|
In the search for more the more efficient
and effective supply of nutrients to wheat crops, it was proposed that
altering the timing and placement of N and P in relationship to root
development would increase nutrient use efficiency and reduce environmental
impacts. Output 1 from this project
is a written report describing and evaluating a range of strategies
designed to better synchronise nutrient supply with crop demand on both a
spatial and temporal scale under varying climatic conditions and soil
types. We recognised that there is a
need to undertake a range of studies at different levels and the approach
adopted was to use the root growth simulation model RootMap in combination
with glasshouse and field experiments to evaluate the effect of a range of
formulation, placement and timing strategies for N and P fertilizers.
Relationship of reports and activities
to milestones
Within this output, there are nine
subprojects and they are:
Project Milestone #2
1.
An investigation of the effect of nutrient
placement on wheat root growth in glasshouse and field experiments (Appendix 1 – abstract of article)
2.
Evaluating the capacity of the ROOTMAP model to
represent the root growth and nutrient uptake dynamics of wheat grown in a
glasshouse study (Appendix 2 – abstract
of article).
3.
Use
ROOTMAP to identify fertiliser management strategies to maximise nitrogen
and phosphorus acquisition by wheat in two contrasting soils from Victoria
(Appendix 3 – summary of report).
Project Milestone #4
4.
Plant availability of liquid phosphorus fertiliser
under soil moisture deficit in non-calcareous soils of south-eastern
Australia (Appendix 4 – abstract of
article)
5.
The effect of nutrient position and release rate on
cereal root growth and nutrient uptake using different 15N nutrient forms
in controlled environments (Appendix 5 –
summary of preliminary report).
Project Milestone #6
6.
The effect of different enhancements on the release
of N from urea (Appendix 6 – summary of
Honours project).
7.
Undertake field studies on the response to N
placement, timing and form at three locations over three years (Appendix 7 – summary of research)
8.
Undertake field studies on the response of P
placement, timing and form at three locations over three years (Appendix 8 – summary of research).
Response to overview of the output.
Back to
Project Outcomes
|
