نتایج جستجو برای: forest nurseries
تعداد نتایج: 109754 فیلتر نتایج به سال:
چکیده ندارد.
Seedling production nurseries have been receiving much attention because of increasing demand for seedlings. In sub-Saharan Africa studies showed over 50% smallholder seedlings planted were sourced in tree nurseries. This has caused a rise need to improve quality especially focused on level. The focus most early growth performance selected key species important either commercial plantation or a...
The growing demand in wood energy requires mechanisms of production the seedlings with a view to proceed reforestation answer needs populations. study evaluates germination and growth Acacia auriculiformis two types substrates by soilless technique. seeds A. species have been collected Democratic Republic Congo sent at Bateke Brazzaville Forest Plantations Society (SPF2B-nu...
The studies were conducted in various ecological points of Ukraine (western and northern part the Forest-Steppe, Southern Polissia) to examine bioecological features Pyrrhalta viburni Paykull develop measures reduce its harmfulness system fruit decorative gardening. purpose study was viburnum leaf beetle on plants Viburnum L. genus elements control technology (selection species, varietal compos...
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