جستجوی مقالات مرتبط با کلیدواژه « herbicide » در نشریات گروه « باغبانی »

In order to investigate of the effects of topic and granstar herbicides with codacide adjuvant to weeds control of wheat fields an experiment was carried outwith 13 treatment and 4 replication  in 2012-2013, in Karaj. Experiment factor were granstar herbicide 3 dose (14,17,20 g/ha), granstar herbicide (14,17,20 g/ha+0.25% V/V Codacide) and topic herbicide(0.6,0.8,1 lit/ha) and topic herbicide (0.6,0.8, 1 lit/ ha+ 0.25% V/V codacide). These treatments were used in tillering time. The result of this experiment indicated that Granstar 17 gr/ha+ 0.25% herbicide had the best of effect on weed control.

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.

Canola (Brassica napus. L) due to particular agronomic characteristics، has a special place among oilseed crops and more attention has been in recent years. One of the problems with this product، it has weeds in canola crops. Treatments included a performance of Trifluralin، Trifluralin + Butisan (Metazachlor + Quinmerac) and Trifluralin+ Haloxyfob in the canola crop. Experimental was carried out using design in randomized complete block design with three replications، the field experiment was conducted at the experimental station of the Selseleh town of Lorestan province in (2010-2011). Analysis of variance showed that Percent of narrow leaf weed control on the herbicide treatment of Trifluralin and Trifluralin + Butisan was 70 and 76 percent، respectively. Herbicide treatmet of Trifluralin + Haloxyfob had significant impact on the narrow leaf weed control and more than 93% of the narrow leaf weeds can be controlled.