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...

The purpose of this factorial field experiment was to investigate the influence farming systems (FS) and intercropping patterns (IPs) on physiological aspects safflower bitter vetch. Treatments included high low-input various IPs that exchanged vetch with row ratios 2:2, 2:3, 2:4, 2:5, while sole cropping (SS) (SB) were used as control. highest grain yield both plants obtained from input system...

I have measured acetylene diffusion through plant tissues including nodules from several species of legume-vetch, peas, soybeans, and Sesbania rostrata. The observed half-time for reequilibration of internal and external concentration is less than 1 minute for typical nodules. Inward diffusion of acetylene in air is rapid relative to the use of acetylene by nitrogenase so that diffusion of acet...