Effect Of Soil, Irrigation And Weeding On Production Of Cypress (Cupressus Sempervirens L.) Seedling In Shahrposht Nursery, Nowshahr
2006
Tabari, M., Associate Professor, Faculty of Natural Resources, Univ. of Tarbiat Modarres, Noor, Iran. | Poormajidian, M. R., Assistant Professor, Faculty of Natural Resources, Univ. of Mazandaran, Sari, Iran. | Alizadeh, A. R., Ranges and Forests Organization, General Office of Natural Resources of Nowshahr, Iran.
Effect of 4 soil types, 3 irrigation regimes and 3 weeding levels on seedling production of cypress \{Cupressus sempervirens L. var. horizontalis Mill. (Gord)\}, with factoriel experiment and split-split plots design, were studied in Shahrposht nursery (Nowshahr, north of Iran). Sound seeds collected in October were sown in April. At the end of the first growing season, the number of survived seedlings and their height growth were greater on soils of sand-loam-clay (C) than loam-clay (A), sand (B) and loam (D). The greatest seedling frequency belonged, respectively to 8-, 12- and 4-day irrigation periods. Seedling number, as well as height growth, was not different in three weeding levels (20-, 30- and 40-day). Seedling number was influenced as separate by soil or watering. Height growth was influenced both as separate and also as interaction of treatments. From the research it can be deduced that sand-loam-clay soil (C), 8-day irrigation, 20- and 30-day weeding are best treatments for production of Cupressus sempervirens L. seedlings in this nursery. From economical side it is better to use the 30-day weeding rater than 20-day one.
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