تأثيراضافة السماد العضوي و اليوريا في نمو وحاصل نبات الباقلاء Vicia faba L.

Abstract

An experiment in pots was conducted to study the effect OF different levels of organic fertilizer and urea fertilizer and their interactions on growth and yield of broad bean plant , i.e. plant height , number of nodules , shoot dry weight , total yield.Organic fertilizer was added at a level of ( 0 , 1 , 2 , 3 and 4 ton/h. ) and five levels of urea fertilizer ( 0 , 25 , 50 , 75 and 100 kg/ Donum) to the soil before sowing ,.Results showed that 75 kg/D. of urea fertilizer gave an increase in plant height dry weight, number of nodules and dry weight , total seed dry weight. On the other side , it gave a decrease in soil pH compared to control treatment , that gave the lowest values for the above characters and high value of soil pH.The addition of organic fertilizer with 3 t/h resulted in all measured traits plant height, its dry weight, number of bacterial nods and its dry weight. and total seed weight with a decrease in soil pH compared with that plant not treated with organic fertilizer. Interaction of 75-urea with 3 t/h. organic fertilizer gave the highest values for all measured characters with the lowest value of soil pH