نتایج جستجو برای: showed higher yields kw5

تعداد نتایج: 1877870  

Journal: :Agricultural and Resource Economics Review 2021

Abstract This study explores how higher temperatures influence corn yield response to planting density. Using 1990–2010 field trial data from Wisconsin and econometric models with a variety of specifications, we find that reduce the benefits increasing However, these adverse high-temperature effects are smaller for genetically modified varieties, especially those rootworm-resistant traits. Cons...

2003
COLIN THIRTLE LINDIE BEYERS YOUSOUF ISMAEL JENIFER PIESSE

— The results of a two-year survey of smallholders in Makhathini Flats, KwaZulu-Natal show that farmers who adopted Bt cotton in 1999–2000 benefited according to all the measures used. Higher yields and lower chemical costs outweighed higher seed costs, giving higher gross margins. These measures showed negative benefits in 1998–99, which conflicts with continued adoption, but stochastic effici...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده زبانهای خارجی 1389

the aim of the present study was to investigate the frequency and the type of discourse markers used in the argumentative and expository writings of iranian efl learners and the differences between these text features in the two essay genres. the study also aimed at examining the influence of the use of discourse markers on the participants’ writing quality. to this end the discourse markers us...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ایلام 1388

the present study was an attempt to determine the types of motivation and levels of foreign language learning anxiety among efl students studying at azad and state universities in kermanshah and to determine the relationship between these two factors and language proficiency and gender. to this end, the foreign language learning motivation scale, by deci and ryan )1985(, were administered to 12...

الحانی ابوالقاسم امیدی امیرحسن, شهسواری محمدرضا پاسبان اسلام بهمن

Research was conducted to develop and release new improved winter safflower (Carthamus tinctorius L.) cultivar suitable for cold and semi cold areas of Iran.In 1995,1996 and 1997, line L.R.V.51.51 was selected from Uromeieh landraces based on agronomic traits, resistance to diseases and abiotic stresses under field conditions .It was included in yield trials in main Research Stations Karaj...

Journal: :Biomedical and environmental sciences : BES 2007
Jun-Sheng Huo Xiao-Guang Yang Jian-Hua Piao Jun-Quan Gao Hong Miao Bo Yu Cheng-Qian Lu Jun-Shi Chen

OBJECTIVE NaFeEDTA was considered as a promising iron fortificant for controlling iron deficiency anemia. Soy sauce is a suitable food carrier for iron fortification and is a popular condiment in China. Iron absorption rates of NaFeEDTA and FeSO4 were observed and compared in adult female subjects. METHODS The stable isotope tracer method was used in Chinese females consuming a typical Chines...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان - دانشکده زبانهای خارجی 1392

abstract this study investigated the predictability of variables from a motivational framework as well as individuals qualities to predict three non-linguistic outcomes of language learning. gardners socio-educational model with its measures has been used in the current study. individual qualities presented in this study include (1) age, (2) gender, and (3) language learning experience. the...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی 1389

abstract present research considered to examine and compare shahrray 14 years girls and boys narrative concerning with their responsibilities in this research, statistical society are 14 years girls and boys of shahrry . for performing this research. first, 14 years of 50 boys and 50 girls were selected in accidental method and have filled memati hormaled adolescents responsibility questioner...

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