Author

University of Al-Qadisiya College of Agriculture

Abstract

This Study has been conducted at a laboratory college of Agriculture of Al – Qadisiya – University .
The Result show that there is a significant effect of Ricinus communis and Eucalyptus sp. and Trichoderma harzianum in Potato Dextrose agar (PDA) and the hot water extraction is more effective than cold water extraction . So the fungi spores have suspension of a significant effect on the growth indicators for Ricinus communis in the field

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