The C factor for arable land has been refined using statistical data on the mean crop rotation and the acreage of particular agricultural crops in the districts of Slovakia.
Using phenological and genotypic data gathered on the crop and on a sample of the weedy population and its offspring, we estimated an average hybridization rate of approximately 10%.
These networks provided the organisations with data on crops, international crop status, market timing, prices, market conditions (regional, national, international), weather, technical and training information, and information about the various organizations that support their work.
This full-text report, issued four times yearly, presents data on the U.S. pig crop for 16 major states and the U.S., including inventory number by class, weight group, farrowings, and farrowing intentions.
NASA's early weather satellites were followed, in the seventies and eighties, by a slew of more advanced instruments, which supplied data on the ozone layer, crops and vegetation, and even insect infestations.
Data on the cultivation of crops in Europe are available at the Statistical Office of the European Communities [22], which offers data on various topics, among of which is also agriculture.
But advocates and reporters can't use the aggregate data on crop insurance subsidies the way they use the direct payment data -- for instance, to track down beneficiaries who live in Manhattan and are not actually farmers or to point out exactly how much money is flowing to individual members of Congress.
Crop residue flows and the fractions used as feed were derived from the databases for 2000 using data on harvest indices (the ratio of grain to total plant biomass) and the usage of harvest residues as well as data on the fraction of available crop residues used for feed [38,49,56].
It presents data on the year's lamb crop and wool production, including the number of breeding ewes per 1,000 head by state.
For modelling the pollen transport, phenological data on the flowering of GM crops should be considered, too.
