جستجوی مقالات مرتبط با کلیدواژه « bio-fertilizers » در نشریات گروه « باغبانی »

One of the pillars of sustainable agriculture systems, is using biological fertilizers to meet the nutrient requirements of the plant with the aim to eliminate or substantially reduce the use of chemical inputs. Therefore, to investigate effects of mycorrhiza and vermicompost on grain yield and essential oil production of anise, a field experiment was conducted at College of Agriculture, University of Yasouj during 2013-2014 growing season. The experiment was conducted as factorial based on complete randomized block design with three replications.Treatments included vermicompost levels (including control, 5 and 10 ton. ha-1) and mycorrhiza (including control, application of Glumus mosseae, application of Glumus intraradices and integrated application of G. mosseae× G. intraradices). Results showed that use of different nutritional resources had a significant effect on the most studied traits in the medicinal herb Anise. So, the highest plant height (53.46 cm), number of umbels per plant (35.44), grain yield (2968.26 kg.ha-1), essential oil perentage (3.40) and oil yield (101.21 kg.ha-1) were obtained in 10 ton.ha-1 vermicompost. Results also showed that the highest 1000-grain weight (2.86gr) and biological yield (8989.43 kg.ha-1) were obtained in the interaction of 10 ton.ha-1 vermicompost+integrated use of G.mosseae and G. intraradices. Also, the highest harvest index (42.03%) was obtained in 5 ton.ha-1 vermicompost. In general, results showed that the use of bio-fertilizers of mycorrhiza and vermicompost had significant role in increasing yield and quality in Anise.

The following study was achieved to investigating the effects of bio-fertilizers N-fixer bacteria and Methods of controls weeds on quality and quantity characteristics Corn(Zea MaysL. Var K.S.C.406). An experiment was conducted in a Split-plot design as base of randomized complete block design with 3 replications. Treatments main plat included bio-fertilizers on three levels (Azotobacter, Azospirillum and Control). And Sub plat Methods of controls weeds on Five levels (with out weeding, complete weeding, 2 lit.ha herbicides Nicosulfuron, 1.5 lit.ha herbicides Nicosulfuron, 1 lit.ha herbicides Nicosulfuron). In this study, the maximum Number of spikes per Plant (2.38N.o), grain yield (11313.1 a kg.ha-1) ,biological yield (28673.4 Kg ha-1) and Harvest Index(39.5 %) obtained from Azotobacter with complete weeding treatment had no significant difference with Azotobacter with 2 lit.ha herbicides Nicosulfuron, Azospirillum with 2 lit.ha herbicides Nicosulfuron, Azospirillum with complete weeding treatments. The highest1000 grain weight (300.9 gr), plant height (207 Cm), Stem diameter( 4.32 Cm), Ear length( 36.1 Cm) were assigned of Azospirillum with 2 lit.ha herbicides Nicosulfuron treatment had no significant difference with Azotobacter with 2 lit.ha herbicides Nicosulfuron, Azotobacter with complete weeding, Azospirillum with complete weeding treatments. On the other hand the minimum this characteristic allocated to control with with out weeding. The maximum number of weeds per square meter (14.5 N.o), Fresh weight of weeds per square meter (2.146 Kg.m2) and dry matter of weeds per square meter (0.558 kg.m2) were achieved from Azospirillum with with out weeding. And minimum this characteristics allocated to included biofertilizers with 2 lit.ha herbicides Nicosulfuron. This idea necessary to more research.