N-Process Improvement of N mineral nutrition Grassland Agro - - PowerPoint PPT Presentation

N-Process Improvement of N mineral nutrition

Grassland Agro Conference R&D TAI Roullier Group JM Garcia-Mina

(JGM v1 2014)

• N fertilization – Main Topics

– N root uptake – N fertilizer metabolic efficiency within the plant – N losses: Efficiency and environmental problems – Soil N mobilization

N fertilization Problems – N-Process solutions – N root uptake – NP1 PMA swc action – N fertilizer metabolic efficiency within the plant – NP1 PMA swc syn. actions – N losses: Efficiency and environmental problems – NP2 NSTA Action NAU nutrition – Soil N immobilization – NP3 SEA 1 Action

N-Process action on soil-plant system NS TA

• Matrix

In granule

SOIL NUTRIENTS

Root PMA SWC  N

Fert

• units –NAU effect

 Gradual N release

 Soil Microbial Activity  Soil Enzymatic activities (mainly Soil Proteases and ureases )

Rhizosphere

 N transformation  N root uptake

SEA 1  A

vailable fractions of nutrients in soil, mainly inorganic nitrogen N leaching N water

• soil contamination
• NH3 volatilization

• NP1 (PMA SWC) is a phytoregulatory complex, composed
• f a specific family of N-heterocyclic molecules with

auxin-CKs activity, selected and purified from several seaweed species. This Phytoregulatory complex has the ability to:

• (i) Increase in NR // GS GOGAT Activities
• (ii) Increase in Z-Pool transformation of S and C
• This effect increases N transformation in proteins and aa (in shoot and root)

• NP2. NS TA Process is an organo-mineral matrix

formed by calcium sulphate X-hydrated and calcium sulphate tetra-ureate, where calcium atoms are complexed by humic molecules.

Pre-granulator Reaction of N forms Matrix formation Stabilization Process

Specificity HA

Urée SA 21

Fusion

Gran Drum

Screen

Mill

Dryer Screen Sécheur

Cooler

Conditioning-Coating

NS TA N-PROCESS

Homogeneity Resistance No auto-explosion Risk NS TA Matrix Gradual release

Technical Requirements

(H2O) XO M PCA M M PCA M M PCA M M PCA (H2O) XO M (H2O) XO M (H2O) XO M (H2O) XO M (H2O) XO M (H2O) XO M ESTRUCTURA CRISTALINA MATRIZ ORGÁNICA HIDROFÓBICA

Main Effects: The presence of the NSTA Matrix in the fertilizer granule has two complementary effects:

• 1. A Physiological effect by improving N fertilization

efficiency through the stabilization of the gradual simultaneous presence in the soil solution of nitrate (coming from ammonium soil nitrification), ammonium and urea: NAU effect

• 2. Environmental and nutritional effects derived from the

control of both N soil leaching and ammonium volatilization.

• Publications

Wheat

Height cm Tillering DW Shoot g/plant DW Root g/plant DW plant NO3

• 48

b 4.95 a 1.87 a 0.32 a 2.19 a NA 44.4 a 5.27 a 1.98 a 0.44 b 2.41 ab NAU 45.2 ab 6.16 b 2.22 b 0.35 a 2.57 b

Same N dose NAU contains less NO3

• (1/3)

than NO3

• treatment
• NAU vs NA and NO3

• NAU effect on the plant hormonal balance.

• NAU effect on the plant hormonal balance.

• NAU effect on the plant hormonal balance.
• CYTOKININS

Z, tZR (MORE ACTIVE FORMS), IPR cZR, (LESS ACTIVE or INACTIVE FORMS)

• IAA
• ABA

100µM 5mM

■ NO3

• / NH4

+ U

IAA BIOSYNTHESIS IN SHOOTS 100µM 5mM 100µM 5mM ABA BIOSYNTHESIS IN SHOOTS

Enhance SHOOTS development

CONCLUSIONS

NS TA Gradual Release ---- Reduction Losses

San Francisco et al., 2012

1 2 3 4 5 6 7 8 9 10 11 0,00 10,00 20,00 30,00 40,00 50,00 60,00 70,00 80,00 90,00 100,00

% de Nitrógeno

Lavados

NProcess 29N-verde NProcess 29N NProcess 214-10N verde NProcess 214-10N Nitrato de amonio Urea

Reduction in ammonium volatilization

• 18
• 16
• 14
• 12
• 10
• 8
• 6
• 4
• 2

7 8 9 11 14

N-PROCESS

urée

Organic sites in NSTA matrix- urea Intéraction

R&D TAI and CERA Study

• NP3. SEA 1. This compound is a humate-

auxin precursor complex with the ability to activate soil-enzyme activities, and specifically the protease and urease soil

• activities. This action permits the

mineralization of nitrogen from proteins- residues and amidic-residues (in general,

• rganic nitrogen) in soil humic substances,

thus increasing N soil availability for plants.

HHA-AxP

Soil Organic N Mobilization

Rhizosphere - Romola Soil

N-Process action on soil-plant system NS TA

• Matrix

In granule

SOIL NUTRIENTS

Root PMA SWC  N

Fert

• units –NAU effect

 Gradual N release

 Soil Microbial Activity  Soil Enzymatic activities (mainly Soil Proteases and ureases )

Rhizosphere

 N transformation  N root uptake

SEA 1  A

vailable fractions of nutrients in soil, mainly inorganic nitrogen N leaching N water

• soil contamination
• NH3 volatilization

MPPA Duo

Grassland Agro Conference R&D TAI Roullier Group JM Garcia-Mina

(JGM v1 2014)

PLANTA FERTILIZANTE

SUELO

D

MPPA Duo A soil-plant-fertilizer catalyzer

D

Increase Yield and plant-soil Quality

MPPA-Nutrients

XCK Complex

Binding sites

Ca : Cation (Fe+++,Al+++ Acid Soils; Ca++ Calcareous Soils

• II. D-N
• NH4

+

• Urée

• III. D-K

• III. D-Oligo

Increase Yield and plant-soil Quality MPPA-Nutrients

XCK Complex

Effect on plant development

Trat.

Spad height (cm) Nº of leaves Leaf d w (g) Root d w (g) Stem d w (g)

Plant d w (g)

C 41,4 17 56,0 25,7 10,7 6,6 43.1 AIA -6 46,1 19,3 77,0* 37,0* 13,6 9,7* 60.2* XCK 17

• 3

43,0 14,4* 38,2* 13,2* 5,0* 3,2* 21.3* XCK 17

• 6

43,4 18,5 81,0* 34,2 13,6 8,8 56.5 XCK 17

• 9

42,9 20,1* 79,7* 37,0* 13,0 10,2* 60.3* * LSD for p< 0.05.