Abstract. In the last decade in Italy, fertigation has been increasing in vegetable crops production in both green-house and in open field cultivation. Fertigation, combining irrigation and fertilization, results effecti- vely in increasing both water and nutrient efficiency when correctly applied. Besides improving yield and quality of the crops and helping to minimize manage- ment costs, fertigation reducing mineral nutrient sup- ply is also beneficial for the environment by minimi- sing mineral leaching and nutrient losses. Application of low concentrations of nutrients results in lower accumulation of harmful compounds such as nitrates from nitrogen application. Correctly applied fertigation requires knowledge of both water and nutrient needs of the species and the characteristics of the soil. Fertigation could be applied to any irrigation system although the highest efficiency is reached by microirri- gation systems such as drip irrigation and sub-irriga- tion. In this paper, all parameters involved in fertiga- tion management are discussed, and information for a correct application of the technique are given. The nitrogen, phosphorous and potassium mineral needs of the most important vegetable crops are reported; daily elemental uptake of tomato for both processing and fresh market, eggplant, melon and lettuce are discussed. In addition to advice for an effective ferti- gation application, advantages and disadvantages are also analysed. References listed at the end of the paper can provide for further subject information.

La fertirrigazione in orticoltura

SAMBO, PAOLO;
2005

Abstract

Abstract. In the last decade in Italy, fertigation has been increasing in vegetable crops production in both green-house and in open field cultivation. Fertigation, combining irrigation and fertilization, results effecti- vely in increasing both water and nutrient efficiency when correctly applied. Besides improving yield and quality of the crops and helping to minimize manage- ment costs, fertigation reducing mineral nutrient sup- ply is also beneficial for the environment by minimi- sing mineral leaching and nutrient losses. Application of low concentrations of nutrients results in lower accumulation of harmful compounds such as nitrates from nitrogen application. Correctly applied fertigation requires knowledge of both water and nutrient needs of the species and the characteristics of the soil. Fertigation could be applied to any irrigation system although the highest efficiency is reached by microirri- gation systems such as drip irrigation and sub-irriga- tion. In this paper, all parameters involved in fertiga- tion management are discussed, and information for a correct application of the technique are given. The nitrogen, phosphorous and potassium mineral needs of the most important vegetable crops are reported; daily elemental uptake of tomato for both processing and fresh market, eggplant, melon and lettuce are discussed. In addition to advice for an effective ferti- gation application, advantages and disadvantages are also analysed. References listed at the end of the paper can provide for further subject information.
2005
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/1427537
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