The inclusion of undersown cover crops in crop rotations and the use biopesticides are essential for long-term sustainability agroecosystem organic farming. We hypothesized that (crimson (incarnate) clover (Trifolium incarnatum Broth.), hairy (winter) vetch (Vicia villosa Roth.), perennial ryegrass (Lolium perenne L.), winter rye (Secale cereale L.)) likely to have a positive impact on soil agr...

In Japan, pea aphids Acyrthosiphon pisum mainly feed on vetch and clover, and many aphid clones produce more progeny on vetch than on clover. In this context, particular genotypes of the facultative symbiont Regiella insecticola enhance reproduction of infected pea aphids specifically on clover, thereby broadening the suitable food plant range of the insect. A species that is sympatric to A. pi...

The common vetch (Vicia sativa subsp. sativa), a self-pollinating and diploid species, is one of the most important annual legumes in the world due to its short growth period, high nutritional value, and multiple usages as hay, grain, silage, and green manure. The available simple sequence repeat (SSR) markers for common vetch, however, are insufficient to meet the developing demand for genetic...

Abstract. Subsoil carbon (C) stocks are a prime target for efforts to increase soil C storage climate change mitigation. However, subsoil dynamics not well understood, especially in soils under long-term intensive agricultural management. We compared and organic matter (SOM) composition tomato–corn rotations after 25 years of differing nutrient management the California Central Valley: CONV (mi...