Goss’s bacterial wilt and leaf blight
(Goss’s wilt) was first recorded in Nebraska in the late 1960s
and is now distributed widely in most states throughout
the Corn Belt. The disease was first detected on field corn
in southeastern Arizona in 2018.
Corn Earworm Management on Desert Produce - October 2018
Proper irrigation management requires that growers assess their irrigation needs by taking measurements of various physical parameters. Some use sophisticated equipment while others use tried and true common sense approaches. Whichever method used, each has merits and limitations. In developing any irrigation management strategy, two questions are common: “When do I irrigate?” and “How much do I apply?” This bulletin deals with the WHEN.
Nutrient deficiencies can be identified in field through visual observations. However, additional analysis, either plant or soil testing is often necessary to confirm nutrient stress. The following is a quick-reference flow chart that can be used in field to identify potential nutrient deficiencies. Each nutrient has unique deficiency symptoms. Deficiencies will appear in many ways. It can be confused with other plant problems like pathogens or spray damage. But nutrient deficiencies can often be recognized because they tend to form symmetrical patterns, where both sides of leaf or plant parts show the same pattern.
Forage sorghums are warm-season, annual grasses that have the potential to produce large amounts of nutritious forage during summer months, especially in lower-elevation deserts, like central Arizona. If managed properly , sorghum can be used as supplemental feed during times of inadequate forage production or can be used as an emergency , late-planted crop to replace a primary crop that has been damaged by wind, hail or drought early in the growing season.
One of the challenges in using surface irrigation systems is determining the effective amount of water applied to a field. To get a good estimate, you must first calculate the gross amount of water applied and then, taking into system efficiencies, determine the amount of effective water applied (what the plants actually receive).
Measuring Water Flow in Surface Irrigation Ditches and Gated Pipe
Measuring water in surface irrigation systems is critical for peak efficiency management. Irrigation management decisions should be made based on the amount of water applied and how this relates to the consumptive use demands of the plants and the soil water holding capacity.
Determining the Amount of Irrigation Water Applied to a Field
Critical to any irrigation management approach is an accurate estimate of the amount of water applied to a field. Estimating the amount of water applied to a field or to a set is fairly easy for surface systems.
Grain sorghum (milo) is a warm season, annual grain crop. It is more resistant to salt, drought, and heat stress than most other crops. Nevertheless, highest yields are obtained when stresses are minimized. This Article give some suggestion on planting, fertilizing, irrigation and other aspects of growing.