نتایج جستجو برای: forage crops

تعداد نتایج: 51548  

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2003
G T Champion M J May S Bennett D R Brooks S J Clark R E Daniels L G Firbank A J Haughton C Hawes M S Heard J N Perry Z Randle M J Rossall P Rothery M P Skellern R J Scott G R Squire M R Thomas

The Farm Scale Evaluations of genetically modified herbicide-tolerant crops (GMHT) were conducted in the UK from 2000 to 2002 on beet (sugar and fodder), spring oilseed rape and forage maize. The management of the crops studied is described and compared with current conventional commercial practice. The distribution of field sites adequately represented the areas currently growing these crops, ...

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Journal: :HortScience 1997

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Journal: :Kansas Agricultural Experiment Station Research Reports 1983

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Journal: :علوم گیاهان زراعی ایران 0
محمود رمرودی داریوش مظاهری ناصر مجنون حسینی عبدالهادی حسین زاده سید محمد باقر حسینی

to evaluate the effect of cover crops, tillage systems and nitrogen (n) application rates on yield of forage sorghum (cv. kfs3), a factorial–spilt plot arrangement based on randomized complete block design with four replications was carried out at the research farms college of agriculture and natural resources, university of tehran, karaj, during the growing seasons of years 2005 and 2006. comb...

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Journal: :EDIS 1969

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2012
Zeng-Yu Wang E. Charles Brummer

BACKGROUND Genetic engineering offers the opportunity to generate unique genetic variation that is either absent in the sexually compatible gene pool or has very low heritability. The generation of transgenic plants, coupled with breeding, has led to the production of widely used transgenic cultivars in several major cash crops, such as maize, soybean, cotton and canola. The process for regulat...

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2002
Thomas C. Griggs Willie Riggs

Factors affecting forage production, quality, marketing, and utilization include urbanization; availability of crop production resources; approaches to environmental stewardship; and other social and economic forces. Two factors of particular interest are 1) availability of pesticides for use in alfalfa and other forage crops; and 2) new laboratory procedures for predicting forage nutritional v...

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2017
Kenneth P. Vogel H. J. Gorz Francis A. Haskins

In the central Great Plains, pastures and rangelands often are not economically competitive with grain crops. This has led to increases in acreages of row crops at the expense of rangelands, pastures, and hay crops on marginal lands resulting in severe erosion problems. The productivity of forages, pastures, and rangelands needs to be increased to levels that would make them economically compet...

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2009
Nadav Nitzan Marc A. Evans Tom F. Cummings Dennis A. Johnson Chris Olsen Kathleen G. Haynes Charles R. Brown

Nadav Nitzan, Vegetable Forage Crops and Research Unit, USDA-ARS, Prosser, WA 99350; Marc A. Evans, Department of Statistics, Washington State University, Pullman 99164; Tom F. Cummings and Dennis A. Johnson, Department of Plant Pathology, Washington State University, Pullman 99164; Dallas L. Batchelor, Lamb-Weston, Pasco, WA 99301; Chris Olsen, L.J. Olsen, Inc., Othello, WA 99344; Kathleen G. ...

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2005
I. RYE

MANY papers dealing with the composition and digestibility of forage crops are to be found in the literature, but the analyses are usually restricted to those few groups included in the conventional methods of agricultural analysis. These rarely extend beyond the determination of ash, or mineral constituents, crude protein, crude fibre and ether-soluble material. The sum of these analyses is fa...

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