Soybean (Glycine max L. Merril.) is an annual plant of Asian origin, adapted to temperate climates. This plant is a member of the family Fabaceae, subfamily Papilionoideae, tribe Phaseoleae, genus Glycine and subgenus Soja (Hymowitz, 2004). One of the most important agronomic characteristics of soybean is that it can take nitrogen from the air and fix it to be used as nutrient by the plant. The...

in order to study the effects of nitrogen fertilizer on yield and growth of soybean (glycine max l.) an experiment as factorial in rcb design with three replications was conducted during 2006 and 2007 years at north khorasan. factors were cultivar (hobbit, l.w.k., and williams), and nitrogen fertilizer (0, 50, 100, and 150 kg n/ha from urea source). results indicated that cultivar and n fertili...

This study aimed to determine the influence of weather conditions (air temperature, precipitation and insolation) on quantity nitrogen taken up by soybean plants whose cultivation included an application two biostimulants: Asahi Improver, which have been approved for sale. An isotopic dilution method was used involved mineral fertilisers enriched with isotope 15N (5%) detect fixed from atmosphe...

Three experiments were conducted to investigate the effects of polyurethane coated urea on in vitro ruminal fermentation, ammonia release dynamics and lactating performance of Holstein dairy cows fed a steam-flaked corn-based diet. In Exp. 1, a dual-flow continuous culture was run to investigate the effect of polyurethane coated urea on nutrient digestibility, rumen fermentation parameters and ...

the aim followed in this study was to investigate the effects of soybean oil (high in c18:2 n-6, an omega-6 fatty acid) and fish oil (high in epa 20:5 n-3 and dha 22:6 n-3, omega-3 fatty acids) on meat quality and on the fatty acid profiles in goat kids. twenty-four male kids were allocated through stratified randomization and on the basis of body weight (19.43±1.2 kg) into three equal groups. ...

this experiment was conducted to evaluate the effect of different lipid sources and organic zinc supplementation on performance, egg bacterial activity and ovary morphology of laying hens for 10 weeks. with 288 sixty weeks old birds by employing a completely randomized design with factorial arrangement of 3×4 with 12 treatments, 4 replicates and 6 hens each. the factors of interest were 4% lipi...

Bradyrhizobium diazoefficiens is a nitrogen-fixing endosymbiont, which can grow inside root-nodule cells of the agriculturally important soybean and other host plants. Our previous studies described B. diazoefficiens host-specific global expression changes occurring during legume infection at the transcript and protein level. In order to further characterize nodule metabolism, we here determine...

A novel source of biological nitrogen produced by multi-strain fermentation was developed for erythromycin production. The nitrogen composition of corn steep liquor, biological nitrogen and soybean flour was optimized by using Response surface methodology (RSM) firstly. A Box-Behnken design was used to estimate the optimum nitrogen composition for the production of erythromycin as follows: corn...

As a warm climate species, soybean is highly sensitive to chilling temperatures. Exposure to chilling temperatures causes a significant reduction in the nitrogen fixation rate in soybean plants and subsequent yield loss. However, the molecular basis for the sensitivity of soybean to chilling is poorly understood. In this study, we identified cold-responsive miRNAs in nitrogen-fixing nodules of ...