INSTITUTO NACIONAL DE INVESTIGACIÓN Y TECNOLOGÍA AGRARIA Y ALIMENTARIA (INIA)
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INSTITUTO NACIONAL DE INVESTIGACIÓN Y INSTITUTO NACIONAL DE INVESTIGACIÓN Y TECNOLOGÍA AGRARIA Y ALIMENTARIA TECNOLOGÍA AGRARIA Y ALIMENTARIA (INIA) (INIA) DPTO. MEDIO AMBIENTE DPTO. MEDIO AMBIENTE ALCALA DE HENARES, MADRID ALCALA DE HENARES, MADRID , SPAIN , SPAIN Madrid, September 2006 Madrid, September 2006 BIOKENAF BIOKENAF QLK5-CT-2002-01729 QLK5-CT-2002-01729 Biomass Production Biomass Production Chain and Growth Chain and Growth Simulation Model for Simulation Model for Kenaf Kenaf S ID T - JL Tenorio - I W alter - J González Cortés - EF de A ndrés - A González M oreno - A A yuso M ateos - E Z am brana S cientific T eam IN IA
description
BIOKENAF QLK5-CT-2002-01729. Biomass Production Chain and Growth Simulation Model for Kenaf. INSTITUTO NACIONAL DE INVESTIGACIÓN Y TECNOLOGÍA AGRARIA Y ALIMENTARIA (INIA) DPTO. MEDIO AMBIENTE ALCALA DE HENARES, MADRID , SPAIN Madrid, September 2006. INIA Dpto. Medio Ambiente - PowerPoint PPT Presentation
Transcript of INSTITUTO NACIONAL DE INVESTIGACIÓN Y TECNOLOGÍA AGRARIA Y ALIMENTARIA (INIA)
INSTITUTO NACIONAL DE INVESTIGACIÓN Y INSTITUTO NACIONAL DE INVESTIGACIÓN Y TECNOLOGÍA AGRARIA Y ALIMENTARIATECNOLOGÍA AGRARIA Y ALIMENTARIA (INIA) (INIA)
DPTO. MEDIO AMBIENTEDPTO. MEDIO AMBIENTEALCALA DE HENARES, MADRIDALCALA DE HENARES, MADRID, SPAIN, SPAIN
Madrid, September 2006Madrid, September 2006
BIOKENAFBIOKENAFQLK5-CT-2002-01729QLK5-CT-2002-01729
Biomass Production Chain Biomass Production Chain and Growth Simulation and Growth Simulation
Model for KenafModel for Kenaf
SI DT- J L Tenorio - I Walter - J González Cortés
- EF de Andrés - A González Moreno - A Ayuso Mateos
- E Zambrana
Scientific Team
I NI A
Task 2.3: Effect of irrigation and nitrogen fertilization on biomass yields
INIADpto. Medio Ambiente
Alcalá de Henares (Madrid)
Task 2.2: Effect of different sowing dates and plant population on biomass yields
SIDTJunta de Extremadura
Finca “La Orden”, Guadajira, Badajoz
Results of three years (Alcalá de Henares, Madrid, Spain).
• Kenaf dry yields of 15 t/ha in total biomass and 10 t/ha in stem biomass may be obtainable under normal conditions in central plateau of Spain, but in optimal conditions 21 t/ha in total biomass and 15 t/ha in stem biomass may be obtainable
• The maximum kenaf yield was obtained at the end of october (140-150 DAS in normal conditions and 170 DAS in optimal conditions).
• The irrigation treatment significantly affected to kenaf biomass production. The biomass production of kenaf was reduced significantly in I-0, I-25, and I-50 treatments, when compared with I-100 treatment.
2003
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DAS
To
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ry B
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ass
(t/h
a)
I-0 (03) I-25 (03) I-50 (03) I-100 (03)
2004
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DAS
To
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2005
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DAS
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ass
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DAS: days after sowing.
• The reduction of water amount significantly decreased the production of plant kenaf biomass in our climatic conditions
• The kenaf production was highly employee of a great water consumption
2004
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/ha)
I-0 I-25 I-50 I-100
• The biomass production rate was different in diverse periods from the cycle of kenaf growth
• Thus, the use of regulated deficit irrigation strategies in specific growing periods of kenaf crop may be investigated in order to optimise the water inputs without to reduce the biomass production
2004
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0 50 100 150 200Days after sowing
Bio
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/ha)
I-0 I-25 I-50 I-100
jun jul aug sep
- kenaf variety: Tainung 2
- sowing date: 30/05/2006
- plant density: 200000 plants/ha
Essays in 2006: Deficit Irrigation Essays in 2006: Deficit Irrigation
JUN JUL AGO SEPA 100-100-100-100 100 % ETP 100 % ETP 100 % ETP 100 % ETPB 25-50-100-100 25 % ETP 50 % ETP 100 % ETP 100 % ETPC 25-25-50-100 25 % ETP 25 % ETP 50 % ETP 100 % ETPD 25-25-25-100 25 % ETP 25 % ETP 25 % ETP 100 % ETP
IRRIGATION TREATMENTS
JUN JUL AGO SEPA 100-100-100-100 100 % ETP 100 % ETP 100 % ETP 100 % ETPB 25-50-100-100 25 % ETP 50 % ETP 100 % ETP 100 % ETPC 25-25-50-100 25 % ETP 25 % ETP 50 % ETP 100 % ETPD 25-25-25-100 25 % ETP 25 % ETP 25 % ETP 100 % ETP
IRRIGATION TREATMENTS
• In the A and B irrigation treatments the biomass production was similar, but with treatment B a saving of 36 % of used water was obtained
Total dry biomass
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c
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0 20 40 60 80 100 120DAS
t/h
a
A B C D
Stem biomassa
a
b
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1,0
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2,0
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3,0
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4,0
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t/h
a
A B C D
• Kenaf dry yields of 18-20 t/ha in stem biomass may be obtainable under normal conditions in Extremadura, Southwestern Spain.
• The maximum kenaf yield was obtained at the end of october (140-150 DAS in normal conditions and 170 DAS in optimal conditions).
• Kenaf field trials. The harvest tests carried out with a forage chopper and a baling machine have been satisfactory, allowing by means of this method to make a correct harvest of the kenaf stems.
