Abstract: The invention relates to a soil cultivation arrangement (100) for the agricultural cultivation of a soil (500), in particular a field and/or arable land, with a carrier device for attaching to an agricultural tractor and with one or more soil cultivation units (200, 201, 202, 203) for preparing and/or generating a seed furrow (530), which soil cultivation units (200, 201, 202, 203) as modular components of the soil cultivation arrangement (100), can be connected to the carrier device and/or to a sowing unit that can be towed by the agricultural tractor and can be arranged along the carrier device in the desired sequence.

Abstract: A method for single-grain application of seed by means of an agricultural sowing unit with at least one sowing element (200), which has a metering device (210) and a single grain-laying device (220), for the single-grain depositing of the seed along or within a seed furrow (310) arranged in the soil (300). A single grain (320) of seed is deposited along or within the seed furrow (310), adjacent to individual grains (320) of seed at a distance (l1) that can be selected or adjusted as required. A selectable or predetermined number (x) of seed capsules (100) is assigned to each single grain (320) of seed, whereby the seed capsules (100) are placed adjacent to the assigned single grain (320) along or within the seed furrow (310), and the active or stimulating substances (140) contained in the seed capsules (100) are released to support the associated single grain (320).

Abstract: The invention relates to a soil cultivation arrangement (100), in particular a soil preparation arrangement, for the agricultural cultivation of a soil (500), in particular a field and/or arable land, with a carrier device for attaching to an agricultural tractor and with one or more soil cultivation units (200, 201, 202, 203) for preparing and/or generating a seed furrow (530), which soil cultivation units (200, 201, 202, 203) as modular components of the soil cultivation arrangement (100) can be connected to the carrier device as required and can be arranged along the carrier device in the desired sequence. At least one soil cultivation unit (200) has a runner-like sliding device (400), the underside of which, as sliding surface (410) facing the soil (500), is designed to slide on a soil surface (510).

Abstract: The invention relates to a process and an apparatus for defining the properties and composition of molding sand in casting works, wherein some of the properties are defined in a test sleeve which receives a molding sand sample. In order to create a process or a testing method which makes it possible to more quickly and easily determine the properties of the molding sand which are essential for purposeful use, the invention proposes to take an ultrasonic measurement of the sample of molding sand, wherein, independently of this, at least one further property of the sample of molding sand is measured or defined, and the combined results of the ultrasonic measurement and further measurement are used to define the properties and composition of the sample. In order to create an apparatus which makes it faster and simpler to define the properties of the molding sand which are important for purposeful application, at least one ultrasonic transducer is provided at an end of the sample.