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Είστε εδώ
Η απόκριση των ζαραρότευτλων σε διαφυλλικούς ψεκασμούς
Δύο διαφυλλικοί ψεκασμοί με Multi-K Mg οδήγησαν σε σημαντική αύξηση σε αρκετές παραμέτρους απόδοσης και σε αντοχή καλλιέργειας σε ασθένειες
Πίνακας
Crop/cultivar | Sugar Beet/ Belotserkovskiy-45 (standard cv. in Ukraine) |
---|---|
Country / location | Ukraine / Belaya Tserkov, near Kiev |
Objectives | Increase yield |
Haifa product tested | Multi-KMg |
Application method | Foliar nutrition |
Tested treatment | 2 x foliar sprays, each @ 18 kg/ha, combined with 1kg/ha of a micro-nutrient compound (Microsol-B). 1st spray- just before spaces between rows were covered by the foliage, 2nd spray – 3-4 weeks before harvest. |
Control treatment results | Total root yield: 28.5 MT/ha Sugar content: 18.3% Sugar yield: 5.22 MT/ha Yield of plant tops: 13.4 MT/ha Bacterial infection rates (%): Cercospora: 91.7; Phoma: 2.5; Erysiphe: 75.8; Ramularia: 65.0; Bacterial blotch: 21.7 Viral (mosaic) infection rate 0.8%. Grower’s revenue from root yield: 50.5 US$/MT |
Best treatment results | Total root yield: 33.6 MT/ha Sugar content:18.6% Sugar yield: 6.25 MT/ha Yield of plant tops: 16.7 MT/ha Bacterial infection rates (%): Cercospora: 82.0; Phoma: 1.7; Erysiphe: 63.3; Ramularia: 43.3; Bacterial blotch: 11.7 Viral (mosaic) infection rate 0.1%. Grower’s revenue from root yield: 50.5 US$/MT |
Characteristics of best treatment | Net benefit of best treatment Increase in total root yield: 5.1 MT/ha (17.9% over control) Increase in sugar content: 0.3% (1.6% over control) Increase in sugar yield: 1.03 MT/ha (19.7% over control) Increase in yield of plant tops: 3.3 MT/ha (24.6% ---“--- ) Cost of treatment (application + material) 70.2 US$/ha |
Net benefit of best treatment | 257.55 |
Benefit/Cost ratio | 3.67 |
Conclusions | Significant increase in several yield parameters, and in crop resistance to diseases. Similar experiments should be performed in a variety of conditions in Ukrine. An important experimental control of spraying Microsol-B without the Multi-KMg is missing. Also, the extra benefit stemming from the enhanced top yield was not taken into consideration. |
Reference | Dr. A. Zarishnyak & Mr. N.V. Roik– Ukrainian Academy of Agricultural Sciences, Institute of Sugarbeet |
Τα τελευταία νέα από την Haifa
Το ενημερωτικό δελτίο της Haifa σας παρέχει πληροφορίες σχετικά με τη προηγμένη θρέψη των φυτών,
και παρέχει τα τελευταία νέα που θα πρέπει να γνωρίζετε για τις καλλιέργειες σας.