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Agricultural economics

Barth L., Lanz S., Hofer C.

Promotion of grassland-based cattle farming through the 2014-2017 Swiss Agricultural Policy

The development of the direct payment system will include new contributions for ensuring the food supply. These contributions aim at achieving optimal use of natural production potential and shall thereby help to maintain the full production capacity of agriculture in Switzerland. Precondition for the payment of subsidies for ensuring the food supply on grassland will…

Briner S., Hartmann M., Lehmann B.

Is agroforestry an economic opportunity for carbon-neutral animal production?

In Switzerland, agriculture is responsible for about 11 % of the emitted greenhouse gases. Agroforestry systems may improve the climate balance of Swiss agriculture by sequestering carbon. Agroforestry systems are a combination of a lignifying permanent crop with a crop or with grassland on the same area. One advantage is their capability to sequester carbon,…
Animal production

Dissler L., Häberli M., Probst S., Spring P.

Piglets diet supplemented with amino acid valine

The goals of these trials were to investigate the effects of different dietary amino acid concentrations and valine:lysine ratios on piglet performance and health. Two 4-week trials with 90 weaned piglets each were conducted. Both trials were set up as a block design with 3 treatments and 6 replicates per treatment (a total of 18…
Plant production

Schaub L., Breitenmoser S.

Temporal and spatial dynamics of pea weevils in pea crops

The pea weevil Sitona lineatus L. colonises pea fields sporadically in spring and damages the pea root system. To increase efficiency of insecticide treatments against this weevil, its temporal dynamics, spatial distribution and the effect of treatments were studied using traps and an aspirator. Pea weevils appeared at pea emergence, i.e. 47 degree-days after sowing.…

Stünzi H.

Analytical studies of the CO2 test for P and K fertilisation

Extraction of soils with CO2-saturated water is one of the Swiss reference methods for phosphorus and potassium fertilizer recommendations. Laboratory experiments show that a significant role is played by interactions between CO2, calcium, phosphate, the only slightly soluble calcium phosphates and lime. Since soil air exhibits increased CO2 content, these solution equilibria also influence the…