نتایج جستجو برای: smooth brome

تعداد نتایج: 118571  

Journal: :Journal of animal science 1986
S K Wimer J K Ward B E Anderson S S Waller

Mefluidide, a plant growth regulator, was evaluated in two cow-calf grazing trials and one herbage trial on smooth brome (Bromus inermis) pastures stocked at recommended densities in eastern Nebraska. Mefluidide-treated pasture increased cow and calf production during August of 1982 (P = .03) and calf production was greater during July of 1983 (P = .09). Mefluidide-treated smooth brome pastures...

Journal: :Journal of environmental quality 2004
Z Y Wang J M Kelly J L Kovar

Root activity can modify the chemistry of the rhizosphere and alter phosphorus (P) availability and uptake. However, until recently, relatively little was known about the dynamics of soil solution P at the root surface because of our inability to measure in situ changes in solution P at the plant root. A mini-rhizotron experiment with corn (Zea mays L. cv. Stine 2250), soybean [Glycine max (L.)...

Journal: :Kansas Agricultural Experiment Station Research Reports 2021

Three different herbicides were applied at early bromegrass greenup and post hay harvest to assess their effectiveness in controlling foxtail two producer meadow sites Pottawatomie (PT) Dickinson (DK) counties. Pendimethalin resulted the greatest control, but control did not extend through season reduce late-summer infestations. Metsulfuron approximately 30% visible brome injury. The injury was...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده منابع طبیعی 1385

یکی از مشکلات مراتع ایران عدم رعایت زمان مناسب ورود و خروج دام می باشد. این موضوع صدمات زیادی را به مراتع وارد نموده است به گونه ای کا زاد آوری و بقاء تعداد زیادی از گونه های مهم و خوش خوراک مرتعی با تهدید روبرو شده است. مجموع کربوهیدرات های غیر ساختاری (tnc) به عنوان منبع اصلی ذخایر غذایی گیاهان محسوب میشود که گیاهان از این ذخایر برای تنفس، رشد اولیه، رشد مجدد پس از برداشت یا چرا شدن و نیازهای...

2012
Xuejun Dong

In grasses, food reserves in crowns and rhizomes support herbage production and allow regrowth in the spring. One important factor leading to the relative competitiveness of Kentucky bluegrass and smooth brome is that they initiate spring regrowth earlier than their native counterparts in the mixed-grass prairie. It still remains to be tested if there is a greater biomass investment to crowns o...

Journal: :The Science of the total environment 2015
Lijuan Yan Petri Penttinen Asko Simojoki Frederick L Stoddard Kristina Lindström

Soil contamination by petroleum hydrocarbons is a global problem. Phytoremediation by plants and their associated microorganisms is a cost-effective strategy to degrade soil contaminants. In boreal regions the cool climate limits the efficiency of phytoremediation. The planting of oil-tolerant perennial crops, especially legumes, in oil-contaminated soil holds promise for great economic benefit...

2017
D. H. Shain T. J. Klopfenstein G. E. Erickson D. H. SHAIN T. J. KLOPFENSTEIN R. A. STOCK B. A. VIESELMEYER

Studies across 5 yr involving 938 British-breed crossbred cattle (372 heifers, 566 steers) were used to evaluate the effects of grazing alternate summer and fall forages on slaughter breakeven cost of various beef production systems. Grazed summer forage combinations included 1) continuous brome, 2)brome and warm-season grasses, 3) brome and alfalfa or sudangrass, 4) brome and a monoculture of ...

2005
D. Smeal M. K. O’Neill R. N. Arnold

A significant portion of the irrigated acreage in the intermountain western U.S. is comprised of cool season grass pastures. Droughts, coupled with increasing demands for limited water supplies in the region, have decreased the water volumes available for irrigating these pastures and other crops. Consequently, relationship between crop yield and irrigation (water production functions) should b...

Journal: :IOP conference series 2022

Abstract Nowadays due of the world population growth, demand for agricultural products is also growing. To obtain good meat and dairy products, high-quality feed farm animals necessary. Legume-gramineous perennial grass mixtures are used to improve fodder lands. Our experience included a test 9 variants legume-gramineous mixtures, where 6 types grasses were used: red clover, alfalfa (legumes), ...

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