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Open Access Publications from the University of California

Scholarly Works (24 results)

  • Book
  • Peer Reviewed
Farm (2019)
Contingency for drought should be part of every grower’s business plan in California. This publication outlines a range of strategies to consider for growing vegetables under a limited water supply: Evaluate Options for Maximizing Production and ProfitabilityIncrease Irrigation EfficiencyReduce Evaporation and Transpiration LossesTake Advantage of Winter Rainfall InfiltrationDevelop and Use Alternate Water Supplies
    Cover page: Drought Tips for Vegetable Production
    • Book
    • Peer Reviewed
    Farm (2019)
    When water is in short supply, growers must estimate how much water their crops require, as well as how much water is available, to determine how much land can be planted and irrigated. Growers can arrive at these estimates by performing calculations that take into account crop water requirements such as evapotranspiration and salt management; available irrigation water; and available non-irrigation water sources such as rainfall, fog, and shallow groundwater. Performing these calculations will allow growers to make informed decisions about how many acres to plant.
      Cover page: Drought Planning for Vegetable Production
      • Book
      • Peer Reviewed
      Farm (2018)
      Los cultivos de riego con frecuencia pueden causar la acumulación de sales en el perfil del suelo. Estas sales acumuladas pueden dañar los cultivos si no son filtradas por debajo de la zona de las raíces. Esta publicación aborda diferentes formas en la que se puede llevar a cabo la filtración.
        Cover page: Consejos sobre la sequía: El manejo de las sales por medio de la filtración
        • Book
        • Peer Reviewed
        Farm (2015)
        Irrigating crops can often cause salts to build up in the soil profile. These accumulated salts can damage crops if they are not leached below the root zone. Leaching is one beneficial technique for removing salts, but only if the soil has adequate drainage.
          Cover page: Drought Tip: Managing Salts by Leaching
          • Article
          • Peer Reviewed
          California Agriculture, Volume 71, Issue 2 (2017)

          Increased regulatory activity designed to protect groundwater from degradation by nitrate-nitrogen (NO3-N) is focusing attention on the efficiency of agricultural use of nitrogen (N). One area drawing scrutiny is the way in which growers consider the NO3-N concentration of irrigation water when determining N fertilizer rates. Four drip-irrigated field studies were conducted in the Salinas Valley evaluating the impact of irrigation water NO3-N concentration and irrigation efficiency on the N uptake efficiency of lettuce and broccoli crops. Irrigation with water NO3-N concentrations from 2 to 45 milligrams per liter were compared with periodic fertigation of N fertilizer. The effect of irrigation efficiency was determined by comparing an efficient (110% to 120% of crop evapotranspiration, ETc) and an inefficient (160% to 200% of ETc) irrigation treatment. Across these trials, NO3-N from irrigation water was at least as efficiently used as fertilizer N; the uptake efficiency of irrigation water NO3-N averaged approximately 80%, and it was not affected by NO3-N concentration or irrigation efficiency.

            Cover page: Field trials show the fertilizer value of nitrogen in irrigation water
            • Book
            • Peer Reviewed
            Farm (2011)
            Basic information for commercial cilantro producers, including information on crop climatic requirements, varieties, planting, fertilization, harvest, and marketing channels.
              Cover page: Cilantro Production in California
              • Book
              • Peer Reviewed
              Farm (2008)
              Basic information for commercial cabbage producers, including information on crop climatic requirements, varieties, planting, fertilization, harvest, and marketing channels.
                Cover page: Cabbage Production in California
                • Book
                • Peer Reviewed
                Farm (2008)
                Basic information for commercial artichoke producers, including information on crop climatic requirements, varieties, planting, fertilization, harvest, and marketing channels.
                  Cover page: Artichoke Production in California
                  • Book
                  • Peer Reviewed
                  Farm (2011)
                  Basic information for commercial fresh-market bulb onion producers, including information on crop climatic requirements, varieties, planting, fertilization, harvest, and marketing channels.
                    Cover page: Fresh-Market Bulb Onion Production in California
                    • Book
                    • Peer Reviewed
                    Farm (2011)
                    Basic information for commercial growers, including climatic requirements, varieties, planting, fertilization, harvest, and marketing channels.
                      Cover page: Green Onion Production in California
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