• Aucun résultat trouvé

to improve ecological resilience

N/A
N/A
Protected

Academic year: 2021

Partager "to improve ecological resilience"

Copied!
1
0
0

Texte intégral

(1)

Pre-germinated single bud setts: a way

to improve ecological resilience

at planting

Results on plant cane :

 80 % economy of setts  No yield reduction

 Same number of nodes/stalk

 Higher stalk number for single buds compared to traditional planting (8%)  Good bud multiplication ratio of 1:99

* Experiment based on two measurements of 10 linear meters for each treatment

 No yield reduction in

plant cane and ratoons

 Soil tillage reduction

 Water retention, erosion limitation, functional biodiversity  Full and homogeneous germination

 Saving of bud setts to be planted  Less or no use of herbicides

 Plant cane impacts on successive ratoons

 A good germination reduce weed pressure and herbicide use  Gap filling is time consuming and expensive

 Sugarcane setts should be healthy

 Planting sugarcane in mulch is challenging

www

.cirad.fr

References:

Budi, S., Redjeki, E.S., Prihatiningrum, A.E., 2016. Effect Variety and

Stratified Plantlet Nursery to the Growth Sugarcane (Saccharum

officinarum L.) Propagated in Single Bud. Res. J. Seed Sci., 9: 42-47.

Jain, R., Solomon, S., Shrivastava, A.K. et al.,2010. Sugarcane bud chips: A

promising seed material. Sugar Tech (2010) 12: 67.

Owais, M. Galal, A. 2016. A new technique for planting sugarcane in Egypt.

IIOABJ, Vol. 7.4. 15-21.

1- Planting is a major issue in sugarcane

3- Many advantages of the technique

2- Pre-germinated single buds transplanted compared to traditional planting

Pre-germinated single bud setts in pots in dual row plantation (Bassin-Plat Cirad experiment station - Reunion Island)

© Cirad Poser C.

©

cr

édit

photo

Mechanical planting test without mulch

© Cir ad – C. P os er

From one bud to one stool after 11 months

3 month cultivation of Crotalaria juncea before fine mechanical gyro-grinding - Hole digging with mechanical auger before transplantation.

3 month cultivation of Avena sativa followed by 4 month cultivation of a mixture of Crotalaria juncea and Mucuna pruriens before

coarse gyro-grinding for mulching.

Transplantation in much POSER C1, CHABANNE A2, MARTIN J1, GUENO JM2, RIBOTTE C2, TUMOINE L2, LE BRAS J2, CHRISTINA M2,GOEBEL FR1

1 Cirad UPR AÏDA, Avenue Agropolis, F-34398 Montpellier Cedex 5, France

2 Cirad UPR AÏDA, F-97494 Saint Denis Messagerie Cedex9, La Réunion, France

E-mail: poser@cirad.fr

4- Further improvements

 Mechanical transplanting techniques in efficient mulch  Reduce labor cost by optimizing mechanization

 Complementary nutrients in pot

 Acclimatization of young plants before transplantation

 On a 3 month mulch

(7.4 t/ha dry matter)

 On a 7 month mulch

(11 t/ha dry matter)

Aknowledgements:

Thanks to Alizé Mansuy from eRcane, J.M. et O. Barau for their collaboration in this experiment; D. Guard-Lavastre, E. Gerardeaux and P. Letourmy for their advice and all technicians involved in the field work.

0 20 40 60 80 100 120 140 160

Single Buds Traditional setts

Single Buds Traditional setts

R579 R570

Yield t/ha of Plant cane at 9 months ** 0 20 40 60 80 100 120 140 160

Single Buds Traditional setts

Yield (t/ha) of plant cane at 11 months* 0 20 40 60 80 100 120 140 160

Single Buds Traditional setts

Single Buds Traditional setts

R579 R570

Yield t/ha of 1st ratoon

at 12 months **

 A reduction in herbicide use is possible

** Experiment based on 285 m2 plots for each treatment.

Dual rows : 1.4 x 0.5 m

Références

Documents relatifs

.:a..wAUSTRALIAN CENTRE FOR INTERNATIONAL

Intensive cropping: intensive smallholder cultivation of introduced varieties for the Thai market salaried labour used solely at harvest time.. cotton in

The tensile behavior of polypropylene was also analysed in terms of thermal (or viscous) and athermal (or elastoplastic) stresses through relaxation tests (loading and unloading

Comparaison de l’efficacité des brosses à dents neuves et des brosses à dents utilisées depuis trois mois pour l’élimination de la plaque dentaire chez l’enfant.. RÉSUMÉ

Downward trend of the NAO – Left: A field of negative anomalies (dryer than average) of the annual discharges moves from western Siberia to eastern Siberia (NAO index: Hurrel,

یسررب تمواقم لاروفروف بیکرت اب بوچ رامیت هک داد ناشن یکیناکم یاه + هروا / دیردینا کیئلام ببس هب تمواقم شهاک و یتخس ض هب تمواقم هبر یم بوچ دوش ، یلاح رد تمواقم

the results showed that: (1) with the increasing density, the rate of stress relaxation decreased for PP/WF composites either by using MAPP or silane as coupling agent

Recent econometric studies point to three results: (i) NTM restrictiveness measures based on an aggregate of ‘core’ NTMs are more restrictive than existing tariffs and, because