نتایج جستجو برای: 391 and 362 ton per hectare

تعداد نتایج: 16842322  

Journal: :International Journal of Enviornment and Climate Change 2023

Field trials were undertaken to investigate the impact of integrated nutrient management on wheat yield and economic aspects during Rabi season 2021-22 2022-23. The experimentation took place at student's instructional farm Chandra Shekhar Azad University Agriculture & Technology in Kanpur. study encompassed 11 treatment combinations, organized a randomized block design with three replicati...

Journal: :محیط زیست طبیعی 0
حمزه میرحاجی کارشناس ارشد مکانیزاسیون دانشگاه فردوسی مشهد مهدی خجسته پور دانشیار گروه ماشین های کشاورزی، دانشگاه فردوسی مشهد محمدحسین عباسپورفرد دانشیار گروه ماشین های کشاورزی، دانشگاه فردوسی مشهد

life cycle study of a product is an accepted method for determining the side effects of its production process on environment during its complete life cycle. in this research, the impacts of global warming, acidification, terrestrial eutrophication and fossil resources depletion per unit yield of wheat (ton) on environment were investigated using life cycle assessment method in marvdasht region...

Objective: In this study investigated effects of different amounts of pelleted manure with urea and micro elements on yield and seed quality of medicinal plants, pumpkin (Cucurbita pepo var. styriaca). Methods: The animal manure and urea as pellet with four levels (150 Kg urea, 50 Kg urea + 3.5 ton animal manure, 100 (Kg) urea+ 1.5 ton animal manure and 150 (Kg) urea+1.5 ton animal man...

Journal: :Science 1967
G M Woodwell C F Wurster P A Isaacson

DDT residues in the soil of an extensive salt marsh on the south shore of Long Island averaged more than 13 pounds per acre (15 kilograms per hectare); the maximum was 32 pounds per acre (36 kilograms per hectare). A systematic sampling of various organisms from the vicinity showed concentrations of DDT increasing with trophic level through more than three orders of magnitude from 0.04 part per...

Journal: :Mechanisms of Development 1999
Lars Grotewold Thomas Theil Ulrich Rüther

dkk-1 has recently been identified as a secreted protein in Xenopus laevis which is sufficient and necessary to cause head induction by antagonizing Wnt signalling (Glinka et al., 1998, Nature 391, 357-362). Consistent with such a role dkk-1 is expressed in the Spemann organizer of the early frog gastrula. Later, expression can be observed in an endomesodermal domain corresponding to the prospe...

Journal: :پژوهش های زراعی ایران 0
رضا حیدری پور مهدی نصیری محلاتی علیرضا کوچکی احمد زارع فیض آبادی

in many crops, incorrect management of nitrogen and water is one of the most important factors in the resources productivity such as water and nitrogen. in order to evaluate the effects of different nitrogen levels (zero, 50, 100 and 150 kg ha-1) and irrigation application rates (100, 75 and 50% of water requirement per species) on corn, sesame and sugar beet, three separate experiments was con...

مومنی زاده, طاهره , نبی پور, علی رضا , نجفی زرینی, حمید , نوروزی, محمد ,

Existance of genotype × environment interaction effects are constraints in evaluation and release of new cultivars. In order to evaluate new high-yielding promising lines and assess their yield stability, an experiment was conducted with ten promising genotypes of rice and two control variety (Shiroudi and Fajr) in two regions of Mazandaran (Deputy of Rice Research Institute in Amol and Ghavdas...

Journal: :international journal of advanced biological and biomedical research 2014
masoomeh azimi kazem ramezani leili alimoradi

objective: this research was carried out as a greenhouse experiment in the form of a completely randomized factorial design (crd) in three-run sequences. the research aimed at investigating the impacts of nicosulfuron (cruz) and rimsulfuran (titus) residues on the growth of wheat in two soil types which differed in their levels of organic compounds and salinity. methods: treatment of the experi...

Journal: :محیط شناسی 0
رضا تمرتاش مربی دانشگاه علوم کشاورزی و منابع طبیعی ساری محمدرضا طاطیان استادیار دانشگاه علوم کشاورزی و منابع طبیعی ساری مائده یوسفیان دانشجوی کارشناسی ارشد مرتع داری، دانشگاه آزاد اسلامی واحد نور

carbon sequestration in soil and plant biomass is the most simple and economic way for co2 decrease that is important in environment improvement. this research was done in miankaleh region of behshahr in mazandaran for comparison of carbon sequestration in different plant types. firstly, plant types were determined and dominant species was identified in each type. number and size of plots was o...

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