منابع مشابه
The emergence of use of biological herbicides
Serious attention to hazardous chemical pesticides began with publication of the book “Silent Spring” by Rachel Carson in 1962. Scientists believe that agriculture had the greatest impact on the environment. The most reliable evidence comes from application of million tons of chemical fertilizers and pesticides with short or long adverse effects on ecosystem. Therefore, it is essential to imple...
متن کاملeffect of listening strategy training on iranian efl learners listening comprehension and use of strategies
this study aimed to investigate the effects of listening strategy training on iranian efl learners listening comprehension and use of such strategies. this work, employing an experimental methodology, was conducted among 60 adult efl learners from a language institute in isfahan, iran, as participants. the participants, who were selected based on the results of a placement test, were assigned t...
15 صفحه اولthe impact of generative learning strategy use on efl learners’ reading achievement and critical thinking
این پژوهش کوشیده است تأثیر به کارگیری راهبردهای زایا را بر پیشرفت و بسندگی در خواندن و درک مطلب و نیز بر تفکر انتقادی زبان آموزان انگلیسی را بررسی کند. در این پژوهش تعداد 46 دانش آموز دختر در مقطع متوسطه اول به صورت تصادفی انتخاب وبه دو گروه تجربی و شاهد با تعداد دانش آموزان مساوی در هر گروه تقسیم شدند. به هر دو گروه سه داستان کوتاه به عنوان موضوع خواندن برای کلاس داده شد. به گروه تجربی درابتدا...
The Use of Herbicides in Hardwood Forestry
Herbicides can play an important role in hardwood management by providing foresters and landowners with a means to eliminate undesirable stand components. Although herbicide technology for hardwood management still needs much development, some methods are available and MU be used to enhance the value of the stand. With an emphasis on safety, de&ailed information about the benefits and methods o...
متن کاملWhat ' s the Lowdown on Turfgrass Leaves ?
s, ASA, CSSA, SSSA Annual Meeting, November 10-14, Indianapolis. Danneberger, T.K. 1993. Turfgrass Ecology and Management. G.I.E. Inc., Publishers. Hull, R.J.. 2000. "Understanding the turfgrass crown.' TurfGrass Trends 9(5): 1-9.Hull, R.J. 2000a. "Understanding turfgrass roots — Part 1." TurfGrass Trends 9(10): 1-6. Hull, R.J. 2000b. "Understanding turfgrass roots — Part 2." TurfGrass Tren...
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ژورنال
عنوان ژورنال: Planta Daninha
سال: 2013
ISSN: 0100-8358
DOI: 10.1590/s0100-83582013000200024