Cover crops are promoted to increase soil organic carbon (SOC) storage and improve biological health in agricultural systems. However, cover crop effects on microbial communities – key regulators of SOC nutrients functioning not clear semiarid environments. This study investigated the response community structure enzyme activities integration under limited-irrigation winter wheat (Triticum aest...

Little is known about the long-term contribution of cover crops to weed management in tillage- and herbicide-based systems. Do mainly filter species capable setting seeds during fallow period? Can crop biomass productivity explain differences suppression among species? Does reduced seedbank density translate into lower higher productivity? Soil samples (0–15 cm) were collected 2018 after termin...

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 ...

Cover crops can improve soil health by maintaining organic carbon (SOC) and nitrogen (N) contents, yet their dynamics in relation to crop yield a semi-arid cropping system are poorly understood. The main objective of this study was evaluate the response diverse winter cover species mixture on SOC N fractions relationship with sorghum (Sorghum bicolor L. Moench) wheat (Triticum aestivum L.)–sorg...

A soluble membrane component of type III pneumococcal polysaccharide-coupled spleen cells (S3-SCSM) induces S3-specific suppressor T cells (Ts) in mice. These Ts can be detected only if mice are pretreated with cyclophosphamide (Cy) or if cells adherent to the lectin Vicia villosa are removed from the spleen cell population prior to transfer. The V. villosa-adherent spleen cells from mice injec...

The temperate and herbaceous genus Vicia L. is a member of the legume tribe Fabeae of the subfamily Papilionoideae. The genus Vicia comprises 166 annual or perennial species distributed mainly in Europe, Asia, and North America, but also extending to the temperate regions of South America and tropical Africa. The use of simple sequence repeat (SSR) markers for Vicia species has not been investi...

The present experiment was conducted to study diet digestibility, feed intake, animal performance and carcass characteristics of growing dairy bulls offered diets based on whole-crop barley, a mixture of whole-crop barley and hairy vetch (Vicia villosa Roth.) or a mixture of whole-crop wheat and hairy vetch relative to moderate digestible grass silage-based diet. The feeding experiment with 24 ...

This work aimed to evaluate the influence of root exudates from cover crops: Raphanus sativus, Avena strigosa and Vicia villosa on germination development Zea mays, Amaranthus spinosus Ipomoea grandifolia. The tests performed were gas chromatography with mass spectrometry, rate, vigor, protrusion dry matter. Aliphatic amino acids (Alanine, Glycine, Isoleucine, Leucine, Proline, Serine, Threonin...

Weeds may be suppressed by winter cover crops and the use of organic herbicides such as vinegar. Black oat (Avena strigosa) and hairy vetch (Vicia villosa) winter cover crops were planted for 2 years as part of a sustainable production system for cotton in the Lower Rio Grande Valley of Texas, and were till-killed each spring prior to cotton planting. Palmer amaranth (Amaranthus palmeri), commo...

New discoveries of legumes in the lower Galilee at the prehistoric site of Ahihud in Israel shed light on early farming systems in the southern Levant. Radiocarbon dating of twelve legumes from pits and floors indicate that the farming of legumes was practiced in southern Levant as early as 10.240-10.200 (1σ) ago. The legumes were collected from pits and other domestic contexts dated to the Ear...