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Book of Abstracts First Legume Society Conference 2013: A Legume Odyssey Novi Sad, Serbia, 9-11 May 2013
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Production and economic effects of various intensity of pea cultivation
Franciszek Borówczak, Karolina Lenartowicz, Katarzyna Rębarz
Poznań University of Life Sciences, Departament of Agronomy, Poland
The field experiments were carried out in 2005 – 2008 in Złotniki Experimental Station, near
Poznań, as a completely randomized design in four replications.Investigated factors:1) water
variant: - irrigated – irrigation was applied when the water content in 0 -30 cm soil layer fell to 70
% of field capacity in the period of the greatest susceptibility of plants to water deficit, - non
irrigated – natural water conditions; 2)cultivation technologies: - low-input – without phosphorus
and potassium fertilization and chemical plant protection, - medium-input – with limited
application of pesticides, phosphorus fertilization – 45 kg P 2O 5/ha, potassium fertilization – 65
kg K 2O/ha, -high-input – with full plant protection, phosphorus fertilization – 60 kg P 2O 5/ha,
potassium fertilization – 90 kg K 2O/ha and foliar fertilization; 3) Nitrogen fertilization: O, 30, 60,
90 kg N/ha. It was stated that irrigation affected the yield of seeds interacting with cultivation
technologies and nitrogen fertilization. Under irrigation conditions the medium- and high-input
technologies, in comparison to low-input one, increased seed yield, respectively by 0,48 and 0,51
t/ha, whereas under non irrigated conditions by 0,13 and 0,23 t/ha. Under irrigation conditions
the nitrogen doses: 30, 60 and 90 kg/ha caused a significant yield increase as compared to the
object without nitrogen. Under non irrigated conditions nitrogen fertilization did not differentiate
significantly seed yield. In the four-years cycle of research irrigation, on the average for other
factors, increased the seed yield by 1,64 t/ha (124,2 %). In both water variants the most
profitable turned out the low-input cultivation technology.
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