Download or read book Effects of Cutting Intervals on Yield and Quality of Alfalfa Medicago Sativa L written by Nurul Akbar Ambi and published by . This book was released on 2006 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Cutting Schedule on Quality and Yield of higher Quality Alfalfa Cultivars in a Mediterranean Environment written by Brenda Perez and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Producing high yields of dairy-quality alfalfa (Medicago sativa) hay is largely hindered by the increased levels of lignin and low fiber digestibility as the crop matures. Specific higher quality varieties tested here have the potential to increase yields unhindered by the penalty in quality that typically occurs with late maturity. Studies were conducted in Davis and Parlier, CA in 2017-2019 in irrigated trials using a split-plot design with harvest schedules as main plots and varieties as sub-plots utilizing semi- dormant (Fall Dormancy 6) and non-dormant (FD 8-9) lines. Long cutting intervals (37 to 40 d) resulted in significantly higher yields than a 'normal' schedule (28-29 d), indicating the yield reward for delayed cuttings. Higher quality varieties harvested under a longer cutting interval yielded 13 to 15% higher and had similar NDFD levels to conventional varieties cut under a normal cutting schedule. The results from this study demonstrate the potential of new higher quality alfalfa varieties in a Mediterranean environment as a potential tool for delaying harvests, increasing yields, while maintaining high digestibility (NDFD) without the dramatic increase in fiber and lower digestibility that typically accompanies late harvests.
Download or read book Effects of Managements and Varieties on Yield and Quality of Alfalfa Medicago Sativa L Forage written by James Enos Sumberg and published by . This book was released on 1977 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Influence of Cutting Treatments on Yield and Quality of Two Alfalfa Medicago Sativa L Varieties written by David Contreras and published by . This book was released on 1965 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: A field experiment was conducted to study the influence of cutting treatments on the yield and quality of non-irrigated alfalfa in western Oregon. Spring clipping treatments included (1) not clipped, (2) clipped when 6 inches high and (3) clipped when 12 inches high. The hay harvest criteria were (1) near full light interception by the vegetative canopy, (2) crown bud stage and (3) one-tenth bloom stage. Combinations of these criteria included first hay harvest based on light interception followed by either of the other criteria at subsequent harvests, and first harvest based on crown bud development in combination with one-tenth bloom criterion for subsequent harvest. Two alfalfa varieties, Vernal and Du Puits, were subjected to each of the 18 treatments (6 x 3 in all combinations). Results of one growing season indicated that the influence of spring clipping was not reflected in yield of dry matter (hay) except at the relatively small third harvest when spring clipping showed a deleterious effect. The yields obtained by the spring clipping were sufficient to offset the reduction at the third hay harvest. It was observed that the total yields for the season did not differ. Cutting at the one-tenth bloom stage showed an advantage in yield but with a greatly reduced crude protein percentage. Cutting on the basis of nearly complete light interception resulted in harvest at an immature stage in early May and at a very mature stage in late season. Highest yields, with leafiness and crude protein suitable for high quality hay, were obtained by cutting at the crown bud stage throughout the season, or by taking the first harvest on the basis of light interception and subsequent harvests on the basis of either crown buds or one-tenth bloom. The varieties produced approximately the same total for the season. Vernal was slightly leafier than Du Puits at the second and third hay harvests. A highly significant negative correlation was found between yield of dry matter and percentage protein and between yield of dry matter and leaf-stem ratio. The correlation between percentage protein and leaf-stem ratio was significant and positive.
Download or read book Age and Time of Year Effects on Alfalfa Medicago Sativa L Quality and Morphological Development written by Bernard Awa Kalu and published by . This book was released on 1976 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Three Harvest Schedules on Forage Yield Quality and Persistence of Six Alfalfa Medicago Sativa L Cultivars written by Ike Di Chukwu Obierika and published by . This book was released on 1980 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Productivity Total Nonstructural Carbonhydrates in Roots and in Vitro Dry Matter Disappearance of Alfalfa Medicago Sativa L Given Different Four cutting Systems Under Three Different First cutting Dates written by Jae Sun Lee and published by . This book was released on 1973 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Various Third Cutting Dates on Subsequent Production and Carbohydrate Reserves of Alfalfa Medicago Sativa L written by James Lawrence Yager and published by . This book was released on 1968 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Stand Density on Alfalfa Medicago Sativa L Morphology Yield and Quality written by Doo-Hong Min and published by . This book was released on 1994 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effect of Cutting Interval on the Relative Performance of Pasture and Hay type Alfalfa Varieties written by Marion Samuel Offutt and published by . This book was released on 1967 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Influence of Cutting Frequency on Dry Matter Yield and Root Reserves of Alfalfa Medicago Sativa L written by Sheo Darshan Rai and published by . This book was released on 1970 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Establishment Method and Seeding Date Effects on Alfalfa Yield and Quality written by Michael Dean Hoy and published by . This book was released on 1998 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt: Weed control during alfalfa (Medicago sativa L.) establishment is a primary concern of Midwest forage producers. Companion crops, such as oat (Avena sativa L.), have been used for alfalfa establishment to increase first year forage yields and decrease weed pressure and erosion risk. Using herbicides to establish alfalfa without a companion crop has also been effective. The purpose of this study was to evaluate eight establishment methods and determine their influence on dry matter production, botanical composition and herbage quality during the establishment year and the year following establishment.
Download or read book The Effect of Time of Cutting Upon the Yield and Quality of Alfalfa Hay written by Dudley Bertie David Moses and published by . This book was released on 1924 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Low Lignin Alfalfa Cutting Management Study written by Xuan Xu and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Alfalfa (Medicago sativa L.) is the fourth most valuable cash crop in the U.S., following corn, wheat, and soybean, and its production is vital to sustain the dairy, beef, and hay industries. As the world population increases alongside environmental degradation and water scarcities, identifying monthly climate variables related to alfalfa production can provide growers and researchers more time to deal with the effects of climate change. The purpose of Chapter 1 was to propose a statistical learning method to investigate, access, and predict the relationship between the alfalfa yield and monthly climate information with much larger numbers of variables in the state scale. To address the high-dimensionality of monthly climate variables, we employed a penalized regression model, called Lasso. Less than six relevant climate variables (i.e. monthly maximum and minimum temperature, and monthly precipitation) were identified as important predictors for alfalfa yields in each state. It was also shown that at least one of climate variables in June, July, and August was highly correlated to alfalfa yields. Reduction of lignin level in the forage legume alfalfa by the conventional breeding technology results in increased digestibility and may extend peak harvest dates by up to 10 days. This could benefit alfalfa growers by avoiding undesirable weather conditions, such as heavy rain, and increasing dry matter yield and nutritive values. The objective of Chapter 2 was to evaluate field performance and cash value of low lignin and reference variety under a four-cut system. The experiment was a split-plot design with a randomized complete block, the whole plot factor with two levels of variety and the subplot factor with six levels of harvest schedule. Forage yield differences among harvest schedules were more pronounced than yield differences between two varieties. Harvest interval had a significant effect on the nutritive value of alfalfa and a more substantial effect than variety selection. The nutritive value of low lignin alfalfa variety was significantly greater than the conventional variety. The purpose of Chapter 3 was to compare forage yield and nutritive value of low lignin alfalfa and two reference varieties subjecting to two harvest intervals and three seeding rates. The experimental design was in a split-split plot arrangement with four replicates, where harvest intervals (28-day and 35-day) were assigned to whole plots, seeding rates were subplots, and varieties were sub-subplots. The weighted mean nutritive value was applied to two production years of 2016 and 2017. Hi-Gest 360 (low lignin alfalfa) provided similar yield potential and increased nutritive value compared to two reference varieties. Harvest interval had a large effect on nutritive value and a more significant effect on alfalfa dry matter yield than variety selection. Seeding rate did not affect alfalfa yield and nutritive value. Based on two production year research in Manhattan, KS, the low lignin alfalfa variety under a shorter harvesting interval (every 28-day) appears be profitable management practice regardless of seeding rate.
Download or read book The Influence of Seeding Rate on Plant Population Yield and Quality of Two Alfalfa Medicago Sativa L Varieties written by Madhat M. Al-Hassani and published by . This book was released on 1965 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: A field study was conducted in the Willamette Valley near Corvallis, Oregon, to determine the influence of seedling rate, drill row spacing, grass association, and variety on the yield of dry matter and quality (crude protein content and leafiness) of alfalfa. Treatments included seeding rates of 7.5, 10, 15 and 20 pounds per acre in various combinations with row spacings of 3, 6 and 12 inches. Orchardgrass (Dactvlis glomerata L.) was included tn three treatments. Complete data were obtained for three harvests and yield data only for an aftermath harvest. Alfalfa varieties were Vernal and DuPuits. Plant population and stem numbers per unit area increased with increasing seeding rates and with closer row spacing, but stem size, dry weight of the stems, leafiness and crude protein were not affected by seeding rate or row spacing. Grass grown in association with alfalfa did not influence any of the characteristics studied except for an increase in stem size at second harvest and increased protein content of the alfalfa at first harvest. Vernal and DuPuits yielded the same weight of dry material for the season. Vernal maintained a higher plant population, more stems per square foot at each harvest and a higher percentage of leaves than DuPuits. Stem size and weight and crude protein content of whole plants was higher in DuPuits than in Vernal. Both varieties decreased in yield, plant population, stem size and stem weight with each successive cutting. Stem number per square foot and per plant increased with each successive cutting. It was concluded that seedling rates from 7.5 to 20 pounds per acre and row spacings up to 12 inches had very little influence on quantity and quality of alfalfa hay production.
Download or read book Influence of Cutting Frequency and Starter Fertilizer on the Yield and Protein Production of Alfalfa Medicago Sativa L written by and published by . This book was released on 1970 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Alfalfa Management Guide written by D. J. Undersander and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Alfalfa Management Guide is designed especially for busy growers, with to-the-point recommendations, useful images of diseased plants and pests, and quick-reference tables and charts. Revised in 2011, this edition of Alfalfa Management Guide covers the latest strategies for alfalfa establishment, production, and harvest-soil testing, fertilizing, integrated pest management, rotation, and more.
