نتایج جستجو برای: 15 and 30 t ha
تعداد نتایج: 17092568 فیلتر نتایج به سال:
چکیده در بررسی شناسایی فون کنه های خانواده phytoseiidae در سال های 1387 و 1388 در استان لرستان تعداد 17 گونه جمع آوری و شناسایی شدند. گونه های جمع آوری شده عبارت بودند از: kampimodromus aberrans (oudemans)*، euseius scutalis (athias-henriot)*، e. finlandicus (oudemans)*، neoseiulus marginatus (wainstein)*، n. bicaudus (wainstein)، n. barkeri hughes*، n. sugonjaevi (wainstein and abbasova)، n. ...
Hydroxyapatite (HA) has been used in orthopedic, dental, and maxillofacial surgery as a bone substitute. The aim of this investigation was to study the effect of surface topography produced by the presence of microporosity on cell response, evaluating: cell attachment, cell morphology, cell proliferation, total protein content, and alkaline phosphatase (ALP) activity. HA discs with different pe...
Field experiments were performed to identify an effective fertilizing scheme for direct-seeding rice (DSR) fields in the Taihu Lake Basin in east China. Based on local traditions, 3 typical fertilizing schemes (FS-1, FS-2, and FS3) were evaluated, in consideration of ensuring a certain rice yield and relatively low nitrogen (N) loss. The base, seedling, tillering, jointing, and panicle fertiliz...
Some effects of l&m endophyte (Acremonium lolioe) on sheep production were evaluated using pure swards of h igh (SO%>) and low (< 5%) endophyte Nui and Ar ik i ryegrass. The proportion of infected t i l lers in high endophyte treatments increased by 19% in 15 months. Ryegrass staggers occurred on both high endophyte ryegrasses being sl ight ly worse on Nui . The peak ryegrass staggers outbreak ...
This study was conducted to determine the optimum planting date and density for a selected population of Behbahan onion for two years. Experiment was conducted as a split factorial based on RCBD design with four replications. Main plots consisted of four planting dates from 6 September to 23 October with 15 day intervals. Sub plots consisted of combinations of three row spaces (20, 30 and 40 cm...
The studies were carried out in order to identify the responsiveness of five varieties spring wheat variants with applying mineral fertilizers and study specific features formation elements yield structure. work was 2019-2021 on dark gray forest heavy loamy soil Ryazan region. experiment scheme was: N0P0K0 (control); N 64 P K ; + 30 15 . Over years research, varied from 2.45 5.57 t/ha, dependin...
تغییر اقلیم و افزایش گرمای زمین یکی از مهم ترین چالش ها در توسعه پایدار محسوب می شود، که ناشی از افزایش غلظت گازهای گلخانه ایی در اتمسفر می باشند. دی اکسید کربن قسمت عمده گازهای گلخانه ایی را تشکیل می دهد. تغییر کاربری اراضی و تخریب خاک جریانات عمده ایی هستند که سبب رهاسازی co2 در اتمسفر می شوند. جهت کاهش دی اکسید کربن و ایجاد تعادل در گازهای گلخانه-ایی کربن اتمسفر بایستی جذب و در فرم های مختلف...
in order to study the effects of nitrogen and drought stress on yield, yield components and seed quality of corn (hybrid single cross 704) a field experiment was conducted at agricultural research station in islamabad gharb in 2009. experiment design was split plots based on randomized complete block design with three replications. main plots included full irrigation requirement, 80 percent and...
A field experiment was conducted to assess the optimum inter- and intra-row spacing on growth, yield and yield component of Roselle (Hibiscus sabdariffa L.) in 2014/15 cropping season at Wondo Genet Agricultural Research Center experimental site (at Wondo Genet station). Two inter-row spacing (60 and 90 cm) and three intra-row spacing (30, 60 and 90 cm) were evaluated using two varieties, WG-Hi...
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