scholarly journals Planting Alfalfa with Cover Crops on Forage Dry Matter Yield and Nutritive Values of Alfalfa

2017 ◽  
Vol 5 (2) ◽  
pp. 107
Author(s):  
Doohong Min ◽  
Iryna McDonald
Keyword(s):  
Cover Crops ◽  
Dry Matter ◽  
Neutral Detergent Fiber ◽  
Dry Matter Yield ◽  
Annual Ryegrass ◽  
Oilseed Radish ◽  
Nutritive Values ◽  
Raphanus Sativus L ◽  
Medicago Sativa L ◽  
Winter Annual

The objective of this study was to evaluate the effect of planting alfalfa (Medicago sativa L.) with- and without cover crops on forage dry matter yield and nutritive values of alfalfa in Kansas, USA. In the first production year 2014, dry matter yield of mono-culture alfalfa appears to be compatible or even higher than planting with certain species of winter annual forages as a cover crop. Alfalfa planted with a combination of four different multi-species winter annual forages such as oats (Avena sativa L.), oilseed radish (Raphanus sativus L.), annual ryegrass (Lolium multiflorumL.), and turnip (Brassica rapa L.) had the highest dry matter yield of alfalfa in 2014.Dry matter yield of alfalfa in 2nd production year 2015 was similar to alfalfa + oats and alfalfa + oats + oilseed radish + annual ryegrass + turnip or significantly higher than alfalfa planted with annual ryegrass, oilseed radish, and turnip together. Based on two year of data in 2014 and 2015, the highest alfalfa yield occurred when alfalfa was planted with a combination of oats, oilseed radish, annual ryegrass, and turnip. The lowest dry matter yield of alfalfa occurred when alfalfa was planted with annual ryegrass.No significant differences in crude protein (CP), acid detergent fiber (ADF), and neutral detergent fiber (NDF) were found when comparing alfalfa monoculture with alfalfa + oats, alfalfa + oilseed radish, alfalfa + oats + oilseed radish + annual ryegrass + turnip, and alfalfa + turnip treatments. When considering both dry matter and nutritive values of alfalfa, planting alfalfa with cover crops appears to be compatible or better practice than planting alfalfa monoculture.

Assessment of yield and quality characteristics of alfalfa (Medicago sativa L.) cultivars with different fall dormancy rating

2017 ◽  
Author(s):  
Mustafa Avci ◽  
Rüºtü Hatipoglu ◽  
Selahattin Çinar ◽  
Numan Kiliçalp
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Quality Parameters ◽  
Neutral Detergent Fiber ◽  
Dry Matter Yield ◽  
Acid Detergent Fiber ◽  
Yield And Quality ◽  
Fall Dormancy ◽  
Feed Value ◽  
Medicago Sativa L

This research was conducted to determine performances of seven alfalfa cultivars with different fall dormancy rates in terms of dry matter yield and some quality parameters under Mediterranean conditions throughout the years of 2007-2009. In the study, cultivars were evaluated for dry matter yield (DMY), leaf/stem ratio (LSR), crude protein (CP) content, crude protein yield (CPY), acid detergent fiber (ADF), neutral detergent fiber (NDF), digestible dry matter (DDM) content and relative feed value (RFV). According to average of two year results, there were significant differences among alfalfa cultivars in terms of all characters studied. Mean DMY, LSR, contents of CP, ADF, NDF, DDM and RFV were determined as 18.147 t ha-1, 0.82, 17.4 %, 41.0 %, 49.0 %, 56.9 % and 114. The highest DMY averaged over two years was obtained from cultivar Nimet while lowest one was obtained from Magnum 5. As a dormant cultivar, Magnum 5 was superior in terms of LSR and CP content to the other alfalfa cultivars and it was lower in ADF and NDF content than the others. It was concluded that cultivar Nimet with the highest DMY and CPY yields can be recommended as a non-dormant cultivar for farmers in regions of Turkey with the Mediterranean climate.

scholarly journals Yield and quality of Maralfalfa forage during long days on three dairy farms in northern Puerto Rico

1969 ◽  
Vol 98 (2) ◽  
pp. 169-177
Author(s):  
Rafael Ramos-Santana ◽  
Yamil Quijano-Cabrera ◽  
Raúl Macchiavelli
Keyword(s):  
Puerto Rico ◽  
Dry Matter ◽  
Forage Quality ◽  
Neutral Detergent Fiber ◽  
Net Energy ◽  
Regression Equations ◽  
Dry Matter Yield ◽  
Yield And Quality ◽  
Harvest Intervals

An experiment was conducted to evaluate the dry matter yield and quality performance of Maralfalfa forage obtained at six harvest intervals (HI; 40, 50, 60, 70, 80, 90 d) on three dairies in northern Puerto Rico during the long day season. The 40-day harvest interval was significantly (P < 0.05) inferior in dry matter yield to those of 60, 80, and 90 days; no significant (P < 0.05) differences in yield were observed among intervals of 40, 50 and 70 days. The 40-day interval showed the highest forage quality as indicated by crude protein content, digestibility in vitro of dry matter and neutral detergent fiber, and estimated net energy, index of relative forage quality and theoretical milk production. Although significant (P < 0.05) differences were observed in some of these criteria between 40- and 50-day harvest intervals, the latter maintained a good nutritional value in contrast to drastic losses in quality observed with the longer harvest intervals under study. The simple regression equations between digestibility in vitro of dry matter and of neutral detergent fiber versus harvest interval showed a decrease in digestibility of 2.7 and 3.0 percentage points for each additional 10 days of harvest interval, respectively.

RESPONSE OF SIX-YEAR-OLD GRASS–ALFALFA PASTURES TO NITROGEN FERTILIZER IN NORTHEASTERN SASKATCHEWAN

1968 ◽  
Vol 48 (2) ◽  
pp. 167-173 ◽  
Author(s):  
D. A. Cooke ◽  
S. E. Beacom ◽  
W. K. Dawley
Keyword(s):  
Nitrogen Fertilizer ◽  
Dry Matter ◽  
Linear Increase ◽  
Bromus Inermis ◽  
Dry Matter Yield ◽  
Stocking Rate ◽  
Intermediate Wheatgrass ◽  
Nitrogen Requirement ◽  
Medicago Sativa L ◽  
N Treatment

Two 6-year-old grass–alfalfa mixtures were compared when fertilized with 0, 84 and 168 kg nitrogen per hectare and grazed by yearling Hereford steers. The effect of stocking rate, fertilization, forage mixture and year on the cumulative liveweight gain per hectare was also determined. The bromegrass (Bromus inermis L.) and alfalfa (Medicago sativa L.) mixture showed a linear increase in dry matter yield, but the nitrogen requirement of the intermediate wheatgrass (Agropyron intermedium L.) and alfalfa mixture was fully met by the 84-kg/ha N treatment. In 1960, the addition of 84 and 168 kg/ha N to the bromegrass–alfalfa increased animal production by 61 and 98% respectively. Corresponding increases of 53 and 56% were obtained from the fertilized intermediate wheatgrass–alfalfa mixture. Similar percentage increases were obtained in 1961. The 84-kg/ha N treatment reduced the alfalfa content of both mixtures by more than 40%. The 168-kg/ha N treatment practically eliminated the alfalfa from the stands. Nitrogen recovery by the bromegrass–alfalfa was similar at both fertility levels and amounted to 62% in 1960, and 24% in 1961. Recovery of nitrogen by intermediate wheatgrass–alfalfa was 62 and 36% from the 84- and 168-kg/ha N treatments in 1960, and 23 and 12% respectively in 1961.

PREDICTED FORAGE VALUE OF WHOLE PLANT CEREALS

1975 ◽  
Vol 55 (4) ◽  
pp. 975-986 ◽  
Author(s):  
L. J. FISHER ◽  
D. B. FOWLER
Keyword(s):  
Organic Matter ◽  
Dry Matter ◽  
Dry Weight ◽  
Neutral Detergent Fiber ◽  
Dry Matter Yield ◽  
Acid Detergent Fiber ◽  
Whole Plant ◽  
Digestible Organic Matter ◽  
Forage Value

Dry matter yield, percent dry weight, in vitro digestible dry matter, in vitro digestible organic matter, neutral detergent fiber, acid detergent fiber, ash and hemicellulose contents were determined for spring- and fall-sown common wheat, barley, rye and triticale and spring-sown durum wheat and oats for the period from late boot to maturity. Differences among cultivars and stages of maturity were significant for all parameters. These differences were accompanied by stage of maturity interactions. Consideration of the interrelationships among these parameters revealed that level of in vitro digestible dry matter was reflected in measures of acid detergent fiber and ash or percent dry weight. Further analyses indicated that differences in digestibility due to stage of maturity were primarily reflected by changes in ash or percent dry weight, while differences in digestibility among cultivars were mainly attributable to differences in acid detergent fiber.

USE OF THE IN SITU TECHNIQUE AND PASSAGE RATE CONSTANTS IN PREDICTING VOLUNTARY INTAKE AND APPARENT DIGESTIBILITY OF FORAGES BY STEERS

1989 ◽  
Vol 69 (4) ◽  
pp. 973-987 ◽  
Author(s):  
MARINA A. G. VON KEYSERLINGK ◽  
G. W. MATHISON
Keyword(s):  
Dry Matter ◽  
Neutral Detergent Fiber ◽  
Passage Rate ◽  
Feeding Level ◽  
Festuca Hallii ◽  
Grass Hay ◽  
Medicago Sativa L ◽  
Ad Libitum ◽  
Voluntary Intake

The in situ bag technique was evaluated as a method of predicting the voluntary intake and digestibility of forages. Nine feedstuffs including three cereal straws, three alfalfa (Medicago sativa L.) and grass hay mixtures, two alfalfa-grass silages, and a prairie (Festuca hallii L.) grass hay were each fed to five steers (350 ± 49.5 kg) at ad libitum and approximately maintenance feeding levels. Hays and silages were also fed at near the twice maintenance feeding level. Voluntary forage dry matter (DM) intakes ranged from 1.00 to 2.85% of body weight. Apparent forage DM digestibilities ranged from 37 to 64%. At the lower feeding level fractional rates of particulate passage through the digestive tract were higher (P < 0.05) for 37% DM silage (0.037 h−1) than for two of the straw-based diets (0.020–0.023 h−1). Particulate passage rates were not (P > 0.05) affected by feeding level. Predictions from in situ results were most accurate when 24 and 36 h degradation values were used to estimate DM digestibility (R2 = 0.92) and intake (R2 = 0.86), respectively. The neutral detergent fiber content of forage was equally well correlated with DM digestibility (R2 = 0.86) and voluntary DM intake (R2 = 0.85). Inclusion of information on rates of passage in prediction equations did not (P > 0.05) improve accuracies of predictions over those obtained using in situ results or chemical feed components. Key words: Steers, in situ, voluntary intake, digestibility, passage rates, prediction

scholarly journals Effects of fertilizer type and harvesting age on species composition, yield and chemical composition of natural pasture in the highlands of Ethiopia

2020 ◽  
Vol 21 (11) ◽  
Author(s):  
Shiferaw Yalew ◽  
Bimrew Asmare ◽  
Yeshambel Mekuriaw
Keyword(s):  
Chemical Composition ◽  
Species Composition ◽  
Dry Matter ◽  
Block Design ◽  
Relative Proportion ◽  
Sampling Site ◽  
Neutral Detergent Fiber ◽  
Dry Matter Yield ◽  
Natural Pasture ◽  
Forage Species

Abstract. Yalew S, Asmare B, Mekuriaw Y. 2020. Effects of fertilizer type and harvesting age on species composition, yield, and chemical composition of natural pasture in the highlands of Ethiopia. Biodiversitas 21: 4999-5007. The experiment was conducted to evaluate the effects of fertilizer type and harvesting age on species composition, yield, and chemical composition of natural pasture in the highlands of Ethiopia. The experiment was laid out in randomized complete block design with factorial arrangement of two factors (fertilizer and harvesting age) with five replications. The data collected from the current study were forage species composition, dry matter yield, and chemical composition of natural pasture at different ages of harvesting. Forage species composition was determined by taking representative samples and identifying species from each sampling site. The samples of natural pasture were harvested at 90 and 120 days of age, weighed, dried, and then ground after that subsamples were taken for analyses of dry matter (DM), crude protein (CP), ash, acid detergent fiber (ADF), neutral detergent fiber (NDF) and acid detergent lignin (ADL). All the collected data were subjected to GLM ANOVA procedures of SAS version 9.0. The result indicated that all species composition and dry matter yield were significantly affected (P<0.001) by fertilizer type and harvesting ages. Higher forbs (0.66%) were found in control plot at 90 days of harvesting age. Natural pasture harvested at 120 days of harvesting and urea fertilizer application results the highest dry matter yield (DMY) (8.26 t/ha) while the lowest level (3.20 t/ha) from unfertilized plot at 90 and 120 days of harvesting. The relative proportion of legumes in the natural pasture attained its climax stage at 90 days while grass attained at 120 days of harvesting. The highest mean DMY (6.24 tone/ha) was obtained at 120 days of harvesting and the lowest (4.71 ton/ha) at 90 days of harvesting. Among the chemical composition parameters, DM, ash and CP were significantly affected (P<0.001) by both fertilizer type and harvesting age. The content of CP and ash were increased with manure fertilizer at early harvest age and were decreased with delayed harvest age. The application of fertilizer type did not significantly affect (P>0.05) NDF content of the natural pasture rather affected by stage of harvesting (P<0.001). Regardless of DM yield, better quality pasture was recorded for early (90 days) harvesting age and use of compost recommended for future natural pasture improvements as use of chemical fertilizer is relatively expensive for the majority of smallholder farmers in the highlands.

Determination of forage yield and quality of mixtures of hairy vetch with some cereals (oat, barley and wheat) grown as catch crop

2017 ◽  
Author(s):  
Emine Budakli Çarpici
Keyword(s):  
Dry Matter ◽  
Agricultural Research ◽  
Forage Yield ◽  
Neutral Detergent Fiber ◽  
Experimental Plant ◽  
Catch Crop ◽  
Dry Matter Yield ◽  
Hairy Vetch ◽  
Area Index ◽  
Feed Value

This experiment was conducted to determine the effects of mixture rates of hairy vetch with oat, barley and wheat on dry matter yield and its quality and to determine the suitable mixture when grown as catch crop at Uludag University, Faculty of Agriculture, Agricultural Research and Application Center, Bursa Turkey during 2011-2012 and 2012-2013 growing seasons. The experimental plant entries were Menemen-79 variety of hairy vetch, Faikbey cultivar of oat, Akhisar-98 cultivar of barley and Flamura cultivar of wheat. Nine mixtures (25 % oat:75 % hairy vetch, 50 % oat:50 % hairy vetch, 75 % oat:25 % hairy vetch, 25 % barley:75 % hairy vetch, 50 % barley:50 % hairy vetch, 75 % barley:25 % hairy vetch, 25 % wheat:75 % hairy vetch, 50 % wheat:50 % hairy vetch, 75 % wheat:25 % hairy vetch) were used. Several parameters such as dry matter yield, leaf area index, light interception, crude protein content and yield; ADF (acid detergent fiber) and NDF (neutral detergent fiber) contents and relative feed value have been examined in the experiment. The highest dry matter yield was obtained from the mixtures of 50 % oat:50 % hairy vetch (12 040 kg ha-1) and 75 % oat:25 % hairy vetch (11 748 kg ha-1). According to the two-year results, the higher and quality hay yield (low in ADF and NDF values, high in relative feed value) was produced at 50 % oat:50 % hairy vetch mixture, and this mixture have been proposed to the experimental conditions due to its suitability.

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