scholarly journals The influence of perennial bioenergy crops on the soil fertility restoration

Bioenergy ◽  
2021 ◽  
Author(s):  
M. V. Roik ◽  
O. M. Hanzhenko ◽  
H. S. Honcharuk
Keyword(s):  
Organic Carbon ◽  
Soil Fertility ◽  
Fertility Restoration ◽  
Bioenergy Crops ◽  
High Quality ◽  
Giant Miscanthus ◽  
Positive Effect

It was found that long-term cultivation of perennial cereal bioenergy plants has a positive effect on the fertility of low-yielding soils. Thus, for the cultivation of switchgrass for nine years, the content of organic carbon in the soil increased from 1.87 to 2.40%, and for the cultivation of giant miscanthus for six years from 1.87 to 2.42%. Conclusions. Laying plantations of perennial cereal bioenergy plants on low-yielding and erosion-prone lands helps to restore their fertility and provides a sustainable supply of high quality feedstock for the production of biofuels.

scholarly journals Effects of Organic Energy Crop Rotations and Fertilisation with the Liquid Digestate Phase on Organic Carbon in the Topsoil

Agronomy ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1393
Author(s):  
Karin S. Levin ◽  
Karl Auerswald ◽  
Hans Jürgen Reents ◽  
Kurt-Jürgen Hülsbergen
Keyword(s):  
Organic Carbon ◽  
Organic Farming ◽  
Biogas Production ◽  
Crop Rotations ◽  
Energy Crop ◽  
Long Term Effects ◽  
Liquid Digestate ◽  
Organic Farmers ◽  
Positive Effect

Combining organic farming and biogas production from agricultural feedstocks has been suggested as a way of achieving carbon (C) neutrality in Europe. However, as the long-term effects of C removal for methane production on soil organic carbon (SOC) are unclear, organic farmers in particular have questioned whether farm biogas production will have a positive effect on soil fertility. Eight years of data from an organic long-term field trial involving digestate fertilisation and various crop rotations (CRs) with differing proportions of clover-grass leys were used to calculate C inputs based on the CANDY model, and these modelled changes compared with measured changes in SOC content (SOCc) over the same period. Measured SOCc increased by nearly 20% over the eight years. Digestate fertilisation significantly increased SOCc. Fertilised plots with the highest proportion of clover-grass in the CR had the highest SOCc. The C inputs from clover-grass leys, even if they only made up 25% of the CR, were high enough to increase SOCc, even with the removal of all aboveground biomass and without fertilisation. Our results show that biogas production based on clover-grass leys could be an important part of sustainable farming, improving or maintaining SOCc and improving nutrient flows, particularly in organic farming, while simultaneously providing renewable energy.

scholarly journals Long-Term Monitoring of Soil Carbon Sequestration in Woody and Herbaceous Bioenergy Crop Production Systems on Marginal Lands in Southern Ontario, Canada

2020 ◽  
Vol 12 (9) ◽  
pp. 3901 ◽  
Author(s):  
Amir Behzad Bazrgar ◽  
Aeryn Ng ◽  
Brent Coleman ◽  
Muhammad Waseem Ashiq ◽  
Andrew Gordon ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Crop Production ◽  
Production Systems ◽  
Cropping Systems ◽  
System Level ◽  
Bioenergy Crops ◽  
Marginal Lands ◽  
Biomass Crops

Enhancement of terrestrial carbon (C) sequestration on marginal lands in Canada using bioenergy crops has been proposed. However, factors influencing system-level C gain (SLCG) potentials of maturing bioenergy cropping systems, including belowground biomass C and soil organic carbon (SOC) accumulation, are not well documented. This study, therefore, quantified the long-term C sequestration potentials at the system-level in nine-year-old (2009–2018) woody (poplar clone 2293–29 (Populus spp.), hybrid willow clone SX-67 (Salix miyabeana)), and herbaceous (miscanthus (Miscanthus giganteus var. Nagara), switchgrass (Panicum virgatum)) bioenergy crop production systems on marginal lands in Southern Ontario, Canada. Results showed that woody cropping systems had significantly higher aboveground biomass C stock of 10.02 compared to 7.65 Mg C ha−1 in herbaceous cropping systems, although their belowground biomass C was not significantly different. Woody crops and switchgrass were able to increase SOC significantly over the tested period. However, when long term soil organic carbon (∆SOC) gains were compared, woody and herbaceous biomass crops gained 11.0 and 9.8 Mg C ha−1, respectively, which were not statistically different. Results also indicate a significantly higher total C pool [aboveground + belowground + soil organic carbon] in the willow (103 Mg ha−1) biomass system compared to other bioenergy crops. In the nine-year study period, woody crops had only 1.35 Mg C ha−1 more SLCG, suggesting that the influence of woody and herbaceous biomass crops on SLCG and ∆SOC sequestrations were similar. Further, among all tested biomass crops, willow had the highest annual SLCG of 1.66 Mg C ha−1 y−1.

EFFICIENCY AND FEED VALUE OF FESTULOLIUM-BASED GRASS STANDS IN THE UPPER VOLGA REGION

2020 ◽  
Keyword(s):  
Soil Fertility ◽  
Perennial Grasses ◽  
Volga Region ◽  
High Quality ◽  
Protein Ratio ◽  
Symbiotic Efficiency ◽  
Upper Volga ◽  
Green Mass ◽  
The Upper Volga Region

Results of long-term researches on ways of creation of long - term highly productive legume-cereal grass stands on the basis of uncommon for the Ivanovo region culture-Festulolium are presented. As a result of research, for the first time in the region, an adaptive technology of cultivation of perennial grasses in mixed crops with the participation of this culture has been developed, which provides a balanced sugar-protein ratio of high quality feed and increases soil fertility. The main indicators of the technology: high adaptability to soil and climatic conditions, consistently high yields, balance and high nutritional value of green mass, increasing soil fertility due to the accumulation of a significant amount of biological residues and nitrogen, especially symbiotic, efficiency and effectiveness. The average for three years in a single crop Festulolium was characterized by the highest yield of fodder units among perennial grasses and have provided 3,88 thousand/ha of fodder units in the control and of 5.98 thousand/ha on the background of mineral nutrition. In the conditions of the upper Volga region, in order to increase the production of high quality ready-made feed, it is necessary to grow grass mixtures consisting of festulolium and basic perennial legumes, such as clover and alfalfa, variable in a ratio of 1:1, which provide a yield of green mass depending on the level of nutrition from 412 to 571 kg/ha, the collection offodder units from 6.63 to 8.99 thousand units/ha, digestible protein from 756 to 1024 kg/ha. The effectiveness of the technology is determined by low cost, high level of profitability up to 500% and cost recovery - 4-5 rubles./1 rubles costs, as well as environmental friendliness.

scholarly journals Effect of 26 Years of Intensively ManagedCarya cathayensisStands on Soil Organic Carbon and Fertility

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Jiasen Wu ◽  
Jianqin Huang ◽  
Dan Liu ◽  
Jianwu Li ◽  
Jinchi Zhang ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Soil Fertility ◽  
Ph Value ◽  
Organic Fertilizers ◽  
Intensive Management ◽  
Active Organic Matter ◽  
Carya Cathayensis ◽  
Major Nutrients

Chinese hickory (Carya cathayensis), a popular nut food tree species, is mainly distributed in southeastern China. A field study was carried out to investigate the effect of long-term intensive management on fertility of soils under aC.cathayensisforest. Results showed that after 26 years’ intensive management, the soil organic carbon (SOC) content of the A and B horizons reduced by 19% and 14%, respectively. The reduced components of SOC are mainly the alkyl C and O-alkyl C, whereas the aromatic C and carbonyl C remain unchanged. The reduction of active organic matter could result in degradation of soil fertility. The pH value of soil in the A horizon had dropped by 0.7 units on average. The concentrations of the major nutrients also showed a decreasing trend. On average the concentrations of total nitrogen (N), phosphorus (P), and potassium (K) of tested soils dropped by 21.8%, 7.6%, and 13.6%, respectively, in the A horizon. To sustain the soil fertility andC.cathayensisproduction, it is recommended that more organic fertilizers (manures) should be used together with chemical fertilizers. Lime should also be applied to reduce soil acidity.

scholarly journals Application of bioenergy cultures for bioplastic production

Bioenergy ◽  
2021 ◽  
Author(s):  
M. V. Roik ◽  
V. M. Sinchenko ◽  
A. K. Nurmuhammedov ◽  
O. M. Hanzhenko ◽  
M. Ya. Humentyk
Keyword(s):  
Natural Resources ◽  
Agricultural Waste ◽  
Scientific Research ◽  
Raw Material ◽  
Bioenergy Crops ◽  
Soluble Carbohydrates ◽  
Biotechnological Production ◽  
High Quality ◽  
High Yields

Introduction. Today, alternative natural resources are increasingly used as the main industrial raw material used not only for the production of biofuels and various types of energy, but also other products. Bioenergy crops of miscanthus and switchgrass, which are characterized by long-term high yields, in contrast to, for example, agricultural waste, can be a promising way to attract new sources of high quality cellulose and for the production of bioplastics. The latest scientific research of miscanthus confirms the hypothesis of Ukrainian scientists of the 1980s and scientists from other countries that the raw material of this cellulose-containing crop is fully positioned as a material for the production of cellulose and bioplastics, and for biotechnological production of soluble carbohydrates and biofuels. Conclusion. It is proved that bioenergy crops of miscanthus and switchgrass can be a promising way to attract new sources of high quality cellulose for bioplastics production.

scholarly journals Inorganic Fertilizers Application Effect on Helianthus annuus Crop Yield Indicators in Western Azerbaijan

2020 ◽  
Vol 6 (10) ◽  
pp. 143-148
Author(s):  
N. Abbasova
Keyword(s):  
Soil Fertility ◽  
Helianthus Annuus ◽  
Crop Yield ◽  
Seed Yield ◽  
Sunflower Seed ◽  
Fertilizer Application ◽  
High Quality ◽  
Inorganic Fertilizers ◽  
Structural Indicators ◽  
Positive Effect

The paper presents the results of studies of the effect of inorganic fertilizers on the structural indicators of Helianthus annuus crop yield in the western part of Azerbaijan. As a result of the studies carried out, it can be concluded that there was a positive effect when fertilizer application. So, there was an increase in the diameter of the basket by 0.8–2.3 cm, the number of achenes in the basket — 54.7–204.6 pcs, the mass of seeds in the basket — 5.5–24.1 g, and an increase in the mass of 1000 seeds — by 3.5–13.7 g in comparison with the non-fertilizer control. To obtain a high and high-quality sunflower seed yield and restore soil fertility on the irrigated chestnut soils of the Ganja-Gazakh zone, it is recommended that farms use inorganic fertilizers annually at the N120P120K120.

scholarly journals Long-Term Effect of Fertilizer and Crop Residue on Soil Fertility in the Moldavian Plateau

2012 ◽  
Vol 45 (2) ◽  
pp. 29-41 ◽  
Author(s):  
C. Ailincăi ◽  
G. Jităreanu ◽  
D. Bucur ◽  
Despina Ailincăi
Keyword(s):  
Organic Carbon ◽  
Soil Fertility ◽  
Crop Residue ◽  
Term Effect ◽  
Mineral Fertilizers ◽  
Research Station ◽  
Organic Carbon Content ◽  
Mineral Fertilization ◽  
Long Term Effect

Long-Term Effect of Fertilizer and Crop Residue on Soil Fertility in the Moldavian Plateau Since 1965, at the Agricultural Research Station of Podu-Iloaiei, Iaşi County, Romania (47°12' N latitude, 27°16' E longitude), investigations were conducted on the influence of different fertilizer systems on production and soil fertility. For wheat and maize crops, placed in a three-year rotation (pea - wheat - maize), three fertilization systems were experienced: (1) mineral fertilization with nitrogen and phosphorus rates until N140P100; (2) manure fertilization (20, 40, and 60 t/ha), with and without mineral fertilization and (3) mineral fertilizers + hashed residue applied in autumn under the base ploughing. The paper presented the results of investigations concerning the influence of long-term fertilization (46 years) on some chemical characteristics of Cambic Chernozem from the Moldavian Plateau. The climatic conditions in the Moldavian Plain were characterized by annual mean temperature of 9.6°C and a mean rainfall amount, on 50 years, of 553.5 mm, of which 141.5 mm during September-December and 412.0 mm during January-August. After 46 years of experiences, in pea-wheat-maize crop rotation, the content of organic carbon from soil has decreased by 22.3% (4.2 g/kg soil) at the unfertilized control and by 14.4% (2.7 g/kg soil) at the rate of N120P80. In wheat and maize, nitrogen uptake by weeds was between 7 and 9.5 kg/ha from all the plots. Applying moderate rates of mineral fertilizers (N80P60), together with 6 t/ha wheat straw or 40 t/ha manure, has determined the increase in organic carbon content from soil by 0.5 and, respectively, 2.8 g/kg.

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