•cirad sra

(1)

ISSCT

Osiryl® an efficient biostimulant

for sugarcane

3

• �AL ENGINEElllNG AGRONOMV ANO EXTENSION

MARION 0

1,2,

PAYET 0

3,

ADRAS JN

3

RESULTS

On sugarcane production, the three

treatments with the biostimulant were more productive than the untreated control,

both in cane and sugar yield. Osiryl® had no impact on the

ces.

Differences were statistically significant for rates of 15 and 20 ljha·1 _{(p < 0.0001)}

with respectively + 10.2 and 18.0 t ha·1

in cane and+ 2.0 and+ 2.7 t ha·1 _{in sugar}

(GML in Minitab). The average yield of the untreated control was 94.1 t ha·1 _{in cane}

equivalent to 13.8 t ha·1 _sugar.

CONCLUSION

� .c:

-Cane production/year

Osiryl® is a Biostimulant (a.i. OSYR, obtained by depolymerization of ligno-cellulosic compounds) . which promotes root growth by slowing down auxrn degradation.

MATERIAL

AND METHODS

ln 2013 & 2014, on ratoon cane, in two fields trials, in a strip plot design with three replicates, three rates of biostimulant, 10, 15 and 20 1 ha·1 _{(a.i. 400 g 1 ·}₁₎_,_were

sprayed, targeting trash blanket with pre-emergent herbicides or alone on cane foliage. Treatments were compared to a control without Osiryl®.

Minerai fertiliser applied was identical on all plots.

120r--- 14Sugar production / year r---�

y = 0,28X2 + 4,38x + 90,0 R' = 0,99 ' Y= 0,02S x2 _{+ O,S2 X + 12, 13} R2 = 0,99 13,S t---,� io J::.

-, 100t----� 11.� +18 .... � +7 1 .:. llt---QI C

_"'

V 90

1 1

.

1 1

₂₀ 1

"'

_c:n ::,

..,,

12,S 12 20

Osiryl® i� an efficient abiotic biostimulant to optimize production resources ·

from env,ronmental and economical perspectives hke water and nutnents in a sustainable . 1