Plants Emerging from Soils under Three Range Condition Classes of Desert Grassland
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چکیده
منابع مشابه
conjugated linoleic acids, amino acid profile and other characteristics of meat produced under identical condition from two iranian fat tailed breeds of lamb
گوشت قرمز یکی از مهم ترین فرآورده های دامی در تأمین پروتئین و انرژی می باشد که در حمل ویتامین های محلول در چربی نیز حائز اهمیت می باشد. انسان مانند سایر مهره داران اسید های چرب ضروری (لینولئیک و آلفا لینولنیک) مورد نیاز خود از طریق غذا تأمین می نماید. اسید های چرب ضروی پیش ساز اسید های چرب غیر اشباع با چند پیوند دوگانه هستند. اسید لینولنیک پیش ساز اسیدهای چرب امگا 3 و اسید لینولئیک نیز پیش ساز ...
Biodegradability of Atrazine, Cyanazine and Dicamba under methanogenic condition in three soils of China.
Persistence and degradation of the herbicides Atrazine, Cyanazine and Dicamba were measured in laboratory microcosms incubated under methanogenic condition using three soils of China. Results showed that Atrazine was more resistant to degradation than Cyanazine and Dicamba for the 300 days of incubation. Between 30% and 40% of the initially introduced chemicals were found to be not recoverable ...
متن کاملRange Condition Classes of Native Midwestern Pasture: An Ecological Analysis
INTRODUCTION Many tracts of native vegetation still remain in the western portion of that vast North American grassland known as True Prairie. Some are mowed annually for the crop of excellent forage, but far greater areas are now in native pasture (Weaver & Fitzpatrick 1932, 1934). One result of the long years of study of the grazed portion of this grassland was the recognition of the manner i...
متن کاملthe effects of saline groundwater on soil properties and yield of three range plants in saline soils
the use of saline groundwater resources, in addition to save fresh water, could be used in production of forage in saline soils. in order to do it, the area in northern ardakan, yazd province with saline ground water (ec= 11.25ds/m, sar= 16.7) and saline and alkaline soil (ec=27.3ds/m, esp= 30.2%) was selected for planting of atriplelentiformis, seidlitzia rosemarinus, and nitraria schoberi. th...
متن کاملSubcritical water extraction of amino acids from Atacama Desert soils
[1] Amino acids are considered organic molecular indicators in the search for extant and extinct life in the Solar System. Extraction of these molecules from a particulate solid matrix, such as Martian regolith, will be critical to their in situ detection and analysis. The goals of this study were to optimize a laboratory amino acid extraction protocol by quantitatively measuring the yields of ...
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ژورنال
عنوان ژورنال: Journal of Range Management
سال: 1978
ISSN: 0022-409X
DOI: 10.2307/3897181