Drought Irrigation Strategies for Alfalfa
Author:
Publisher: UCANR Publications
Published:
Total Pages: 10
ISBN-13: 1601077416
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Author:
Publisher: UCANR Publications
Published:
Total Pages: 10
ISBN-13: 1601077416
DOWNLOAD EBOOKAuthor: James Adolph Radawich
Publisher:
Published: 2018
Total Pages:
ISBN-13: 9780438929869
DOWNLOAD EBOOKAlfalfa producers in many irrigated regions must develop strategies to maximize water productivity (kg/ha per mm of water), given the reality of water supply variations caused by periodic droughts, environmental regulations, or water transfers to cities, to transfer to other crops, or for environmental needs. Climate variability and change further exacerbates these uncertainties. Partial yields may be feasible for alfalfa under deficit irrigation, unlike other crops where complete failure is likely, or fallowing is required. Summer deficit irrigation or mid-season water cut-off utilizing irrigation systems with greater efficiency, such as subsurface drip irrigation (SDI) may be practical solutions to easing seasonal water supply fluctuations and restrictions. Breeders have developed cultivars with putative drought tolerance which could play an important role in a future with unreliable water supply. The objective of this research was to determine the possible interaction between cultivar and deficit irrigation when water was applied using SDI technology. Fifteen commercial or newly released alfalfa cultivars were established in fall 2014 at Davis, CA using a split plot design with four replications with four different irrigation regimes utilizing SDI. Irrigation treatments were: 1) Applications of the full water requirements of the crop -100% of seasonal ET[subscript c], supplied 2) 75% of seasonal ET[subscript c] with an August cutoff, 3) 75% of seasonal ET[subscript c], -fully irrigated to 50% of seasonal ET[subscript c], then 1⁄2 of full ET[subscript c] supplied for the remainder of the season, and 4) 50% of ET[subscript c] –with a July cutoff. Over three years of data collection (2015-2017), yields averaged 80% of fully-irrigated plots when receiving 50% water application and averaged of 96% of the fully-watered yields at 75% of water applications to fully match ET[subscript c]. The results showed that varieties differed significantly in yield potential (P
Author: Charles Gebbes Summers
Publisher: UCANR Publications
Published: 2008
Total Pages: 388
ISBN-13: 9781601076083
DOWNLOAD EBOOK[A publication designed to provide detailed, scientifically-based comprehensive information about the growth, production, management, and utilization of alfalfa grown under irrigation].
Author: Denise McWilliams
Publisher:
Published: 2002
Total Pages: 3
ISBN-13:
DOWNLOAD EBOOKAuthor: Samuel Fortier
Publisher:
Published: 1940
Total Pages: 36
ISBN-13:
DOWNLOAD EBOOKAuthor: Steve Orloff
Publisher:
Published: 2015
Total Pages:
ISBN-13:
DOWNLOAD EBOOKDrought conditions require a whole new approach to crop production, and that includes alfalfa. Learn how to keep alfalfa crop losses to a minimum under a limited-water regime.
Author: Samuel Fortier
Publisher:
Published: 1909
Total Pages: 48
ISBN-13:
DOWNLOAD EBOOKAuthor: Franklin Stewart Harris
Publisher:
Published: 1921
Total Pages: 40
ISBN-13:
DOWNLOAD EBOOKAuthor: D. J. Undersander
Publisher:
Published: 2011
Total Pages: 0
ISBN-13: 9780891181798
DOWNLOAD EBOOKThe 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.
Author: Richard L. Snyder
Publisher:
Published: 1989
Total Pages: 28
ISBN-13:
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