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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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The quantitative evaluation of biological process of nitrogen reduction by yellow lupine
(Lupinus lutes L.) and narrow-leaved lupine (Lupinus angustifolius L.)
Stanisław Kalembasa 1 , Jerzy Szukała 2 , Dorota Kalembasa 1 , Andrzej Wysokiński 1 , Agnieszka
Faligowska 2
1 Siedlce University of Natural Science and Humanities, Siedlce, Poland
2 Poznań University of Life Sciences, Poznań, Poland
The quantitative evaluation of biological reduction process of nitrogen by two kind of lupine
(Yellow lupine and narrow-leaved lupine) in the field conditions upon three different methods of
soil plough was the aim of this work. The field experiment was carried out on the sandy loamy
soil in 2012 year in which for vegetation period (from April to August) mean temperature was
15.4°C and sum of rainfal 412 mm. The scheme of experiment encluded the following objects
according to type of soil cultivation: A – conventional, B – reduced, C – direct seeding (no
tillage). The lupines were sown in the III decade of march and nitrogen was applicated in the I
decade of may by the development stage of plants at 5 th leaves. The dose of nitrogen was 30 kgs
per hectare in the form of (NH 4) 2SO 4 which contained at 37.5 at % of 15 N. The total yield (seeds
and straw) of yellow lupine reached 11.6 t ha -1 (seeds 3.12 t ha -1 ) and blue lupine 8.07 t ha -1 (seeds
2.70 t ha -1 ). The uptake of total nitrogen in kgs per hectare reached for lupines: yellow 258.0 and
once 152.8 respectively. In this total amount the nitrogen 160.4 (in seeds 115.9) and 66.6 kg in
seeds 48.7 come from biological reduction of nitrogen by yellow and narrow-leaved lupine what
mean 62.5 and 43.5 % of total nitrogen. The kind of soil cultivation significantly differentiated
the yields of both type of lupine. This parameter influenced stronger on the yield of yellow than
blue lupine. The highest yield of yellow lupine 13.4 t ha -1 was stated on the reduced type of soil
cultivation (B) and lowest (9.63 t ha -1 ) on the tillage type (C) but for narrow-leaved lupine these
values were as 8.83 (A – conventional) and 6.98 (C – direct seeding) t ha -1 respectively. The kind
of soil cultivation differentiated the total uptake of nitrogen. The highest values for this
parameter were stated from objects with full soil plough for both type of lupines and the lowest
from tillage objects.
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