Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.
2003
Volume 6
Issue 1
Topic:
Agronomy
ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Jankowski K. , Budzyński W. , Dubis B. 2003. CULTIVAR-RELATED AND AGRONOMIC CONDITIONS OF RYE YIELDING ON GOOD RYE COMPLEX SOIL
, EJPAU 6(1), #05.
Available Online: http://www.ejpau.media.pl/volume6/issue1/agronomy/abs-05.html

CULTIVAR-RELATED AND AGRONOMIC CONDITIONS OF RYE YIELDING ON GOOD RYE COMPLEX SOIL

Krzysztof J. Jankowski, Wojciech S. Budzyński, Bogdan Dubis

 

ABSTRACT



The present paper covers economic analysis (concerning energy and cost aspects) of rye production technologies employing different cultivars, sowing dates, NPK fertilisation, microelements nourishment and weed control. Intensive production of rye using a hybrid cultivar, early sowing and NPK fertilisation at 176 kg·ha-1 produced 46% higher yields compared to extensive technologies involving open pollination cultivars and low fertiliser rates. The highest energy consumption in winter rye production was caused by NPK fertilisation. Intensive technologies were less energy-effective than extensive methods. The direct costs of growing 1 ha of rye in extensive technologies equalled 2.2 – 2.9 t grain. In intensive technologies direct costs were returned at yields as high as 3.9 – 4.6 t per ha. The yield value increment resulting from more intensive production methods did not cover completely the increase in direct costs. Therefore, the surplus of production in intensive technolog

Key words: winter rye, technology of production, accumulated energy, energy effectiveness, direct costs, production surplus, production cost per unit.