Query : agraarteadus

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The aim of this study was to estimate the feeding strategies of pregnant and lactating ewes fed only silage/hay or supplemented with concentrates (oat) on the ewe body condition score (BCS), production of ewes (lambs born per ewe lambed (LB), lambs born alive per ewe lambed (LBA), lambs born dead per ewe lambed (LBD), lamb birth weight (LBW), lamb 100 day weight (L100DW)) and ewe blood glyco ...

SUBJECT: organic farm; ewe body condition score; forage based feeding; ewe production; glycose

POSTED TO: Agraarteadus [2228-4893]

Escherichia coli O157:H7 human infections are mostly associated with consumption of raw or undercooked beef and raw milk. Ruminants, especially cattle are the main reservoir of the pathogen. The main aim of the present study was to evaluate the occurrence of E. coli O157:H7 in cattle dairy farm and beef production level in Estonia. It was found that E. coli O157:H7 is present at both the dairy ...

SUBJECT: stec serogroups; escherichia coli o157: h7; cattle; drug resistance; virulence markers

POSTED TO: Agraarteadus [2228-4893]

In actual review, the main morphological properties of the Pseudopodzolic soils and the principles of their dividing into soil species (identified by soil genesis) and varieties (divided on the base of soil texture) are treated. The compiling of actual review is caused by the fact that Pseudopodzolic soil was elected by the Estonian Soil Science Society for the Estonian year 2018 soil. In the ...

SUBJECT: humus cover type (pro humus form); pseudopodzolic soil; enchytraeidae; soil properties; estonian year 2018 soil

POSTED TO: Agraarteadus [2228-4893]

During drought chemical elements in a dry fertilizer go into solution in the soil with difficulty and the nutrients are less available to the plant. Foliar fertilization with Tecamin flower®, could compensate for nutrient deficiency due to water deficit. This study was designed to observe the effects of different application rates of foliar application of Tecamin flower® on growth, yield and f ...

SUBJECT: tecamin flower®; solanum lycopersicum; foliar application; water stress; genotype

POSTED TO: Agraarteadus [2228-4893]

Axillary shoot proliferation in in vitro mass propagation of Anoectochilus formosanus was successfully established via selection of different explant types, accessions and culture media to plantlet acclimatization. In the initiation stage, shoot tips and Murashige and Skoog (MS) medium containing 1.5 mg l-1 N6-benzylaminopurine (BAP) and 0.25 mg l-1 α-naphthalene acetic acid (NAA) were determi ...

SUBJECT: anoectochilus formosanus; tissue culture; accession; medium; explant

POSTED TO: Agraarteadus [2228-4893]

The levels of selected heavy metal in the water and fillets of Tilapia zillii Gervais, Sarotherodon galilaeus Trewavas and Oreochromis niloticus Lineaus in Osinmo Reservoir were assessed and compared with established regulatory limits of WHO and FEPA with a view to providing information on the water and the fish fillet heavy metal load as well as the fillet bio-accumulative potential as a like ...

SUBJECT: safety; health; heavy metal; fillet; consumption

POSTED TO: Agraarteadus [2228-4893]

The aim of this paper is to present the microorganisms and their activities and soil bulk density. It is a fact that both have a great impact on soil fertility and its health status. Among the microorganisms in soil, the bacteria and fungi are the most important ones for potato cultivation; the bacteria living on the plant roots serve to uphold the nutrient intake of plants. Our previous resea ...

SUBJECT: potato growing; bacteria; soil bulk density; fusarium; phytosanitary conditions

POSTED TO: Agraarteadus [2228-4893]

The disease of apple scab caused by the pathogen of Venturia inaequalis is a nonstop issue to the apple cultivators. The infection requires prompt and persistent treatment so as to control the infection. Today there are a few integrated pest management products (IPM) and programs for the treatment of apple scab with various application time. The aim of this study was to identify the optimal ap ...

SUBJECT: treatment; infection; apple leaves scab; disease; index

POSTED TO: Agraarteadus [2228-4893]

In 2013–2014 field trials were organised in Estonian Crop Research Institute to comply with the applied project of the Estonian Ministry of Agriculture. In the establishment of a red clover seed production field 2 cover crops (barley and spring wheat) were investigated on 4 treatments and 4 seed rates (2, 4, 6 and 8 kg ha-1). Based on the field trials it can be concluded that both two-row barl ...

SUBJECT: nitrogen and seeding rate; cover crop; economical calculation; seed yield; early and late tetraploid red clover

POSTED TO: Agraarteadus [2228-4893]

Arbuscular mycorrhizal fungi (AMF) are obligate symbionts forming mutualistic relationships with most land-plants. In AM symbiosis, the plant supplies the fungal partner with products of photosynthesis and in return recieves various mineral nutrients from the soil. Because of complex interactions with both soil and plants, disturbance can dramatically decrease AMF activity in soils and in thes ...

SUBJECT: agriculture; plant growth; arbuscular mycorrhizal fungi; ecological restoration; inoculation

POSTED TO: Agraarteadus [2228-4893]