Såbäddar för vårstråsäd

Poor crop emergence causes significant economic losses to Swedish agricul ture, the most common reasans being drought, crusting, and too deep sowing. In a sampling investigation embracing 300 spring-sown fields distributed all over the country, basic data concerning the properties of the seedbed we re collected. The following praperties were studied: The depth of the seedbed (~ the harrowing depth), the roughness of its surface and battom, the moisture conditions, the soi1 temperature , the aggregate size distribution I the seed placement, and the resulting crop emergence. Particle size distri... Mehr ...