumn saved herbage during winter grazing – 2nd communication: Crude protein, energy and ergosterol concentration

Czech Journal of Animal Science ◽

10.17221/3939-cjas ◽

2011 ◽

Vol 51 (No. 6) ◽

pp. 271-277 ◽

Cited By ~ 7

Author(s):

W. OPITZ VON BOBERFELD ◽

K. BANZHAF ◽

F. HRABE ◽

J. SKLADANKA ◽

S. KOZLOWSKI ◽

...

Keyword(s):

Crude Protein ◽

Dry Matter ◽

Climatic Conditions ◽

The Czech Republic ◽

Central European ◽

Yield And Quality ◽

Protein Energy ◽

Winter Grazing ◽

Adequate Quantity

In addition to the results published in the first communication (Opitz von Boberfeld et al., 2006) this paper presents crude protein, energy (ME) and ergosterol concentrations of autumn saved herbage at different sites in Central Germany, Poland, Hungary and the Czech Republic. Within these sites, the influence of the factors pre-utilisation and winter harvest date was tested over three consecutive years. Related to the different climatic conditions of the sites, crude protein concentrations of the growths pre-utilised in July varied from 149 g/kg in November to 134 g/kg of dry matter (DM) in January. The influence of climatic conditions was different on each location and varied depending on the year. Generally, the consistent effect of the factor “site” related to altitude could not be observed. While the energy concentrations decreased with advancing winter and partly reached the values below 6 MJ ME/kg of DM in January, the ergosterol concentrations increased. The results demonstrate that under Central European conditions autumn saved herbage, pre-utilised in July, could provide adequate quantity and quality for suckler cows until December. Afterwards, the utilisation of preserved forages becomes essential.  

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Dry matter and quality changes during and after making pasture hay

Australian Journal of Experimental Agriculture ◽

10.1071/ea9660394 ◽

1966 ◽

Vol 6 (23) ◽

pp. 394 ◽

Cited By ~ 3

Author(s):

IH Cameron

Keyword(s):

Dry Matter ◽

Storage Period ◽

The Other ◽

Research Station ◽

Quality Changes ◽

Curing Period ◽

Early Autumn ◽

North Eastern ◽

Conventional Manner

Changes in the dry matter and quality of pasture hay cured in different ways, and exposed in the paddock in various forms for up to eight months, were measured in two seasons at the Rutherglen Research Station in north-eastern Victoria. Comparisons were made with standing (dry) pasture at one extreme and at the other with hay cured in the conventional manner, baled, and stored under cover. Changes in dry matter in the curing period were small for conventionally cured hay under the conditions of the experiments. Relatively large losses (8 to 14 per cent of the cured hay) were attributable to baling. In the storage period, pasture left standing lost 68 per cent of its dry matter in three months of summer and its quality deteriorated markedly. All the forms of conservation reduced the rate of these losses, the effectiveness of a particular method depending largely on the degree of exposure of the hay to weathering. Hay baled and stored under cover was the best (6-8 per cent loss of dry matter m eight months with little change in quality). Bales stooked in the paddock were well protected for up to seven months (17 per cent loss of dry matter), and losses for windrows and cocks of loose hay were within reasonable limits (less than 45 per cent) for shorter periods over the summer and early autumn.

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