• Aucun résultat trouvé

Osiryl®, an efficient biostimulant for sugarcane

N/A
N/A
Info
Télécharger
Protected

Academic year: 2021

Partager "Osiryl®, an efficient biostimulant for sugarcane"

Copied!
1
0
0

Chargement.... (Voir le texte intégral maintenant)

Texte intégral

(1)

3

rd

Agricultural engineering, agronomy and extension workshop

23 to 28 September 2018 - La Réunion

Osiryl®, an efficient biostimulant for sugarcane

MARION D1,2, PAYET O3, ADRAS JN3

1eRcane, 29 Rue d’Emmerez de Charmoy, 97494 Cedex Sainte-Clotilde, La Réunion;

2Cirad, UR Aïda, Av. Agropolis, 34398 Montpellier Cedex 5, France; 3CTICS, 7 Allée de la

Forêt - Boulevard de la Providence, BP140, 97463 Saint-Denis, La Réunion

[email protected]

Abstract

Benefiting from optimum production resources like water and nutrients is crucial in sustainable agriculture, both from environmental and economical perspectives. In Reunion, where arable lands are pressured by insularity and an increasing population, ensuring a sufficient supply of sugarcane for the two mills depends markedly on an increase in productivity.

Osiryl®, a biostimulant which promotes root growth by slowing down auxin degradation, was

evaluated in two field trials in a strip plot design with three replicates. Three rates of biostimulant, 10, 15 and 20L/ha, were sprayed at the base of ratooning cane, targeting both cane foliage and trash blanket. Ratoons were sprayed two to three month after harvest and over two consecutive years. Treatments were compared to a control without Osiryl®, which reflected grower’s normal practice. Mineral fertiliser applied was identical on all plots.

The 2-year average yield for both trials showed that Osiryl ® had no impact on the CCS and that the three treatments with the biostimulant were more productive than the untreated control, both in cane and sugar yield. Differences were statistically significant for rates of 15 and 20 l/ha (p < 0.0001) with respectively + 10.2 and 18.0 t cane/ha and + 2.0 and + 2.7 t sugar/ha (GML in Minitab). The average yield of the untreated control was 94.1 t cane/ha, equivalent to 13.8 t sugar/ha.

Keywords: sugarcane, biostimulant, yield, sustainability

Références

Télécharger maintenant ( PDF - 1 Page - 442.37 KB )

Documents relatifs

The Construction of the IRT Profiles Using Fractures that Store the Average

The complexity of the task, which is determined by the student's preparedness scale at the level of probability of the correct answer P (  )  0. So the complexity of

Waste No More: Gamification for Energy Efficient Behaviour at the Workplace

The following in-depth results from the interviews address gamification design insights pertaining to the non-game context and its eligibility to be gamified, overall

The year that was

The Canadian Primary Care Sentinel Surveillance Network, a Pan-Canadian project led by the CFPC that conducts standardized surveillance on selected chronic

Gaussian process interpolation: the choice of the family of models is more important than that of the selection criterion

Second, we provide empirical evidence that the choice of an appropriate family of models is often more important—and sometimes much more important, especially when the size of

In 2003, Dawson and Feinstein showed that the topological stable rank tsr(B

In this note, we investigate whether we will have tsr( A ) = tsr( B ) in general. Motivated by the fact that closed subspaces have smaller covering dimensions, we may ask whether

The Semantic Web identity crisis : in search of the trivialities that never were

Notwith- standing impressive research and engineering efforts to scale up Big Data solutions the way they do, harvesting an enormous amount of homogeneous data in a single place

On convex sets that minimize the average distance

We compute in particular the second order derivative of the functional and use it to exclude smooth points of positive curvature for the problem with volume constraint.. The

On convex sets that minimize the average distance.

The proof uses the second order derivative of the average distance functional F, which itself rely on the second derivative of the distance function along smooth vector fields