Tag Archives: maize

33-40 J. Barwicki, S. Gach, K. Koprysz, S. Ivanovs, A. Adamovicsand O. Valainis
Technical and economical analysis of harvesting and ensilaging of corn grain
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Technical and economical analysis of harvesting and ensilaging of corn grain

J. Barwicki¹, S. Gach², K. Koprysz², S. Ivanovs³⋅*, A. Adamovics³and O. Valainis³

¹Institute of Technology and Life Sciences in Falenty, Warsaw Branch, Warsaw, Poland 2Department of Production Engineering, Warsaw Agricultural University – SGGW, Warsaw, Poland 3Latvia University of Agriculture, Research Institute of Agricultural Machinery, Ulbroka, Latvia; *Correspondence: semjons@apollo.lv

Abstract:

Elaborated test results concerning two technologies of corn grain harvesting using grain harvesters. One technology called ZKP was using a mill crusher unit with direct filling system of a plastic bag and the other one was using a mill crusher connected to a silo press and was called ZKG. Provided research and calculations enabled evaluation of the values of critical coefficients, which were the following: unitary fuel consumption and unitary labour cost requirement. Because of different corn grain yields, these values referred to a unitary area of crop and also unitary mass of corn grain. It has been proved that the total costs of harvesting and conservation of corn grain with the technology ZKP equalled 321.83 € ha-1, but the same costs with the technology ZKG equalled 245.69 € ha-1. However, when taking into consideration the unitary mass of harvested grain, lower costs appeared with the technology ZKP at the value 21.89 € t–1 compared to the 31.02 € t–1 for the technology ZKG.

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129-132 O. Auškalnienė and A. Auškalnis
Effect of sulfonylurea herbicides on weeds and maize
Abstract |

Effect of sulfonylurea herbicides on weeds and maize

O. Auškalnienė and A. Auškalnis

Lithuanian Institute of Agriculture, Instituto aleja 1 Akademija, LT-58344 - Kedainiai distr.,Lithuania; e-mail: ona@lzi.lt, albinas@lzi.lt

Abstract:

Three field experiments, designed to test the new sulfonylurea group herbicides, were conducted in maize crops during 2002–2003 at the Lithuanian Institute of Agriculture in Central Lithuania.The weed species differed between fields. The most frequent weed species in maize standswere Elytrigia repens, and Chenopodium album. The efficacy of tested herbicides against Chenopodium album, Echinocloa crus – galli differed in relation to active ingredients. Rimsulfuron-methyl and nicosulfuron-methyl were effective against Echinochloa crus – galli; primisulfuron-methyl did not have any effect on this weed species. Nicosulfuron – methyl and primisulfuron-methyl were effective against Chenopodium album, however, rimisulfuron methyl did not control that weed as effectively.The green matter yield of maize in treated plots was 1–18.4 t ha-1 higher than in theuntreated.

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483-492 L. Baležentienė and S. Mikulionienė
Chemical composition of galega mixtures silages
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Chemical composition of galega mixtures silages

L. Baležentienė and S. Mikulionienė

Lithuanian University of Agriculture, Studentų 11, LT-4324, Akademija, Kaunas distr.,Lithuania; e-mail: ligita.balezentiene@ lzuu.lt

Abstract:

A b s t r a c t . According to the near-infrared reflectance spectroscopy data, the chemical composition of fodder galega (Galega orientalis Lam.) is more valuable forage than traditional fodder plants such as the red clover and timothy at budding-early flowering stage. Due to the high concentration of total protein (231 g kg-1) and some amino acids (asp, glu, phenylala), galega fresh mass could be used as a substitute for the soybean cake for 1.4–2.9 kg equivalent amounts. The mean of asp, glu and phenylala content in galega DM constitutes 68.22–56.37 % of their concentration in soybean cake. The high total protein concentration of fodder galega which was determined indicated that this crop could be used for increasing the protein content of livestock rations and successfully replace soybean cake, which is imported and expensive.For supplying livestock with succulent forage during the year and for producing highquality silage, galega mixtures with grasses containing many water-soluble carbohydrates could be ensiled. Possibilities of ensiling mixtures of early flowering stage fodder galega (1:1) with orchardgrass (Dactylis glomerata L.), timothy (Phleum pratense L.), wheat grass (Elytrigia repens L.), milk stage maize and sugar beet leaves were studied at Research Station and Training Farm of Lithuanian University of Agriculture. The addition of 0.3% FPC to galega-maize silage had no significant influence on DM (225 and 214 g kg-1), mineral element concentration and pH value (4.7 and 4.4) as compared to galega-maize silage without preservatives. The results of ensiling indicate that the quality of pure galega and galega-wheat grass silage was poor quality due to an unbalanced ratio of protein and water-soluble carbohydrates. Fodder galega appears suitable for ensiling with a grass component (orchardgrass, timothy or maize) which accumulated not less than 30% DM.

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