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Plant production 1999

Grimm R., Seith M., Vögeli M.

At the University of Applied Sciences Wädens-wil (HSW) every year about 70‘000 fern plants (55 species) are produced. Occasionally, the production shows some serious defiencies: fungal infections and contaminations by algae or mosses. In collaboration with the Swiss Federal Research Station at Wädenswil (FAW) the reasons of these problems were partly determined. Three pathogenic fungi…

Plant production 1998

Winiger F.A., Reust W.

Plant production 1998

Valenghi D.

The field inspections for seed certification of cereals, hybrid maize, grain legumes, red clover and forage crops were carried out on 9’431 ha in 1998. In cereals 92 % of the registered area was admitted during field inspection. Presence of other cereals, drought damage and varietal impurities were the most important factors for rejection. The…

Plant production 1998

Lehmann J., Briner H.-U., Mosimann E., Bassetti P.

Plant production 1998

Rüttimann M., StrickerL.

“The question whether a new cultivation method is compatible with the soil fertility is twofold: Firstly, is there a way to handle the technique in order not to endanger the soil fertility? And if yes, secondly, is the application done in that way?<br>Soil separators were introduced in the German speaking part of Switzerland in 1995.…

Plant production 1998

Ruffner H.P.

This review follows the historic development of viticulture in Eastern Switzerland. It is not clear, whether wine making in this area dates back to the Romans. Written proof concerning local vineyards is available from the the 9th century on mainly from monasteries, which were instrumental in propagating viticulture. Later vineyard area grew rather uncontrollably and…

Plant production 1998

Meisser M., Wyss U.

For 20 consecutive years, the maize cultivar LG 11 has been serving as reference variety at the Federal Research Station for Animal Production (RAP). The collected data and observations provided an appropriate basis to investigate the influence of weather conditions on growth and development of this variety.<br>The Temperature sum (basis 6°C) for the time interval…

Plant production 1998

Boller B.

Three new Swiss cultivars of hybrid ryegrass (Lolium x boucheanum) have been released recently: Antilope, Dorcas and Redunca. These tetraploid cultivars originate either from crosses between Italian and perennial ryegrass at the diploid level, followed by a colchicine treatment, or from crosses between tetraploid parents. All three cultivars consistently outyield Gazella, the previously most used…

Plant production 1998

Valenghi D., Anders M., Boller S., Menzi M., Saurer W., Schachermayr G., Streckeisen Ph., Winzeler M., Weilenmann F.

Plant production 1998

Schubiger F.X., Bosshard H.-R., Dietl W.

The nutritive value of 30 plant species in alpine pastures was determined. Samples were collected at the beginning of the alpine season and three to four weeks later at two different sites. On the first sampling date the net energy content for lactation of the species was between 4.7 and 6.8 MJ/kg dry matter (DM).…

Plant production 1998

Dietl W.

The changing natural conditions such as water and nutrient supply, temperature and the various intensities of grazing enable many plant species to grow and numerous plant communities to establish. The following types of pastures were distinguished: High yielding, carefully utilized fertile pastures of the vegetation types Cynosurion, Poion alpinae. Low yielding, poor pastures on acid…

Plant production 1998

Schubiger F.X., Bosshard H.-R., Lehmann J.

The content of net energy for lactation, crude protein and crude fibre of fifteen grass species were compared. Samples were collected in field trials during the first, second and third growth cycle of a total of five growth cycles per year. Perennial ryegrass (Lolium perenne L.) produced the forage with the highest content of net…

Plant production 1998

Mediavilla V., Bassetti P., Konermann M., Schmid-Slembrouck I.

To study the influence of nitrogen fertilisation and seed density in hemp (Cannabis sativa L.) field trials were carried out in Switzerland and South Germany. A high seed density (30-60 kg/ha) and nitrogen fertilisation did increase stem and bast yields. Nitrogen also increased seed yield, plant height but also lodging. Seed yield was higher at…

Plant production 1998

Keller B.

To study the influence of nitrogen fertilisation and seed density in hemp (Cannabis sativa I.) field trials were carried out in Switzerland and South Germany. A high seed density (30-60 kg/ha) and nitrogen fertilisation did increase stem and bast yields. Nitrogen also increased seed yield, plant height but also lodging. Seed yield was higher at…

Plant production 1998

Sturny W. G.

“Farmland is increasingly stressed with high axle loads and intensive soil tillage techniques. The structure of the soil is thereby becoming more and more Unstable, whereas above all its load capacity has to be markedly increased. Zero tillage – a cultivation system without any soil tillage – offers a solution to this dilemma: it goes…

Plant production 1998

Walther U., Weisskopf P., Jäggli F.

Data from 822 plots were used to test different methods of estimating the optimum nitrogen application in winter barley and winter wheat. No method could estimate with sufficient accuracy the optimum amount as determined with the Nmin-method. Possible explanations are the non-additive effect of the different factors and the almost innumerable combination possibilities of the…

Plant production 1998

Vullioud P., Maillard A.

Plant production 1998

Schubiger F.X., Bosshard H.-R., Lehmann J.

Red clover (Trifolium pratense L.) had a higher content of protein and of digestible organic matter than orchard grass (Dactylis glomerata L) during the first, second and third growth cycles. With advancing maturity, the protein content and the digestibility decreased in both species. Red clover showed approximately 40 % less cell wall content than orchard…

Plant production 1998

Lehmann J., Briner H.-U., Mosimann E.

Between 1995 and 1997, 38 varieties of red clover and 24 of meadow fescue have been evaluated in a comparative variety test program. The criterias looked at were properties as yielding ability, competitive ability, resistance to diseases and persistence. Based on the achieved results, the following varieties are newly considered for the <<List of Recommended…

Plant production 1998

Defila C.

Per molte localité della Svizzera, il 1997 è risultato tra i quattro anni più caldi di questo secolo. Di particolare rilievo sono state le temperature elevate di marzo e di agosto, ma anche l’invasione di aria fredda alla fone di aprile con danni per gelo a diverse colture. In primevera si poteva osservare un anticipo…

Plant production 1998

Bohren C., Dubois D., Zihlmann U., Weisskopf P., Spiess E.

The possibilities of dead and living mulch were checked in three years trials comparing direct-mulch-planting and the traditional cropping system of potatoes. It is the aim to develop herbological methods in the new cropping system and to minimize N-leaching. The pre-forming of ridges after cereal harvest in the late summer and the type of green…

Plant production 1998

Menzi M., Arnold A., Collaud J.-F., Bassetti P.

Plant production 1998

Kessler J., Jolidon V.

In a long-term trial with a natural meadow situated at 1000 m above sea level, four experimental plots were fertilized with varying levels of mineral nitrogen. Per growing season and ha, 0, 55, 110 and 165 kg of N were applied. Each plot was additionally split into three cutting frequencies, i.e. 2, 3 and 4…

Plant production 1998

Stünzi H.

Plant production 1998

Schubiger F.X., Bosshard H.-R., Lehmann J.

Plant production 1998

Thomet P., Blättler Th.

Plant production 1998

Lehmann J., Zihlmann U., Anken Th.

Plant production 1998

Nydegger F.

Plant production 1998

Irla E.

Plant production 1997

Valenghi D.