تأثير مستويات مختلة من التسميد النتروجيني و الفوسفاتي و البوتاسي على محصول البطاطا لموقعين مختلفين

الملخص EN

A field experiment was conducted on Potato crop( Solanum tubersom L.) variety Desiree in two different locations Abi Garaq and Sadat Al-Hindia west of Hilla city in the year of 2013to study the evaluation efficiency of NPK under five levels of nitrogen (0,30,60,120,160) kg .N .ha-1 , of phosphorus ( 0,40,80,120,180) kg.P2O5.ha-1 and potassium ( 0,40,80,120,180) kg.

K2O.ha-1 .

14 treatment contains five different levels of nitrogen , phosphorus and potassium were studied, using Randomized Complete Block Design(R.C.B.D)with factorial experimental and three replications .

The results revealed that the best fertilizer treatment of NPK was ( 60 kg N.

.ha-1) , (80kg.

P2O5.

ha-1) , (120 kg.

K2O.

ha-1) which gave a higher potato yield of (17.84 ton .

ha-1 ) in Abi Garaq location , while the best fertilizer treatment was ( 60 kg.N.

ha-1 ) ,(80kg.

P2O5.

ha-1 ) ,(80kg.

K2O.

ha-1 )which gave a higher tuber yield of (11.120 ton.

ha-1 ) in Sadat ALHindia location .

The higher mean yield a achieved in Abi Garaq was ( 13.788 ton.ha-1 ) .The interaction between locations and levels fertilizers of NPK indicated significant difference in tuber yield of potato.