Farmers in semi-arid regions are experimenting with cover crop mixtures as partial summer fallow replacement, the goal of increasing soil biological activity. We compared extracellular enzyme activity, microbial biomass, potentially mineralizable nitrogen (PMN) and mycorrhizal colonization levels after growing crops comprised one or four functional groups. asked whether can alter those processe...

Agriculture is the single biggest user of land and water in Morocco; however its performances are still low due to high rainfall variation and rates of soil productivity depletion. Increasing concerns about soil and environment quality degradation have raised the need to review existing tillage management systems and develop new systems for seed-bed preparation. Consequently, No-tillage is foun...

Canola sensitivity to delayed sowing date should be managed in such a way that the observance of crop rotation with less reduced in seed yield. The research was conducted to evaluate the yield variation of Hyola401 hybrid, affected by sowing date and nitrogen fertilizer treatments. In this study, the effect of planting date and different levels of nitrogen fertilizers on effective characteristi...

Abstract Earwigs have been observed as an irregular pest of increasing concern to farmers growing canola and other winter grain crops in Australia over the past decade. In this study, we tested how abiotic biotic factors influence feeding behaviour earwigs. Studies were conducted with two Australian native species, Labidura truncata Nala lividipes , introduced European earwig, Forficula auricul...

The effects of previous crops (soybean (Glycine max (L.) Merr.) and winter oilseed rape (Brassica napus L. ssp. oleifera Metzg)), as well conventional tillage (CT) no-tillage (NT), on yield some quality parameters wheat (Triticum aestivum L.) grain were evaluated based a four-year field experiment. Wheat was grown in four-field crop rotation: Soybean—winter wheat—winter rape—winter wheat. study...

in order to evaluate the competitive ability (ca) of canola cultivars against wild mustard, two experiments were conducted at the gorgan institute in iran during the 2005-2007 cropping seasons. the experimental factors were canola cultivars (1st year: zarfam, option500, hayola330, hayola401, talayh, rgs003 and sarigol; 2nd year: zarfam, hayola330, rgs003 and option500) and weed density (1st yea...

the objective of these investigation were use of berseem clover (trifolium alexandrinum ) in double cropping system (after autumns crop) to improve forage production in shahrekord region. the experiments were carried out in the preliminary, research and farmer field condition in 2005, 2006-7 and 2013 respectively. in 2005 the results showed that there is possibility of double cropping of bersee...

Zentner et al., 2001). Johnson (1982) found that income variability was reduced under summer fallow and that Suitability of alternative crops in the northern Great Plains remains summer fallow maximized return to land at low yields, a question because of water limitations. Objectives were to compare water use of an oat (Avena sativa L.)–pea (Pisum sativum L.) mix low wheat prices, and high N pr...