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The Effect of Date of Planting Seedlings and Polypropylene Fibre Covering on the Yield Aand Economic Efficiency of Melon

Rosa R., Kosterna-Kelle E., Franczuk J., Zaniewicz-Bajkowska A., Panasz M.

Journal of Ecological Engineering

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2017

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Vol. 18, nr 1

168--175

EN

Melon is a little popular vegetable to grow in Poland, due to high climatic requirements. Ensuring appropriate thermal conditions for plants growth is possible with relatively late planting seedlings. However, late planting does not guarantee high yield of good quality fruit. The factor enabling the earlier planting seedlings and improving the conditions of growth is the use of flat covers. The field experiment was conducted in 2008–2010 in central-eastern Poland. The effect of planting seedlings of melon ‘Malaga F1’ (15 May, 25 May and 4 June) and the length of polypropylene fibre 17 g·m-2 covering (by 4 and 8 weeks from planting, until harvest, control without covering) on the yield and economic efficiency of melon cultivation in the field was investigated. Most preferably the yield level and profitability of melon cultivation were influenced by planting seedlings on the 15 May and covering by 4 weeks. However, earlier planting decreased the share of marketable fruits in the total number of fruits. The highest share in the costs structure of melon cultivation had the costs of human labour.

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The Influence of Weather Conditions of Eastern Poland on Sweet Corn Yields Aand Length of Growing Season

Rosa R., Kosterna-Kelle E., Franczuk J., Zaniewicz-Bajkowska A.

Journal of Ecological Engineering

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2016

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Vol. 17, nr 4

273--279

EN

The aim of the study was to determine the effect of weather components (air temperature, precipitation) on the growth, yield and the length of the growing season of sweet corn cultivated in eastern Poland. The results come from a field experiment conducted in 2006–2011. Weather conditions in the successive years of the study significantly modified the yield of ears, weight and number of formatted ears, high of plants and the length of the growing season of sweet corn. Good yielding of sweet corn favoured years with moderate air temperatures in July and uniform distribution of precipitation during the growing season. The highest yield of ears was found in 2011, the lowest in the very difficult in terms of weather 2006. The shortest growing season was characterized corn grown in the years 2006 and 2010 with the high air temperatures in July and August, the longest in the years 2009 and 2011, in which the temperatures in the period June-August were the lowest of all the years of research. Irrespective of the year of study, cv ‘Sheba F1’ was formatted eras with higher weight than cv ‘Sweet Nugget F1’.

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The effect of flat covers on the growth and yield of broad beans (Vicia faba ssp. Major)

Franczuk J., Rosa R., Kosterna-Kelle E., Zaniewicz-Bajkowska A., Tartanus M., Chromińska K.

Infrastruktura i Ekologia Terenów Wiejskich

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2016

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nr IV/4

1733--1744

EN

The experiment was carried out in 2007-2009, in the central-eastern Poland. The investigated factors were kind of covers: the control without covering, perforated foil with 100 holes per 1m2 and polypropylene fibre weighing 17·g·m-2, and broad beans cultivars - ‘White Windsor’, ‘Bizon’ and ‘Bachus’. Broad bean seeds were sown at the beginning of the second decade of April, at 50 × 10 cm spacing. Directly after sowing the field was covered by covers, which were left on the plants for 3 weeks. After removing the covers the height of plants was measured. Broad bean was harvested at the stage of milk maturity of seeds. The height of broad bean plants and the number of pods per plant were determined prior to the harvest. During the harvest the weight of pods and the yield of fresh seeds were determined and productivity of seeds was calculated from the weight of pods. Biometric parameters of pods and seeds i.e. length of pods, the number of seeds per pod and length, width and thickness of seeds were measured. It was found that the broad bean covering contributed to increase in the height of plant and yield as well as improvement of the biometric parameters of pods and seeds compared to the control object without covering. The highest yield of pods and seeds was produced by ‘Bizon’ cv. Plants covered by polypropylene fibre yielded best. The seeds of grown cultivars were characterized by similar parameters. Polypropylene fibre covering favoured formation of pods and seeds in the pods but did not cause changes in the seed parameters.