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 ...

More than 50% of agricultural land is threatened by water erosion in the Czech Republic. With respect to soil erosion, maize (Zea mays L.) belongs most problematic crops; one possibilities increase protection against intercropping. In this study, we attempted find out effects individual intercrops and their mixtures (sown 4–6 weeks after sowing maize) or a mixed culture (maize plus lupine) on l...

Ecological intensification is crucial for arable organic farmers, in order to partly close the yield gap conventional yields. One strategy this improved management of cover crops, increase availability both nitrogen (N), phosphorus (P) and sulfur (S) subsequent main crop. However, potential crops take up release nutrients has primarily been determined aboveground biomass mostly N. There have fe...