نتایج جستجو برای: fertilizer and urea formaldehyde slow

تعداد نتایج: 16845333  

Adel Modhej, Anise Jorfi, Mojtaba Alavi Fazel

Bio-fertilizers are naturally occurring soil bacteria that aggressively colonize plant roots and benefit plants by providing growth promotion. This investigation was aimed at determining the effect of Nitroxin bio-fertilizer application on growth, inoculation and yield production of corn hybrids. An experiment was conducted as split plot on the basis of randomized complete block design with fou...

BACKGROUND: Nutrients play a very important role in chemical, biochemical, physiological, metabolic, geochemical, biogeochemical, and enzymatic processes. Innovations for saving water in irrigated agriculture and thereby improving water use efficiency are of paramount importance in water-scarce regions. Conventional deficit irrigation is one approach that can reduce water use w...

2008
Chung-Yun Hse Feng Fu Hui Pan

For the development of a cost-effective melamine-modified urea formaldehyde resin (MUF), the study evaluated the effects of reaction pH and melamine content on resin properties and bond performance of the MUF resin adhesive systems. Eight resins, each with three replicates, were prepared in a factorial experiment that included two formulation variables: two reaction pHs (i.e., 4.5 and 8.0) and ...

Journal: :Chemical engineering journal advances 2021

Low nitrogen (N) use efficiency from urea fertilizers due to environmental losses results in high cost of for agricultural productions. Coating with biodegradable polymers makes them effective control and efficient N release. In this study, starch polyvinyl alcohol (PVA) were used combination acrylic acid (AA), citric (CA) maleic (MA) the coating prills. Different formulations prepared applied ...

Journal: :journal of medicinal plants and by-products 0

in order to evaluate the response of major nutrients concentration, uptake and their efficiencies of isabgol (plantago ovata) to n fertilizer combinations and irrigation regimes, a field experiment was conducted at the agricultural research farm of shahrekord university, 2009. the experiment was arranged as split-plot, in randomized complete block design with three replications. the irrigation ...

Journal: :پژوهش های تولید گیاهی 0

this research was carried out for the purpose of urea fertilizer, organic matter and pgpr bacteria effects on yield and some growth indices on winter wheat (triticum aestivum c.v alvand). this research was carried out with factorial experiment on completely randomized design with 4 replication in greenhouse. treatments included bacteria 4 levels, without bacteri, a. brasilense, a. chroococum, i...

Journal: :علوم دامی ایران 0
محسن سمیعی زفرقندی تقی قورچی مجتبی آهنی آذری

the objective of this study was to determine the effects of hulled and hull-less barley grains’ chemical treatment on disappearance of dry matter (dm), starch and cncps carbohydrate fractions. for barley grain treatment, naoh, formaldehyde and urea were used at 35, 4 and 35 gr/kg dm respectively. three mature rams (one year old) of zel breed were rumen cannulated to calculate ruminal disappeara...

2006
R. J. Norman J. T. Bushong

The preflood nitrogen (N) fertilizer sets the yield potential of the rice cultivars being grown and thus, its management is critical to obtaining profitable rice grain yields. The objectives of this study were to evaluate the ammonia volatilization loss and impact on rice yield when urea, Agrotain®, and ammonium sulfate were applied preflood and a flood established at 1, 5, and 10 days after N ...

Journal: :مدیریت خاک و تولید پایدار 0
منیر نظری دانشجوی کارشناسی ارشد آگرواکولوژی دانشگاه شهرکرد سیف اله فلاح عضو هیات علمی دانشکده کشاورزی، دانشگاه شهرکرد شهرام کیانی عضو هیأت علمی دانشگاه شهرکرد جلال جلیلیان عضوهیأت علمی دانشگاه ارومیه

plants are the most sources for cadmium enters to human food and this element in food regime may be a serious threat to human health. thus, the effect of azotobacter inoculum (azotobacter chroococcum), mycorrhiza fungi (glomus intraradaices) , zinc sulphate and urea on cadmium convertation and growth parameters of fenugreek medicinal plant (trigonella foenum gracum l.) in cadmium polluted soils...

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