Nondormant Alfalfa Varieties for Arizona 2019

Alfalfa varieties differ in fall dormancy, defined as growth during the fall. Nondormant alfalfa varieties are usually planted in mild winter areas for their ability to grow in the fall. However, fall growth of nondormant alfalfa may be undesirable in areas subject to repeated frosts or freezes. Nondormant, very nondormant, and extremely nondormant alfalfa varieties (fall dormancy class 8, 9, and 10) are adapted to elevations below 4000 feet in Arizona. Other dormancy classes not included in this publication are moderately nondormant varieties (fall dormancy class 7) which may be grown from 3000 to 5000 feet, and semi-dormant and dormant varieties (fall dormancy 6 and below) which are adapted to colder winter areas above 4000 feet

Nondormant Alfalfa Varieties for Arizona 2017

2 p.Alfalfa varieties differ in fall dormancy, defined as growth during the fall. Nondormant alfalfa varieties are usually planted in mild winter areas for their ability to grow in the fall. However, fall growth of nondormant alfalfa may be undesirable in areas subject to repeated frosts or freezes. Nondormant, very nondormant, and extremely nondormant alfalfa varieties (fall dormancy class 8, 9, and 10) are adapted to elevations below 4000 feet in Arizona. Other dormancy classes not included in this publication are moderately nondormant varieties (fall dormancy class 7) which may be grown from 3000 to 5000 feet, and semi-dormant and dormant varieties (fall dormancy 6 and below) which are adapted to colder winter areas above 4000 feet

Nondormant Alfalfa Varieties for Arizona 2018

Alfalfa varieties differ in fall dormancy, defined as growth during the fall. Nondormant alfalfa varieties are usually planted in mild winter areas for their ability to grow in the fall. However, fall growth of nondormant alfalfa may be undesirable in areas subject to repeated frosts or freezes. Nondormant, very nondormant, and extremely nondormant alfalfa varieties (fall dormancy class 8, 9, and 10) are adapted to elevations below 4000 feet in Arizona. Other dormancy classes not included in this publication are moderately nondormant varieties (fall dormancy class 7) which may be grown from 3000 to 5000 feet, and semi-dormant and dormant varieties (fall dormancy 6 and below) which are adapted to colder winter areas above 4000 feet

Douple Cropping with Controlled Traffic Tillage

Double cropping barley and cotton, using a system of controlled traffic tillage, was compared to conventionally tilled, full-season cotton. In this test, the yields of the barley and late planted cotton were too low to be competitive with the full season cotton

Wheat and Barley Variety Test at the Bruce Church Range, Poston, 1987

A wheat and barley test on the Bruce Church Ranch, Poston, Arizona, La Paz County, harvested June 8 & 9, 1987, gave crop and variety performance differences under grower management conditions. The top yielding barley variety was Fiesta, 6990 lbs /ac. The leading durum varieties were Turbo, Gem and Aldura. Durum wheat Westbred 881 was highest in protein (13.7 %). In red wheat varieties, yields ranged from 4660 to 5750 lbs/ac. The top three varieties were Baker, Probred and Yecora Rojo. Baker was highest in protein (14.6 %), followed by Yecora Rojo (14.2%). Continued testing over several years is necessary to assess variety performance under grower management conditions

Renovating Alfalfa Stands in Arizona

2 pp.Introduction: Alfalfa is an important crop grown in Arizona with approximately 250,000 acres in production in 2011 and 2012 and 260,000 acres for 2013 (USDA, NASS 2013). A typical yield for Arizona alfalfa growers is approximately 8.2 tons per acre (USDA, NASS). In central Arizona where fields are irrigated, harvest typically starts in March and lasts until November, with majority of production occurring from March to mid-July. Central Arizona producers will typically keep stands for three to four years before rotating. Older alfalfa stands age and thin and will eventually decline in plant density and yield (Figure 1). Producers often wish to improve their stands by reseeding after a failed seeding, thinning, or summer scalding