نتایج جستجو برای: 75 kgha sulfur
تعداد نتایج: 173835 فیلتر نتایج به سال:
1. Saturated solutions of sulfur in alcohol (alcohol-sulfur) when diluted with broth are inhibitory to the growth of various Gram-positive bacteria and to C. hominis. By an arbitrary method of unitage with S. aureus as the test organism, our alcohol-sulfur contains 1,600 to 2,000 units per cc. and one unit contains between 0.24 and 0.34 gamma sulfur. The activity of a preparation is in general ...
the main reasons for the fixation of some elements and consequently nutrient deficiencies, especially phosphorus, iron and zinc, are high levels of calcium (calcareous soils) and soil ph. two sulfur fertilizers (sulfur alone and sulfur + organic material + thiobacillus spp.) with two rates (2 and 4 kg sulfur/tree) were used to decrease soil ph and availability of p, fe and zn in apple trees dur...
Complex heat transfer phenomena (including unsteady state conduction, convection and solidification processes) occur in steel belt conveyer sulfur granulating method. Numerical simulation of this technique is performed via a comprehensive and multifaceted one dimensional model. Since the air situated between the adjacent sulfur pastilles is essentially stagnant, therefore, the surface tempe...
In the presented work, sulfur concrete and rubber were used for producing functionally graded materials (FGM). The physical and mechanical properties of sulfur concrete and rubber were changed continuously across the thickness. On one side, there was just rubber and, on the other, there was pure sulfur; the properties of each substance were moved to reach another. This kind of material was cons...
Globally, excess soil nutrient mining is a serious challenge to sustainable agricultural production. The task more daunting in the semi-arid region of globe. In addition primary deficiency over secondary nutrients, especially sulfur an emerging contemporary crop production systems. Hence, there dire need devise appropriate management protocol by searching for efficient and sources. Therefore, e...
considering high alkalinity of iranian soils and lack of availability of some nutrients in those conditions, sulfur consumption is one approach to increase the availability of insoluble nutrients especially in calcareous and alkaline soils. effectiveness of sulfur depends on activity of sulfur oxidizing bacteria especially thiobacillus genus (t). in order to study the qualitative yield and morp...
sulfur dioxide has two important sources in the atmosphere and this is why most of scientists believe in a geographic split in the globe. power plants, major emitter of so2, are located in north hemisphere such as in russia, china, canada and the usa. in south hemisphere, phytoplankton produces a massive amount of dimethyl sulfide (dms) and dimethyl disulfide (dmds). then these types of reduced...
Background: Sulfur mustard was the most widely applied chemical warfare agent by the Iraqi army in Iran–Iraq war (1983-1988). Considering the role of sulfur mustard toxicity in hematopoietic neoplasms and also new role of JAK2 mutation in these neoplasms, we assessed this mutation and delayed hematologic complications in veterans exposed to sulfur mustard. Methods: This case control st...
: استفاده بهینه از کودهای نیتروژنی به منظور افزایش عملکرد، جذب نیتروژن و همچنین حفظ محیط زیست، امری اجتناب ناپذیر است. کاهش هدررفت نیتروژن با استفاده از کودهای کندرها یکی از راهکارهای مناسب برای نیل به اهداف مذکور می باشد. به منظور مقایسه کارآیی کودهای نیتروژنی کندرهای اوره با پوشش گوگردی sulfur coated urea (scu) و اوره زئولیتی (uz) با اوره در رشد ذرت (zea mays l.)، طرح تحقیقاتی در سال 88- 1387...
Sulfur emission from coal combustion presents many environmental problems. The techniques used to reduce the amount of sulfur in coal before combustion, include physical, chemical and biological processes.Biological processes based on degradation of sulfur compounds by microorganisms offer many advantages over the conventional physical and chemical processes. The processes are performed und...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید