تأثير بعض الأسمدة العضوية في إنتاجية درنات البطاطا (صنف مارابيل)‎

Abstract EN

This Research work was carried out in the village of Bunech in (Idleb) during the spring cropping of 2008/2009 for two seasons .

The foliar spreading of the potato plants showed a clear effect on growth and production.

the foliar application with organic fertilizers compounds gave an increase in plant height foliage area and efficency of photosynthesis.

Also there was an increase in the productivity of the plants in the unit area by increasing the number of foliar application.

The heighest increase obtained from the third foliar application (T3 treatment).So the increase in production varied by variation of the content of applied organic compond.

Also it gave an increase in the amont of of tubers which were prepared for Farm (CLASS .A) according to the General Organization for Seed Multiplication which will be distributed to the farmers in the autumn.