Regulated deficit irrigation reduces water use of almonds without affecting yield
Autor: | W Stewart, A Fulton, W Krueger, B Lampinen, K Shackel |
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Jazyk: | angličtina |
Rok vydání: | 2011 |
Předmět: | |
Zdroj: | California Agriculture, Vol 65, Iss 2 (2011) |
Druh dokumentu: | article |
ISSN: | 2160-8091 0008-0845 |
DOI: | 10.3733/ca.v065n02p90 |
Popis: | A plant-based regulated deficit irrigation (RDI) experiment in the northern Sacramento Valley determined that crop consumptive water use and irrigation could be reduced without significant detrimental effects on almond production. Tree stress was measured by recording midday stem water potential, a direct measure of tree water stress. With a water stress level of -14 to -18 bars during the hull-split period, average annual water savings were about 5 inches. Over 5 years, no significant yield reductions were observed, although average kernel weight was slightly lower. The results suggest that water savings can be achieved without affecting yield, even in soils with low water-holding capacity. |
Databáze: | Directory of Open Access Journals |
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