EFFECT OF ORGANIC FERTILIZERS AND HUMIC ACID ON PRODUCTIVITY, QUALITY AND STORABILITY OF GRAPES
SABRY NASIF GIRGIS;
Abstract
This study aimed to focus on effect of some sources of organic fertilizers (compost, chicken manure, and animal manure) as a partially replacement of mineral nitrogen fertilization and some concentrations of Humic acid (6, 9, and 12 liter / feddan) as a foliar application on productivity ,quality and storability of superior grape. The clusters were stored in a cooler at 28±2 days º C.
This experiment was executed in two successive seasons 2013/2014 & 2014/2015,and in a vineyard in Wadi El- Natroon , Beheira governorate, Egypt.
Some parameters were measured at harvest and postharvest as follows: Total yield (Kg/vine), Cluster number/vine, Wood weight, Cluster weight (g), Weight of 100 berries (g), Cluster length & width (cm), Berry length & width(cm), Brush length (cm), Pedicel length & width(mm), Tours width(mm), T.S.S (Brix ◦), Acidity% , T.S.S /acid ratio, Juice percentage , N P K percentage content in leaves, The Discarded berries percentage, Shattering berries percentage, Shrinkage berries percentage, Weight loss percentage, Total loss percentage.
The obtained results showed that, the application of humic acid with 9 and 12 litter with 100 % mineral source of nitrogen increased the pruning wood weight, total yield, weight of cluster, weight of 100 berries, juice percentage and decreased the number of clusters per vine. On the other hand, the application of 50% compost with 12 litter of humic acid increased the berry and brush length which might cause decreasing of shattering berries, while the application of 50% chicken manure with 9 and 12 litter of humic acid increased the pedicel length and weight. The postharvest results showed that the storability has been decreased by the using of mineral nitrogen sources fertilization. 100 % mineral nitrogen showed high values of weight loss percentage, discarded berries percentage, shattering berries percentage, shrinkage percentage, total loss and the changes of T.S.S and acidity. The use of humic acid with 100% mineral fertilization decreased the weight loss. The use of compost and animal manures with 6 and 9 litter of humic acid decreased the shattering percentage.
Key words:
Grapes - Vitis vinifera – Organic fertilizer – Quality – Productivity – Storage.
This experiment was executed in two successive seasons 2013/2014 & 2014/2015,and in a vineyard in Wadi El- Natroon , Beheira governorate, Egypt.
Some parameters were measured at harvest and postharvest as follows: Total yield (Kg/vine), Cluster number/vine, Wood weight, Cluster weight (g), Weight of 100 berries (g), Cluster length & width (cm), Berry length & width(cm), Brush length (cm), Pedicel length & width(mm), Tours width(mm), T.S.S (Brix ◦), Acidity% , T.S.S /acid ratio, Juice percentage , N P K percentage content in leaves, The Discarded berries percentage, Shattering berries percentage, Shrinkage berries percentage, Weight loss percentage, Total loss percentage.
The obtained results showed that, the application of humic acid with 9 and 12 litter with 100 % mineral source of nitrogen increased the pruning wood weight, total yield, weight of cluster, weight of 100 berries, juice percentage and decreased the number of clusters per vine. On the other hand, the application of 50% compost with 12 litter of humic acid increased the berry and brush length which might cause decreasing of shattering berries, while the application of 50% chicken manure with 9 and 12 litter of humic acid increased the pedicel length and weight. The postharvest results showed that the storability has been decreased by the using of mineral nitrogen sources fertilization. 100 % mineral nitrogen showed high values of weight loss percentage, discarded berries percentage, shattering berries percentage, shrinkage percentage, total loss and the changes of T.S.S and acidity. The use of humic acid with 100% mineral fertilization decreased the weight loss. The use of compost and animal manures with 6 and 9 litter of humic acid decreased the shattering percentage.
Key words:
Grapes - Vitis vinifera – Organic fertilizer – Quality – Productivity – Storage.
Other data
| Title | EFFECT OF ORGANIC FERTILIZERS AND HUMIC ACID ON PRODUCTIVITY, QUALITY AND STORABILITY OF GRAPES | Other Titles | تأثير بعض الاسمدة العضوية وحمض الهيومك على الإنتاجية والجودة والقدرة التخزينية لثمار العنب | Authors | SABRY NASIF GIRGIS | Issue Date | 2016 |
Attached Files
| File | Size | Format | |
|---|---|---|---|
| G12428.pdf | 323.63 kB | Adobe PDF | View/Open |
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