Co-Authors:
Raviv, M., Dept. of Environmental Horticulture, Agricultural Research Organization, Newe Ya'ar Research Center, Ramat Yishay, Israel
Medina, S., Dept. of Environmental Horticulture, Agricultural Research Organization, Newe Ya'ar Research Center, Ramat Yishay, Israel
Krasnovsky, A., Dept. of Environmental Horticulture, Agricultural Research Organization, Newe Ya'ar Research Center, Ramat Yishay, Israel
Ziadna, H., Dept. of Environmental Horticulture, Agricultural Research Organization, Newe Ya'ar Research Center, Ramat Yishay, Israel
Abstract:
Compost is a main source of organic matter (OM) and of nitrogen for organic farming in arid and semi-arid regions. An effort has been made to reduce nitrogen loss during composting of separated cow manure (SCM) using high C/N additives - wheat straw, (WS), grape marc (GM) and slightly acidic additive such as orange peels (OP). The resulting composts contained 2.63%, 2.84% and 2.39% N for the GM-SCM, OP-SCM and WS-SCM, respectively. Values of N loss from the raw mixtures were 18%, 5% and 2% for the three compost types, respectively. OM values were 70%, 57%, and 53% for the three compost types, respectively. Nutritional contribution of the composts was assessed using cherry tomato as a test plant, growing in the composts as growing media. Peat moss served as a control medium. The media were either unfertilized or fertilized with guano. Plant responses suggest that growth is mainly affected by nitrogen availability while flower production and fruit set is also affected by potassium availability. It was found that fertilization was not necessary for at least 2 months after planting for OP-SCM and WS-SCM.
תפריט נגישות
ניגודיות עדינה
מונוכרום
הדגשת קישורים
חסימת אנימציה
פונט קריא
סגור
איפוס הגדרות נגישות
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