EFFECT OF HUMIC ACID, COMPOST AND BIOFERTILIZATION ON FRUITING OF SUPERIOR SEEDLESS GRAPEVINES | ||
| Arab Universities Journal of Agricultural Sciences | ||
| Article 13, Volume 24, Issue 1, March 2016, Pages 169-184 PDF (138.23 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ajs.2016.14193 | ||
| Authors | ||
| EL-Mamlouk E. A.H.* ; Refaai M. M.; Abdelaziz A. M.R.A. | ||
| Central Lab. of Organic. Agric. ARC. Giza, Egypt | ||
| Abstract | ||
| Superior grapevines fertilized with compost, biofertilizers namely (Bacillus megatherium, Bacillus curculanse and Azotoacter Chroococcum), humic acid and two slow release fertilizers namely ( rock phosphate and feldspar ) as a partial replacement of mineral N fertilizers during 2013 and 2014 seasons. Using all substitutes of mineral N fertilizers was favourable than using mineral N alone in enhancing all growth characters, total chlorophylls, nutrients, yield and berries characteristics. Both nitrite and nitrate in the juice were greatly declined in all N management treatments that included the application of all N sources. The best results with regards to yield and berries characteristics of Superior seedless grapevines were recorded on vines that received 60g N, 60g P and 120g K/ vine/ year ( mineral sources) plus compost II ( 40% cattle manure + 60% rice straw ) at 16 kg./ vine+ the three biofertilizers namely Bacillus megatheium, Bacillus circulanse and Azotobacter chroococcum + humic acid each at 10ml./ vine/ year. | ||
| Keywords | ||
| grape; Superior grapevines; compost; biofertilizers; Humic acid | ||
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