Abstract Using a fossilized birth–death model, new phylogeny of the superfamily Evanioidea (including ensign wasps, nightshade wasps and hatchet wasps) is proposed, with estimates divergence times for its constitutive families corroborating monophyly Evanioidea. Additionally, our Bayesian analyses demonstrate †Anomopterellidae, †Othniodellithidae, †Andreneliidae, Aulacidae, Gasteruptiida Evanii...

Introduction Organic production rose to 2.3 million acres in the U.S. in 2001 (USDA-ERS, 2002). Much of the increase has been associated with the implementation of consistent federal standards for products marketed as “organic” in October 2002 (USDA/AMS, 2002). In order to meet certified organic requirements in the state of Iowa (IDALS, 2000), a soilbuilding cover crop is required for at least ...

Here, we present research to overcome a current limitation of temperate grassland systems provide home-grown, early season protein for lactating ewes—a period high demand in these systems. Traditionally used as forage crop, there is renewed interest common vetch (Vicia sativa) due its ability grow during low temperatures over-winter compared other legumes. We hypothesised that would support the...

there are many methods for weed management one of them is putting allelopathic and cover crop in weed management programs. in order to study the effect of sowing time (delayed sowing, synchronic sowing) and wheat cultivars (shiraz, roshan, tabasi, niknejad) on allelopathic interaction of wheat and weed species (secale cereale l., avena ludoviciana l.: monocotyledon, convolvulus arvensis l. and ...

Chinese milk vetch (Astragalus sinicus L.) is an important leguminous green manure that frequently suffers from seasonal drought. To improve its drought tolerance, the effects of rhizobia inoculation on tolerance and underlying physiological mechanism were investigated. Drought in combination with nitrogen assimilation, free amino acids, polyamines was investigated active nodules (AN), inactive...

The pro-health and pro-environmental assets of organic farming are a reason why this system is now promoted in agriculture. objective the research was to determine effect conventional crop production (potato, oat, spring vetch) on yield, water erosion, losses NPK nutrients, LAI, infiltration, fresh mass earthworms. From 2019 2021, two-factor field experiment carried out at Mountain Experimental...