History - major achievements
In 2008, two
projects were completed.
1) The
project titled "Efficiency for production of willow, miscanthus and
Sida
in different habitats of defective air-water relations, and assessment
of the
environmental impact from production and combustion of these fuels." (2
PO6S 013 1926) was coordinated by prof. Antoni Faber. Field experiments
were
located on heavy soil (periodically over wet, defective air-water
relations)
and on medium soil (temporarily dehydrated). In the years of the study
was
clearly different climatic water balance (KBW). The most profitable was
in 2004,
when KBW during the growing season ranged from -107 to
Miscanthus has reached its peak yield in the third and fourth season.
The
average dry matter yield obtained in the autumn was 17.7 t ha-1
on
heavy soil and 18.7 t ha-1 on medium soil. Acute
drought in 2006
limited the yield on average by 17% on heavy soil and by 14% in medium
soil.
Crops harvested in early spring were on average 18% lower compared to
autumn,
which was caused by ptosis of leaves in winter. The observed increased
biomass
content (in%): K-0.87, SiO2 - 0.67 and Cl -
0.07. During the
combustion, this can result in the temperature lowering of ash melting
(K),
formation of scale (SiO2), and increased
aggressiveness of the
corrosive gas (Cl). Carbon sequestration in soil in an experiment
located on a
heavy soil, the harvesting of plants in early spring, ranged 0.61-0.95
t C ha-1
y-1, and the average soil C 0.63-1.17 t ha-1
r-1.
This ensures the neutrality of the greenhouse gas emissions during the
cultivation and combustion of miscanthus. Heat combustion of Miscanthus
in the
dry state tended to the average value of 18.8 MJ kg-1.
Due to the
laxity of Miscanthus chips, was proved to be impossible for automatic
feeding
of biomass to the boiler (the combustion material was subjected to the
palletisation proses).
Sida dry
matter yield slightly depend on habitat quality. The average dry matter
yield
of the crop was 10.0 t ha-1. Virginia did not
react with drop in
yield to drought, even on sandy soil. Virginia proved to be sensitive
to
disease, primarily on sclerotinia rot (causing loss of plants), and ear
rot
(yellowing of the plants). Applied nitrogen fertilisation allowed
managing a
small negative balance of this component (average -
2) The
second completed research projects in 2008, (2 PO6R 078 1928), was
coordinated
by Dr. Jerzy Kozyra. The project was titled: An annual series of
spectral
characteristics of radiation reflected from the surface of the crop
(AGROCICLUS). The aim of the project was to describe the annual cycle
of
vegetation indices derived from crop ground measurements of radiation
reflected
from the surface of various crops. Determined the relationships between
vegetation indices derived from remote measurements with LAI and SPAD
measurements
made in the canopy. Measurements were performed using the LI-1800
Spectroradiometer your digital camera and Licor TETRACAM ADC
(Agricultural
Digital Camera). During the project the leaf area index (LAI) and Soil
Plant Analysis
Development (SPAD) were determined. Based on three years of spectral
measurements of radiation reflected from the surface of the crop
(2005-2007)
for the 12 sites defined the functions of the annual cycle of
vegetation
indices. The study confirms the possibility of linking temporal changes
of
vegetation indices, agricultural crops with the development of plants
using the
method of effective temperature sum. The best fit of the annual cycle
model of NDVI
temporal changes were obtained for winter wheat, spring wheat, rye,
triticale,
barley by using the second-order polynomial, while the winter barley,
spring
barley, oilseed rape, maize by using third order polynomial. It was
shown that
the close relationship between the index LAI and vegetation indices can
be used
for a period of senescent leaves. After this period, the dependencies
are less
correlated. The developed algorithms have been used in a computer
program
AGROCYCLUS, which is used to analyse the variability of the field,
plant health
and crop identification.
In 2008,
Robert Borek and Magdalena Borzęcka-Walker defended their doctoral
dissertations. Dr. Robert Borek presented his work titled
"Empirical-statistical
and simulation models yield of willow (Salix viminalis L.) grown for
energy
purposes." and Magdalena Borzęcka-Walker introduced the work
"Productivity of Miscanthus (Miscanthus spp) in different habitats and
weather conditions."
In 2008, the
employees of the Department were honoured with an award from the
Minister of
Agriculture and Rural Development for work: "Develop and implementation
of
a system for balanced fertilizer advice". Award
received: Dr. Tamara Jadczyszyn, M.Sc.
Czeslaw Pietruch,
Prof. Mariusz Fotyma.
Opr. Andrzej Doroszewski