RESPONSE OF SOME POTATO CULTIVARS TO ALTERNATIVES TO MINERAL FERTILIZATION

Document Type : Research articles.

Authors

Department of Horticulture – Faculty of Agriculture – Al-Azhar University , Assiut Branch

Abstract

Two field experiments were conducted during 2013 and 2014
summer seasons at a special Farm in El-Basunia Village, Fayoum
District, Al-Fayoum Governorate, Egypt, to study the effect of Eight
fertilization treatments i.e. Chicken manure, Cow manure, Chemical
fertilizer, bio-fertilizer, 1/2 NPK + Chicken manure, 1/2 NPK + Cow
manure, 1/2 NPK + bio-fertilizer and control (without fertilization ) ,
on yield and quality of four potato cultivars i.e. Spunta , Nicola ,
Hermes and Lady Rosetta .
The added rates organic fertilizer 10 ton / fed. chicken manure ,
10 ton / fed. cow manure , 160:175 (N) unit per fed 75 (P) unit per fed
75 (K) unit per fed.
The results indicated that potato plants fertilized with half
recommended dose of NPK + Chicken manure treatments gave
significant effects on total yield of potato tubers (ton / fed.), weight of
non- marketable tubers (kg / fed.), total yield of potato tubers (g /
plant), number of potato tubers per plant ,crud protein content (%),
total carbohydrates content (%), and total sugars content (%) .
The results indicated that the potato cultivars varied significantly
where, Spunta exceeded other cultivars in all characters studied.
The type spunta and the following type Nicola gave the highest crop < br />for fed in ton and for plants in (kg ) in each of the two seasons , type
spunta the best in protin rate and the type Hermes the best in
carbohydrate total in tubers , the type Nicola the best in sugar the
character of crop was effected and its continents and so the quality ,
and the chemical for potatoes tubers in the fourth characters for
potatoes significant with the treatment fertilizers the highest value for
all characters under studying and so that with fertilization with half
recommended mineral fertilizer chicken manure fertilizer in all both to
season but the treatment of comparison without fertilization led to
short significant for all this characters in both seasons

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