تأثير التسميد العضوي و المعدني في بعض الصفات النمو و الحاصل لنبات البطاطا Solanum tuberosum L. صنف سفران

Abstract EN

An experiment was conducted during the spring seasons of 2014 in private field in Babil province , Al-Hashimia district, to study the effect of organic fertilization (Residues of date palm fronds ) included three levels of organic fertilizer ( Zero, 16 , 32 ton.hectar-1) and the mineral fertilization ( N,P,K) included four levels of mineral fertilizer N,P,K ( Zero ,50% , 75% and 100% of the recommended quantity) on some growth and yield characteristics of potato var.

Safaran.

This experiment was designed according to (R.C.B.D) with three replicates.

Using organic and mineral fertilizer showed a significant effect in growth and yield characteristics.

.

The treatment (32 ton.hectar- 1OF.+ 100% of N,P,K ) and (16 ton.hectar-1 OF + 100 % of N,P,K ) gave highest average in the percentage of plant emergence reached 96.88% as compared with control treatment.

Also the treatment (32 ton.hectar-1 OF + 100% of N,P,K) gave highest average in number of leaves reached 63.93 as compared with control treatment.

While the treatment (16 ton.hectar-1 OF + 100% of N,P,K) and (16 ton.hectar-1 OF + 50 % of N,P,K) gave highest average in total soluble solids reached 6.87 % as compared with control treatment.

The treatment (16 ton.hectar-1 OF + 100% of N,P,K) gave highest average in qualitative density of tubers reached 1.86 g /cm2 as compared with control treatment.

The treatment (32 ton.hectar-1 OF + 75% of N,P,K) gave lowest average in percentage of non marketable yield reached 2.75 % as compared with control treatment.