A single foliar application brings a real Bonus™
A single foliar application of Haifa Bonus 12-2-44 increased potassium (K) level in leaves and fruit size distribution
|
Crop/cultivar |
Citrus/ Newhol (an early yielding navel) |
|---|---|
| Country / location | Israel / Kibbutz Hatzor |
| Objectives | Increase fruit size at early season |
| Haifa product tested | Haifa Bonus™ 12-2-44 |
| Application method | Foliar nutrition |
| Tested treatment | 1 x foliar feeding with Haifa Bonus 12-2-44 @ 9% conc. & 3500 lit./Ha |
| Control treatment results | 22% fruit >75mm Ø; Total yield = 64 MT/Ha K conc. in leaves = 1.17% Grower’s revenue from yield: 11,970 US$/MT |
| Best treatment results | 50% fruit >75mm Ø; Total yield = 76 MT/Ha K conc. in leaves = 1.5%. No phytotoxicity Grower’s revenue from yield: 20,720 US$/MT |
| Characteristics of best treatment | Yield increase: 12 MT/Ha Grower’s revenue increase from yield: 8750 US$/MT All advantages obtained without combining growth substances. Very likely to alleviate damage to leaves caused by leaf-miner. Cost of treatment (application + material) 257 US$/Ha |
| Net benefit of best treatment | 8,500 US$/Ha |
| Benefit/Cost ratio | 34 |
| Conclusions | Local & Worldwide: Should be tried out on all cultivars benefiting from increased fruit size |
| Reference | Y. Soffer, R. Baram & D. Ruber |
Need more information about growing citrus? You can always return to the citrus tree fertilizer & citrus crop guide table of contents
