Authors:
Djilani GHEMAM AMARA, ALIA Zeid, KHERRAZ Khaled, CHEMSA Ahmed Elkhalifa,
KHAZZANI Bachir, SENOUSSI Mohammad Mourad
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Abstract:
The aim of the study is to establish the influence of different organic manures with a different
level of nitrogen on the growth and productivity period (leaves area, plants height, number and
weight the tuber and production)of potato plants spunta variety. The experiment was laid out a
randomized complete block design (RCBD) with ten treatments (three manure treatment with
three levels of nitrogen), add the control treatment. Data collected were tested using analysis of
variance and significant differences among treatment means were separated using LSD at 0.05
probability. The results obtained from the study indicated highest percent emergence, leaves area
and height stems and characteristic yield was obtained under the chicken manure with first
nitrogen level. With sheep manure showed lower growth and yield indicators as compared to
those fertilized with chicken manure or chicken-sheep fertilizers with all levels N. As regards
levels of N in organic manures treatment, the biggest leaves area, height stems and characteristic
yield were obtained under the chicken and sheep fertilization in the first level N with no
difference height plants between levels N in treatment sheep manure. No significant differences
in tuber number were observed among the levels N. For the chicken-sheep manure, growth
characteristics were high in the third level of nitrogen, yield recipes at the second level of
nitrogen. Based on the results obtained it is evident that poultry manure as organic manure with 1
kg/ h protifert is a good factor of amelioration the growth and yield parameters of potato. |
