Effect of planting date and phosphorus fertilizer on growth and yield of green pods on pea plant Pisum sativum L.

Abstract

Research carried out in the Technical Institute / Mosul , during autumn season 2007 and 2008 to study the effect of three sowing date 15/ 10 , 30/10 , 14/11, and three levels of phosphate fertilizer 10, 20, 30 kg P2O5 / donum addition to the treatment comparison (without fertilization) in the vegetative growth and yield of green pods of peas variety Mammoth Melting Sugar and experience in the factorial design sectors as random , full data has been recorded : plant height, number of branches, mild and dry weight of shoot , number of days to lighten 50% of flowers , number of pods / plant, length of pod, number of seeds in the pod, yield per plant, and the total yield per unit area. The results indicated that early sowing date 15/10 led to a significant increase of all the qualities compared with the late date 14/11 except number of seeds per pod, resulting in added phosphate fertilizer 30 kg P2O5 to increase significant in all the studied traits compared with the treatment comparison. The effect of interference results indicated that early sowing date 15/10 and adding phosphate fertilizer level at 30 kg P2O5 resulted in a significant increase of all studied traits, and by 67.5%, 45.5%, compared with the delayed sowing date and without phosphate fertilizer plant holds the two strands of one sum up the total unit area respectively .