Authors:N. Barros, S. Feijóo, J. Simoni, C. Airoldi, B. Ramajo, A. Espina and J. García
The control on the CO2 coming from soil handling, makes necessary the introduction of new methodologies that inform about the capacity of the soil
as a carbon sink and about the carbon decay. It can be performed through the microbial growth yield efficiency concept by
calorimetry and enthalpy balances. Here it is examined the sensitivity of these indicators to two metal layering phosphates,
AZP [(NH)4Zn2(PO)4(HPO)4] and AIP [(NH)4Fe(PO)4H2O] to assess about their soil impact. Both compounds caused metabolic changes on soil microbial biomass when compared to appropriated
references indicating that the proposed methodology is sensitive to different inorganic sources of microbial growth.
Authors:Péter Bajcsi, Tamás Bozsó, Róbert Bozsó, Gábor Molnár, Viktor Tábor, Imre Czinkota, Tivadar M. Tóth, Balázs Kovács, Félix Schubert, Gábor Bozsó and János Szanyi
Our research team has developed a new well completion and rework technology involving lasers. The system is made up of a high-power laser generator and a custom-designed directional laser drilling head. The laser head is attached to a coiled tubing unit to maximize production and to carry out special downhole tasks. In this phase of the development effort, laser technology is particularly well suited to cost-efficiently drill short laterals from existing wells in a single work phase, drilling through the casing and cement as well as the formation. The technology, which is an extended perforation solution, enables a more intensive interaction with the downhole environment and supports cutting edge subsurface engineering scenarios such as barite removal. Laser-induced heat treatment appears to be a suitable alternative to effectively remove the almost immovable deposits and scales from thermal water-well pipes.
Authors:J. Jakopič, N. Fajt, F. Štampar and R. Veberič
To study the effect of the crop load on fruit quality of the cultivar ‘Fuji’ apple, in a two-year experiment, fruitlets were hand-thinned to six, eight, ten and in the second year, to twelve fruit per cm2 of the trunk cross-sectional area (TCSA). With increasing crop load, yield and the proportion of small fruits increased, but mean fruit weight decreased. However, the increase of TCSA and the number of flower clusters at return bloom were the lowest in high cropping trees. The highest percentage of total soluble solids was measured in the lightest cropping trees, which could be in correlation with the highest content levels of the sum of the analysed sugars, sucrose, sorbitol, malic and citric acids in the treatments with lowest crop load in the second year. The most intensive red colour of the fruit and the highest concentration of cyanidin-3-galactoside was observed in the treatment with eight fruit per cm2 TCSA. Different cropping of trees had no influence on phenolic compounds, such as the concentrations of catechin, epicatechin and chlorogenic acid. On the basis of yield efficiency, return bloom and detected fruit quality parameters cv. ‘Fuji’ apple has high yield potential.
. , Wang , X. , Zhou , W. , He , P. , Johnston , A.M. , Christie , P.
2014 . Longterm effects of potassium fertilization on yield, efficiency, and soil fertility status in a rain-fed maize system in northeast China . Field Crops Res