THE EFFECT OF AGRICULTURE METHODS AND PLANT DENSITY ON GROWTH AND YIELD OF GARLIC ( ALLIUM SATIVUM L. ) BY USING OF IRRIGATION DRIP SYSTEM IN A GYPSIFEROUS SOIL

Abstract

A field experiment was conducted in College of Agriculture / Tikrit University during 2010 – 2011 season ON Garlic ( Allium sativum L. ) to study the effect of two methods of agriculture ( raw and plot ) and three treatments of plants density ( 300000 , 600000 , 900000 plant / ha ) , The experiment was factorial according to split plot design with three replication results showed that was significant increment in agriculture method on raw significantly on plot in each head diameter , cloves weight , percentage of dry matter in cloves , head weight and total yield characters . whereas the plant density showed ( 300000 plant/ha ) significant increment in all yield characters except the total yield character , The increment of plant density was ( 900000 plant/ha ) . The interaction between agriculture method on raw with plant density of 300000 plant/ha significant increment in most studied characters except the total yield which increased on raw with plant density of 900000 plant/ha which there was not any significant difference in the interaction of every leaves number and percentage of cloves dry matter .