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You searched for: Journal name Agronomy journal Remove constraint Journal name: Agronomy journal Publication year rev 8020-1980 Remove constraint Publication year rev: 8020-1980 Publication Year 1980 Remove constraint Publication Year: 1980 Subject term Medicago sativa Remove constraint Subject term: Medicago sativa Text availability Citation in PubAg Remove constraint Text availability: Citation in PubAg
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1. Ammonia Exchange at the Land Surface

Author:
Edgar Lemon; Raymond Van Houtte
Source:
Agronomy journal 1980 v.72 no.6 pp. 876-883
ISSN:
0002-1962
Subject:
Elymus repens subsp. repens; Glycine max; Medicago sativa; absorption; agronomy; air; alfalfa; ammonia; biosphere; computer simulation; nitrogen fixation; soil; vegetation; wind
Abstract:
... Studies of NH₃ exchange between plant leaves and air have mostly been made in controlled chambers where the concentrations were far above the ambient atmospheric levels usually found in nature. Under such conditions leaves act as an infinite sink for NH₃. More recent controlled chamber studies, however, have shown NH₃ evolving from leaves when concentrations were nearer to those of the atmosphere. ...
DOI:
10.2134/agronj1980.00021962007200060005x

2. Establishment of Alfalfa by Conventional and Minimum-Tillage Seeding Techniques in a Quackgrass-Dominant Sward

Author:
G. W. Mueller-Warrant; D. W. Koch
Source:
Agronomy journal 1980 v.72 no.6 pp. 884-889
ISSN:
0002-1962
Subject:
Elymus repens subsp. repens; Haplorthods; Medicago sativa; alfalfa; application timing; discing; energy; forage; forage yield; glyphosate; labor; minimum tillage; mowing; paraquat; pesticide application; plant density; plowing; sandy loam soils; seedlings; sowing; sward
Abstract:
... Minimum-tillage establishment of forages offers potential advantages over the conventional method in terms of reducing energy and labor requirements, erosion hazard, and improving flexibility, and timeliness of operation. Our objective was to compare these methods of establishing alfalfa (Medicago sativa L.) with various herbicides, time intervals between herbicide application and seeding, and see ...
DOI:
10.2134/agronj1980.00021962007200060006x

3. In Vitro Fermentation of Forages with Inoculum from Cattle and Sheep Fed Different Diets

Author:
G. M. J. Horton; D. A. Christensen; G. M. Steacy
Source:
Agronomy journal 1980 v.72 no.4 pp. 601-605
ISSN:
0002-1962
Subject:
Agropyron; Avena sativa; Bromus inermis; Hordeum; Medicago sativa; Triticum aestivum; acid detergent fiber; agronomy; alfalfa; barley; diet; dry matter digestibility; fermentation; forage quality; hay; inoculum; oats; regression analysis; wheat; wheat straw
Abstract:
... Inoculum is the single most important source of variation in in vitro rumen fermentation systems used to predict forage quality. This investigation was carried out to study the effects of donor animal diet and donor animal species on the activity of the inoculum (whole rumen fluid) used in the two stage in vitro fermentation technique for estimating forage digestibility. Two wethers and two steers ...
DOI:
10.2134/agronj1980.00021962007200040007x

4. In Vivo Quality of Tall Fescue as Influenced by Season, Legumes, Age, and Canopy Strata

Author:
E. B. Rayburn; R. E. Blaser; J. P. Fontenot
Source:
Agronomy journal 1980 v.72 no.6 pp. 872-876
ISSN:
0002-1962
Subject:
Dactylis glomerata; Festuca arundinacea; Medicago sativa; Trifolium pratense; alfalfa; animal performance; application rate; ash content; canopy; climate; digestibility; digestible dry matter; dormancy; dry matter accumulation; economic impact; forage; grazing; lignin; regrowth; sheep; summer; winter
Abstract:
... Fall-grown tall fescue (Festuca arundinacea, Schreb.) provides a relatively inexpensive forage for winter grazing. Quality and yield of actively growing tall fescue increases when accumulated from August and harvested through time in the early fall. The effect of regrowth age on fall accumulated tall fescue quality has not been evaluated under similar harvest climates and animal performance on sum ...
DOI:
10.2134/agronj1980.00021962007200060004x

5. Irrigation Regime and Honeybee Activity as Related to Seed Yield in Alfalfa

Author:
A. Goldman; A. Dovrat
Source:
Agronomy journal 1980 v.72 no.6 pp. 961-965
ISSN:
0002-1962
Subject:
Medicago sativa; agronomy; alfalfa; death; honey bees; irrigation management; pollen; quantitative analysis; seed yield; soil water; sprinkler irrigation
Abstract:
... Seed yields of alfalfa (Medicago sativa L.) vary capriciously in time and space. This variation seems mainly caused by the delicate interplay between plant factors monitored by soil moisture availability and the obligate tripping requirement of alfalfa flowers by pollinators. The object of this study was to quantify the main effects and interactions between water application to the alfalfa field a ...
DOI:
10.2134/agronj1980.00021962007200060023x

6. Manure and Mineral Fertilizer Effects in Continuous and Rotational Crop Sequences in Central New York

Author:
Jon O. Baldock; Robert B. Musgrave
Source:
Agronomy journal 1980 v.72 no.3 pp. 511-518
ISSN:
0002-1962
Subject:
Hapludalfs; Medicago sativa; Triticum aestivum; Zea mays; agronomy; alfalfa; corn; crop rotation; cropping sequence; energy; forage; grasses; mineral fertilizers; pH; soil fertility; soil organic matter; wheat; New York
Abstract:
... Estimates of the effects of mineral fertilizer, manure, and legumes on crop yields and soil fertility in various technologies and environments are important for maintaining efficient crop production and reducing energy use in agriculture. Estimates of these effects were made in a long-term study (1955 to 1968) at Aurora, N.Y. on soils of the Honeoye-Lima and Kendaia series (Glossoboric Hapludalf a ...
DOI:
10.2134/agronj1980.00021962007200030024x

7. Nitrogen in the P Band for Forage Establishment

Author:
R. W. Sheard
Source:
Agronomy journal 1980 v.72 no.1 pp. 89-97
ISSN:
0002-1962
Subject:
Bromus inermis; Hapludalfs; Lotus corniculatus; Medicago sativa; agronomy; alfalfa; ammonium nitrogen; cold season; crops; fertilizers; forage; monocalcium phosphate; nitrogen; seedling growth; seedlings; sowing
Abstract:
... Band seeding, a recommended practice for forage establishment, increases seedling growth primarily because of early P uptake. Ammonium N (NH₄⁺) has been demonstrated to increase P uptake with several crop species. The objective of the experiments reported herein was to determine if the inclusion of N as NH₄⁺ in the P band would result in a further increase in the seedling weight of forage species. ...
DOI:
10.2134/agronj1980.00021962007200010018x

8. Perennial Irrigated Pastures. III. Beef Calf Production from Irrigated Pasture and Winter Annual Range

Author:
C. A. Raguse; J. L. Hull; R. E. Delmas
Source:
Agronomy journal 1980 v.72 no.3 pp. 493-499
ISSN:
0002-1962
Subject:
Medicago sativa; agronomy; alfalfa; beef; beef cows; beef industry; birth weight; calves; drought; forage; irrigated pastures; irrigation; production economics; summer; weight loss; winter
Abstract:
... Irrigated pastures in the Western arid and semi-arid regions provide support to the beef cattle industry through the maintenance of beef cow herds and the production of calves. Increasingly unfavorable production economics, including the rising cost and logistical difficulty of seasonally moving cattle from seasonal range to other pastures (e.g., high mountain Federal granng allotments), necessita ...
DOI:
10.2134/agronj1980.00021962007200030021x

9. Regrowth and Alcohol Dehydrogenase Activity in Waterlogged Alfalfa and Birdsfoot Trefoil

Author:
A. L. Barta
Source:
Agronomy journal 1980 v.72 no.6 pp. 1017-1020
ISSN:
0002-1962
Subject:
Lotus corniculatus; Medicago sativa; Phytophthora megasperma; acetylene reduction; alcohol dehydrogenase; alfalfa; carbohydrates; enzyme activity; ethanol; flooded conditions; flooding tolerance; greenhouse experimentation; hypoxia; leaves; regrowth; roots; shoots; zoospores
Abstract:
... Susceptability of alfalfa (Medicago sativa L.) to waterlogging injury seriously limits its persistance and adaptability. Waterlogging injury and accumulation of ethanol under root anoxia may be causal agents which facilitate or promote infection by Phytophthora megasperma Drechsler zoospores and result in “root rot” of alfalfa. While induction of alcohol dehydrogenase (ADH) and increased root accu ...
DOI:
10.2134/agronj1980.00021962007200060036x

10. Sod-Seeding Bahiagrass in Winter with Three Temperate Legumes

Author:
R. S. Kalmbacher; P. Mislevy; F. G. Martin
Source:
Agronomy journal 1980 v.72 no.1 pp. 114-118
ISSN:
0002-1962
Subject:
Medicago sativa; Paspalum notatum; Trifolium pratense; Trifolium repens; agricultural research; alfalfa; crude protein; dalapon; dry matter accumulation; forage; grasses; paraquat; pasture plants; pastures; seedlings; sowing; winter; Florida
Abstract:
... Bahiagrass, Paspalum notatum Flügge, is the major pasture grass in Florida and constitutes large hectarages in other Southern states. The species produces little forage during winter, thus overseeding with temperate legumes could be of great value to cattlemen. This experiment was designed to define the problems and potential of sod-seeding temperate legumes in bahiagrass. At the Ona Agricultural ...
DOI:
10.2134/agronj1980.00021962007200010023x