Szarvasi-1

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Szarvasi-1 (also simply Szarvasi1 ) is the trade name of a hybrid grass variety that was developed by the Hungarian non-profit research and development company for agriculture in Szarvas on the basis of the dull-flowered couch grass . In the German-speaking world, the variety is also known as giant wheatgrass .

Origin of "Szarvasi1"

The variety was developed “through a hybridization of grass species from the alkaline soil of the lowlands and grass species from the arid regions of Central Asia”. “Szarvasi1” is subject to plant variety protection .

Characteristics of "Szarvasi1"

“Szarvasi1” is characterized by its deep roots . "Szarvasi1" is both drought tolerant and very frost hardy as soon as it is past its sensitive youth stage. Due to the elastic stalk , which tends to become lignified , it can grow to a maximum height of 2.5 meters. The leaf structure is rough due to the high silicon content. The flowering period begins in June. The flowers stand together in a 20 to 30 cm long inflorescence.

Economic importance of "Szarvasi1"

"Szarvasi1" is used as ruminant feed , fermentation substrate , heating material or cellulose raw material , depending on the time of cutting . With the increasing popularity of biogas plants , their use as a fermentation substrate is particularly relevant, especially since the methane yield of "energy grass" is higher than that of maize and many other energy crops, according to studies at the Agricultural Research Center in Triesdorf . The methane yield per hectare is around 20% higher than that of silage maize. In terms of dry matter yield, too , “Szarvasi1” clearly outperforms maize plants.

Agricultural cultivation of "Szarvasi1"

“Szarvasi1” can be sown from April to September. A seed depth of 1 centimeter should not be exceeded and it must be ensured that the seedbed is weed-free and crumbly . After sowing , the soil should reconsolidate . The growth of the plant begins at temperatures that are only slightly above 0 ° C, but it remains very sensitive to frost until it reaches the three-leaf stage and can withstand competitive pressure only with difficulty. This “energy grass” is usually cut twice a year, usually in June and September. A cutting height of 15 centimeters should not be fallen below to ensure that this grass remains competitive despite a low grain density . In practice it has been shown that a high cut in summer leads to a very slow regrowth. A cut at a height of approx. 7 cm has a positive effect here. The Triesdorf experiments gave similar results. With a good water supply, a third cut is also possible. The cultivation of Szarvasi does not lead - contrary to popular false reports - to the loss of the arable status even if it is not plowed up after 5 years. The status is not lost through the cultivation, as it is a permanent crop with the code number 853 and not green fodder plants such as arable grass or clover grass.

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Individual evidence

  1. ↑ a b "SZARVASI-1" ENERGIEGRAS at the non-profit research and development company for agriculture in Hungary.
  2. ↑ Triesdorf Energy Plant Trial (PDF) ( Memento from November 25, 2011 in the Internet Archive ) accessed on October 30, 2011

Further information

  • Chamber of Agriculture Vienna: Drought-tolerant forage and energy grasses put to the test , October 30, 2011
  • Josef Schrabauer: Drought-tolerant , perennial grass species for use as forage or energy recovery in semi-humid and semi-arid production areas. Master's thesis, University of Natural Resources and Life Sciences, Vienna, 2010. (Online version available via Internet search.)
  • Szarvasigras - an alternative for biogas plants? In: Biogas Journal. 4/2011, p. 64ff. (Online overview)