Results 111 to 120 of about 123,874 (333)

Leaf and must nitrogen content two complementary indicators of grapevine nitrogen status

open access: yesOENO One, 2003
Grapevine nitrogen status was assessed by nitrogen content in leaf blade and petiole at veraison, in must at harvest and in pruned wood in December.
Jean-Pierre Gaudillère   +4 more
doaj   +1 more source

Bias‐Free Solar Upcycling of Nitrate and Glycerol with Highly Efficient and Durable Organic Semiconductor‐Based Photoelectrodes

open access: yesAdvanced Materials, EarlyView.
A bias‐free photoelectrochemical (PEC) upcycling system integrating bi‐functional nickel‐iron‐phosphorus (Ni‐Fe‐P) catalysts with organic semiconductor (OS)‐based dual photoelectrodes is reported. The system enables simultaneous solar‐driven conversion of nitrate to ammonia and glycerol to formic acid with high efficiency and stability.
Yejoon Kim   +11 more
wiley   +1 more source

Effect of Sulphur Fertilisation on Lycopene Content and Colour of Tomato Fruits

open access: yesCzech Journal of Food Sciences, 2009
The effects of different sulphur (S) fertilisers (ammonium, sodium, potassium and calcium sulphates) in combination with nitrogen (N) on plant growth, yield and quality of fruits were investigated in two dwarf cultivars Proton and Šejk. Single N, applied
E. Zelená   +6 more
doaj   +1 more source

What will long-term experiments deliver? Key results of 12 experiments on different continents. [PDF]

open access: yes, 2006
Twelve long-term experiments have been used to describe the main management effects of organic farming systems. The experiments were mostly used to compare various types of organic and conventional cropping systems, or to study fertilisation effects ...
Oltmanns, Meike, Raupp, Joachim
core  

How to enhance crop production and nitrogen fluxes? A result-oriented scheme to evaluate best agri-environmental measures in Veneto Region, Italy [PDF]

open access: yes, 2018
The cost-effectiveness of adopting agri-environmental measures (AEMs) in Europe, which combine agricultural productions with reduced N losses, is debated due to poorly targeted site-specific funding that is allocated regardless of local variability.
Berti, A.   +4 more
core   +1 more source

A Roadmap for Plasma‐Enabled Electrocatalysis in Urea Production

open access: yesAdvanced Materials, EarlyView.
A modular plasma—electrochemical platform enables fully electrified urea synthesis from air and CO2 under ambient conditions. This Review integrates plasma oxidation, C─N coupling electrolysis, mechanistic insights, and techno‐economic metrics into a roadmap for scalable, distributed, and renewable fertilizer production.
Jingwen Huang   +6 more
wiley   +1 more source

Analysis of the Physico-Chemical Properties of Bean Seeds after Three Years of Digestate Use

open access: yesAgriculture
Taking into consideration its physico-chemical properties, digestate should be used primarily as a fertiliser. The possible ways of using digestate as a fertiliser in agriculture were identified, and digestate collected from an agricultural biogas plant ...
Milan Koszel   +7 more
doaj   +1 more source

Biological and chemical amelioration effects on the localities degraded by bulldozer site preparation in the Ore Mts. - Czech Republic

open access: yesJournal of Forest Science, 2003
Biological and chemical (fertilising, liming) amelioration are among the principal tools used to restore degraded sites. These techniques were also used on the Ore Mts. plateau on plots prepared by bulldozing.
V.V. Podrázský   +2 more
doaj   +1 more source

Self-fertilisation in Mollusca [PDF]

open access: yesNature, 1922
As the question of self-fertilisation in the more highly organised invertebrates is of considerable importance from the genetic point of view, I would like to direct the attention of readers of NATURE to a publication (Acta Soc. pro Fauna et Flora Fennica, vol. 40, No. 2, 1915), a copy of which I have just received from the author, Dr. A. Luther.
openaire   +2 more sources

Impact of cropping system on mycorrhiza [PDF]

open access: yes, 1999
The impact of cropping system on field communities of mycorrhizal fungi was studied utilising a long-term experiment on a loamy soil. Two contrasting crop rotations each with two fertilisation regimes were compared. The conventional crop rotation (barley-
Kahiluoto, H., Vestberg, M.
core  

Home - About - Disclaimer - Privacy