نتایج جستجو برای: organic matter content omc

تعداد نتایج: 777511  

Journal: :journal of agricultural science and technology 2011
m. abarghoei y. rouzbehan d. alipour

this study was conducted to determine the nutritive value of fresh and ensiled whole and partly stoned olive cake (oc) with or without molasses i.e., 0 and 50 gkg-1 on fresh basis. dry matter (dm), organic matter (om), crude protein (cp), neutral detergent fiber (ndf), acid detergent fiber (adf), lignin (sa), ether extract (ee), water soluble carbohydrates (wsc), and total phenols (tph) of all ...

Journal: :تحقیقات آب و خاک ایران 0
سیده مهرنوش میر بابایی کارشناسی ارشد دانشکدة کشاورزی دانشگاه گیلان محمود شعبانپور استادیار دانشکده کشاورزی، دانشگاه گیلان علی اصغر ذوالفقاری دانشجوی دکتری پردیس کشاورزی و منابع طبیعی دانشگاه تهران

the occurrence of soil water repellency and its intensity were studied in three sites under pinus teada, petrocarya fraxinifolia and sombucus ebulus in talesh township, western part of guilan province. seventy nine undisturbed soil samples from 0–5 cm depth were collected for water repellency and water-soil contact angle to be determined in a dry season. soil water repellency was assessed using...

2011
Yandan Qiao Shujuan Zhang

The detection method of the soil nutrients (organic matter and available N, P, K) were analyzed based on the near infrared spectroscopy technology in order to decision-making for precision fertilization. 54 samples with 7m×7m was collected using DGPS receiver positioning in a soybean field. The soil organic matter, available nitrogen (N), available phosphorus (P), available potassium (K) conten...

Journal: :مرتع و آبخیزداری 0
محمد جعفری علی طویلی مسلم رستم پور محمد علی زارع چاهوکی جلیل فرزادمهر

this study was carried out to investigate the effective environmental factors in the distribution of vegetation in zirkouh rangelands of qaen. after delimitation of the study area, sampling of soil and vegetation were performed using randomized- systematic method. vegetation cover was recorded by using braun-blanquet combined abundance-cover scale in each sample. within each sample, one profile...

2006
MH GRAHAM RJ HAYNES JH MEYER

Analysis of data from the long term trash management trial at Mount Edgccombe (BTI) has shown that, after 59 ycars of green cane harvesting, with trash retention there was a significant incr-ease in soil organic matter content in thc surface 10 cm of soil compared with burning. The size of the microbial biomass, and its rcspiratory rate, dchytlrogenase activity and arginine ammonification rate ...

2015
Jun Kido Tomoaki Matsumoto

Ovomucoid (OMC) is the most prominent allergen causing hen's egg allergy, containing disulfide (S-S) bonds that may be responsible for its allergic action. As S-S bonds may be reduced during electrolysis, this study was undertaken to evaluate modulation of the allergic action of OMC after electrolysis. Electrolysis was carried out for 1% OMC containing 1% sodium chloride for 30 minutes with a v...

2005
William C. Malm Derek E. Day Sonia M. Kreidenweis Jeffrey L. Collett Christian Carrico Gavin McMeeking Taehyoung Lee

Observation and appreciation of scenic landscape features, airport runway visibility, and the earth’s radiation balance are all dependent on the radiative properties of the atmosphere, which in turn are dependent on the scattering and absorption characteristics of ambient aerosols. Atmospheric scattering and, to a lesser degree, absorption characteristics are highly dependent on the amount of w...

2013
Eliete B. Canterle David da Motta Marques Lúcia R. Rodrigues

Temporary wetlands are short-term alternative ecosystems formed by flooding for irrigation of areas used for rice farming. The goal of this study is to describe the development cycle of rice fields as temporary wetlands in southern Brazil, evaluating how this process affect the gas production (CH4 and CO2) in soil with difference % carbon and organic matter content. Two areas adjacent to Lake M...

Journal: :international journal of environmental research 2010
b. rafiei m. bakhtiari nejad m. hashemi a.s. khodaei

the aim of the study is to determine the major source and extent of metal pollution in the vicinity of dashkasan gold mine. dashkasan mine has resulted in extensive contamination of soils by arsenic (as) and potentially toxic ore-related elements including mercury (hg), antimony (sb) and cadmium (cd). soils samples were collected and analyzed for as, cd, hg, pb and sb. the concentration of each...

Journal: :journal of rangeland science 2013
leila darvishi mohammad ali zare chahouki mohammad jafari hussein azarnivand majid yousefi valikchali

growth and productivity of plants are mainly affected by various environmentalfactors in different ecosystems and natural habitat in the world. this research aims to studythe existing relationships between the phytosociology characteristics of thymuskotschyanus and environmental factors in order to find the most important factorsgoverning development of the species in middle taleghan rangelands...

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