After the embargo period via non-commercial hosting platforms such as their institutional repository  via commercial sites with which Elsevier has an agreement In all cases accepted manuscripts should: link to the formal publication via its DOI  bear a CC-BY-NC-ND licensethis is easy to do  if aggregated with other manuscripts, for example in a repository or other site, be shared in alignment with our hosting policy  not be added to or enhanced in any way to appear more like, or to substitute for, the published journal articleA meta-analysis and review of plant-growth response to humic substances: practical implications for agriculture.

No abstract

High conversion and selectivity can be obtained for the cross-metathesis of 2-butene with triglycerides and unsaturated fatty acid esters derived from natural oils. This can be achieved with remarkably high productive catalyst turnovers using second-generation ruthenium-based olefin metathesis catalysts.

ABSTRACTviminalis and increased the concentration of P, K and S in leaves of A. mearnsii when grown in the low saline sodic soil. The results confirm that there is potential for biochar to assist in reforestation of saline sodic soils.

The reactions of a strain of marine alga Chlorococcum sp. and of a polystrain containing a mixture of marine algae with CO/H 2 O have been studied. The yields and chemical composition of the products obtained from the reactions with CO/ H 2 O were compared with those using N 2 and H 2 . The effects of selected potential catalysts (Na 2 CO 3 , NaAlO 2 , and Fe) and the water-to-algae ratio on the product yields and composition when the reactions were carried out under CO/H 2 O are also described. Both algae gave high product yields at 285 °C, but the quality of the product as a liquid fuel increased at higher temperature. The reactions with CO/H 2 O tended to give higher oil yields and higher-quality products (lower nitrogen, higher atomic H/C ratio) than those using H 2 or N 2 and, in addition, reduced the amount of dewatering of the algae that is required.