Floristic composition of weeds in different winter and summer covers
نویسندگان
چکیده
منابع مشابه
ecological weed management by cover cropping: effect on winter weeds and summer weeds establishment in potato
now a day winter cover crops planting has been attended to reduce herbicide application. an experiment was carried out at the research farm of agriculture faculty, bu- ali sina, university, in 2009. the experiment was a randomized complete block design with three replications. the trial included of five treatments consists of no cover crop, rye, winter oilseed rape, barley and triticale. the re...
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the aim of the present study was to determine the in?uence of presence or absence of corpus luteum (cl) on hormonal and metabolites composition of follicular ?uid (ff) harvested from different sized follicles and its relationship with blood serum concentrations in sanjabi ewes. ovaries and blood samples were collected from 60 clinically healthy adult ewes (sanjabi breed) 1–3 years of age in dio...
an investigation of accuracy and complexity across different proficiency levels in written narrative task
abstract this quasi-experimental study was aimed at examining the impact of storyline complexity on the grammatical accuracy and complexity of advanced and intermediate efl learners. a total of 65 advanced and intermediate efl learners were selected from iran language institute (ili). an intact group including 35 intermediate participants and another intact group with 30 advanced participants ...
Pregnancy rates of frozen embryos recovered during winter and summer in Sistani cows
During spring, summer and winter seasons, Sistani donor cows, with normal reproductive status, were superovulated and embryos were recovered non-surgically on day 7. Grade A blastocyst embryos were either transferred fresh (spring) or frozen (summer and winter). Recovered embryos during summer and winter were exposed to glycerol and frozen using conventional method. During spring season, recipi...
متن کاملthe effect of different weeds control and tillage systems on cotton’s weeds manangment in second planting after of winter wheat
to evaluate the effect of combined use of weeds control an different mechanical methods on weeds number and dry weight in cotton , a split plot experiment based on randomized complete block design was conducted at the region of boshruyeh in 2012. experimentals factors were tillage methods as main-plots with three levels, including conventional tillage, no-till system and minimum tillage; and di...
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ژورنال
عنوان ژورنال: Comunicata Scientiae
سال: 2018
ISSN: 2177-5133,2176-9079
DOI: 10.14295/cs.v9i3.1268