Accessibility

  • Change text size

    • Normal Text
    • Medium Text
    • Large Text

  • Contrast

    • Black&white
    • High
    • Normal

  • Display

    • Cursor White
    • Cursor Black
    • Highlighting
  •  
Pioneering The Future
Βέλτιστος χρόνος για τη διαφυλλική θρέψη στη σόγια

Είστε εδώ

Αρχική > Articles > Βέλτιστος χρόνος για τη διαφυλλική θρέψη στη σόγια

Βέλτιστος χρόνος για τη διαφυλλική θρέψη στη σόγια

Η έναρξη εμφάνισης των λοβών ήταν το πλέον κατάλληλο στάδιο για την εφαρμογή του Multi-K

 

 

Crop/cultivar

Soybeans / A-4100 ; A-4501 ; Dorado 4.8. ; Dekalb 458

Country / locationNorth cent. Argentina / Junin ; Murphy ; Arequito ; Va. Dafonte
ObjectivesIncrease yields
Haifa product testedMulti-K
Application methodFoliar nutition
Tested treatment1x 3% or 1x 6% or 3x 6% Multi-K at 200 lit./ha, combined with insecticides (against a caterpillar eating the stem base) at three different physiological stages: flower initiation, pod initiation & beginning of bean filling
Locations:
 Control treatment results
Kg/ha

Junin

2328

Murphy

4438

Arequito

4517

Va. Dafonte

2160

Best treatment results Kg/ha

2735

5030

5030

2579

Characteristics of best treatment

Best timing in all locations was spraying the Multi-K at pod initiation. In ¾ of the cases 6% produced best results. In one location 3% Multi-K was even better. The result obtained in Murphy is statistically very significant (P<0.01), and the mean of all locations is significant (P<0.05). Mean yield increase: 0.4 MT/ha Grower’s revenue from yield: 155.- US$/MT Cost of treatment (material only ): 6 $/Ha

Net benefit of best treatment0.4 x 155 –6 = $ 56
Benefit/Cost ratio62 / 6 = 10.3
Conclusions

This experiment is additional to several previous positive results showing considerable beneficial value for the soybean grower. Therefore, the results of this experiment can be implemented for all tractor- spraying at volumes of 100-200 L/ha. This experiment should be followed by an experiment with 20-40 L/ha (rates used in aerial sprays), and 9-12% Multi-K.

ReferenceG. Farbman and R. Melgar / Almidar & Haifa Chemicals Argentina, and National Institute for Agriculture

 

Need more information about growing soybeans? You can always return to the soybean fertilizer & soybean crop guide table of contents