scholarly journals Effects of sulfur and phosphorus application on the growth, biomass yield and fuel properties of leucaena (Leucaena leucocephala (Lam.) de Wit.) as bioenergy crop on sandy infertile soil

2016 ◽  
Vol 50 (1) ◽  
pp. 54-59 ◽  
Author(s):  
Songyos Chotchutima ◽  
Sayan Tudsri ◽  
Kunn Kangvansaichol ◽  
Prapa Sripichitt
Keyword(s):  
Leucaena Leucocephala ◽  
Biomass Yield ◽  
Fuel Properties ◽  
Bioenergy Crop ◽  
Phosphorus Application ◽  
Infertile Soil

scholarly journals Biomass Yield and Nutrient Responses of Switchgrass to Phosphorus Application

2012 ◽  
Vol 5 (1) ◽  
pp. 71-78 ◽  
Author(s):  
M. K. Kering ◽  
J. T. Biermacher ◽  
T. J. Butler ◽  
J. Mosali ◽  
J. A. Guretzky
Keyword(s):  
Biomass Yield ◽  
Phosphorus Application

Factors affecting the early growth of Leucaena leucocephala

1997 ◽  
Vol 37 (1) ◽  
pp. 35 ◽  
Author(s):  
N. J. Brandon ◽  
H. M. Shelton ◽  
D. M. Peck
Keyword(s):  
Seedling Growth ◽  
Leucaena Leucocephala ◽  
Am Fungi ◽  
Early Growth ◽  
Panicum Maximum ◽  
P Deficiency ◽  
Early Seedling Growth ◽  
Early Seedling ◽  
Phosphorus Application

Summary. Slow seedling growth is a limitation to the more widespread adoption of the tree legume, leucaena (Leucaena leucocephala). Three glasshouse trials examined the role of arbuscular mycorrhiza and phosphorus (P) nutrition in determining early growth and nodulation of leucaena. Treatments included soil types, inoculation with arbuscular mycorrhizal (AM) fungi, P application, grass competition and fumigation with methyl bromide, an anti-fungal agent. Plant measurements included colonisation by AM fungi, nodule weight, tissue nitrogen (N) and P concentrations. Slower early growth of leucaena in a soil from Mt Cotton than in soils from Gayndah or Theodore was due to slow colonisation of roots by AM fungi. Sequential harvests of plants revealed that rate of colonisation in the Mt Cotton soil was only half that in the Theodore soil prior to 28 days after planting resulting in subcritical P concentrations 21 days after sowing and an approximate halving of top dry weight 41 days after sowing. However, following increased infection, tissue P concentration and final plant growth 98 days after sowing were similar in both soils. Early seedling growth in the Mt Cotton soil was increased by inoculating the soil with mulch containing AM fungi but not with soil collected from beneath established leucaena added at a lower rate. Phosphorus application significantly increased growth of leucaena seedlings, but only the highest rate of 1200 kg P/ha was able to prevent early P deficiency. Final growth was reduced by 50% in the presence of Panicum maximum as a result of increased competition for N and P and by 90% in fumigated soil as a result of P deficiency. The results of these experiments confirm the important role of AM fungi on early seedling growth of leucaena. However, the potential to increase early growth using a soil or mulch inoculum containing AM fungi or P fertiliser may be limited by the high rates of application needed. More work is needed to determine whether slow rate of infection is a significant limitation in soils other than the Mt Cotton soil in the field.

Effect of Pruning Height on Shoot Biomass Yield of Leucaena leucocephala

2006 ◽  
Vol 5 (6) ◽  
pp. 1043-1046 ◽  
Author(s):  
S.U. Tipu . ◽  
K.L. Hossain . ◽  
M.O. Islam . ◽  
M.A. Hossain .
Keyword(s):  
Leucaena Leucocephala ◽  
Biomass Yield ◽  
Shoot Biomass

scholarly journals Biomass Yield and Fuel Properties of Different Poplar SRC Clones

2019 ◽  
Vol 40 (2) ◽  
pp. 231-238
Author(s):  
Dinko Vusić ◽  
Davorin Kajba ◽  
Ivan Andrić ◽  
Ivan Gavran ◽  
Tin Tomić ◽  
...  
Keyword(s):  
Moisture Content ◽  
Power Plants ◽  
Biomass Yield ◽  
Initial Moisture Content ◽  
Early Spring ◽  
Ash Content ◽  
Fuel Properties ◽  
Wood Chips ◽  
Sample Tree ◽  
Productivity Potential

The goal of the research was to determine the biomass yield and fuel properties of ten different poplar clones. The research was conducted in an experimental plot established in Forest Administration Osijek, Forest Office Darda, in the spring of 2014. The layout of the plot consisted of three repetitions per clone with 40 plants per repetition in spacing 3x1 m. Based on the DBH distribution, in the early spring of 2018, one sample tree of an average DBH per repetition was selected, thus forming a sample of 30 trees. Average survival rate of the investigated trees after four vegetation periods was 74.54 ±13.85% ranging from 52.08% (Koreana) to 91.67% (SV885 and SV490). Average DBH of the sample trees was 8.2 ±1.9 cm, height 9.3 ±1.8 m and root collar diameter 10.7 ±1.9 cm. Moisture content in fresh state (just after the felling) ranged from 51.6% (Hybride 275) to 55.9% (SV885). Bark content averaged 18.4%, from 15.4% (Baldo) to 21.1% (V 609). Average nominal density of the sampled trees amounted to 383.5 ±35.9 kg/m3. Bark ash content was on average ten times higher (6.44 ±0.65%) than wood ash content (0.64 ±0.07%) resulting in average ash content of 1.7 ±0.1% (taking the bark content into account). The clone SV490 showed the highest biomass yield with 15.8 t/ha/year, while the lowest biomass yield was recorded for the clone Hybride 275 with 2.8 t/ha/year. High inter-clonal productivity variation stresses the importance of selection work to find the most appropriate clones with the highest productivity potential for the given area where the poplar SRC plantations are to be established. Due to high initial moisture content, if direct chipping harvesting systems are preferred, wood chips could be efficiently used in CHP (Combined Heat and Power) plants that operate on the principle of biomass gasification (where a gasifier is coupled to a gas engine to produce electric power and heat). In several CHP gasification plants operating in Croatia, wood chips with high initial moisture content (from traditional poplar plantations) are used as a feedstock that has to be pre-dried using the surplus heat. In this respect SRC poplar wood chips could make an ideal feedstock supplement.

Nutrient economy through land configuration and residue management in a greengram (Phaseolus radiatus L.)-wheat (Triticum aestivum L.) cropping sequence with limited water supplies

2005 ◽  
Vol 52 (4) ◽  
pp. 369-379
Author(s):  
B. G. Shivakumar ◽  
B. N. Mishra ◽  
R. C. Gautam
Keyword(s):  
Grain Yield ◽  
Agricultural Research ◽  
Indian Agricultural Research Institute ◽  
Residual Effect ◽  
Residue Management ◽  
Phosphorus Fertilization ◽  
Significant Interaction Effect ◽  
Preceding Crop ◽  
Cropping Sequence ◽  
Phosphorus Application

A field experiment on a greengram-wheat cropping sequence was carried out under limited water supply conditions in 1997-98 and 1998-99 at the farm of the Indian Agricultural Research Institute, New Delhi. The greengram was sown either on flat beds or on broad beds 2 m in width, divided by furrows, with 0, 30 and 60 kg P2O5/ha. After the harvest of greengram pods, wheat was grown in the same plots, either with the greengram stover removed or with the stover incorporated along with 0, 40, 80 and 120 kg N/ha applied to wheat. The grain yield of greengram was higher when sown on broad beds with furrows compared to flat bed sowing, and the application of 30 or 60 kg P2O5/ha resulted in significantly higher grain yields compared to no phosphorus application. The combination of broad bed and furrows with phosphorus fertilization was found to be ideal for achieving higher productivity in greengram. The land configuration treatments had no impact on the productivity of wheat. The application of phosphorus to the preceding crop had a significant residual effect on the grain yield of wheat. The incorporation of greengram stover also significantly increased the grain yield of wheat. The increasing levels of N increased the grain yield of wheat significantly up to 80 kg/ha. The combination of greengram stover incorporation and 80 kg N/ha applied to wheat significantly increased the grain yield. Further, there was a significant interaction effect between the phosphorus applied to the preceding crop and N levels given to wheat on the grain yield of wheat.

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