منابع مشابه
alternative summer fallow cropping rotation in cold regions of iran
in order to adapt the results of previous researches on annual forage legumes in zanjan province to cold regions condition of iran, yield and quality characters of two outstanding species namely grass pea (lathyrus sativus l.) and common vetch (vicia sativa l.) were evaluated in summer fallow cultivation condition for one year in 28 locations over 11 provinces of the country. in the variance an...
متن کاملEight years of annual no-till cropping in Washington’s winter wheat-summer fallow region
The tillage-based winter wheat (Triticum aestivum L.)-summer fallow (WW-SF) cropping system has dominated dryland farming in the Pacific Northwest USA for 125 years. We conducted a large-scale multidisciplinary 8-year study of annual (i.e., no summer fallow) no-till cropping systems as an alternative to WW-SF. Soft white and hard white classes of winter and spring wheat, spring barley (Hordeum ...
متن کاملTwo Configurations of the Western Arctic Shelfbreak Current in Summer
Data from a closely spaced array of moorings situated across the Beaufort Sea shelfbreak at 1528W are used to study the Western Arctic Shelfbreak Current, with emphasis on its configuration during the summer season. Two dynamically distinct states of the current are revealed in the absence of wind, with each lasting approximately one month. The first is a surface-intensified shelfbreak jet tran...
متن کاملCultivated hay and fallow/idle cropland confound analysis of grassland conversion in the Western Corn Belt.
The conclusions of a recent study by Wright and Wimberly (1) suggesting that corn/ soy cultivation in the Western Corn Belt (WCB) “threatens grasslands” are questionable because of the methods and data used. The study (1) compared National Agricultural Statistics Service (NASS) Cropland Data Layer (CDL) for 2006 with CDL for 2011 (2) and found 530,000 ha of net “grassland conversion” to corn/so...
متن کاملA Breeding Program for Farmed Fallow Deer
There is increasing archaeological evidence that deer were being systematically cropped or “ranched” much earlier than has been previously supposed. In the Mediterranean region, fallow deer (Dama danm dama), made a sudden appearance on several islands at the same time as sheep, goats and pigs, and subsequently their bones make up 70 percent of those found at Neolithic sites between 6000 and 200...
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ژورنال
عنوان ژورنال: Canadian Journal of Plant Science
سال: 1975
ISSN: 0008-4220,1918-1833
DOI: 10.4141/cjps75-073