Single seed drill special for wheat seed selection garden

Abstract

The invention provides a single seed drill special for a wheat seed selection garden, and belongs to the field of agricultural machine technology. Material quantity of the wheat seed selection garden is large and a seeding rate is low, and monoseeding is required. According the prior art, artificial sowing is used in most seed breeding units with consumed time, consumed labor and bad quality. 'A seed cabin of an automatic seed changing and supplying apparatus of a single seed drill'on an air-suction type single seed-metering device supplies seeds for the seed-metering device, seeds discharged from a discharge plate fall into a top mouth of a seed guiding device housing of an apparatus for improving seeding precision of a single seed drill, the seed-metering device is provided with a plant spacing adjusting apparatus; once the single seed drill moves forward for a certain distance, a distance recorder emits a signal to a controller, and the controller controls seed change and supply and adjusts plant spacing according to a set program. Seed change and supply and plant spacing adjustment can be realized without shutdown, sowing efficiency and sowing precision are improved, and sowing requirements of the wheat seed selection garden is satisfied.

Description

technical field [0001] The invention relates to a crop seeder, in particular to a special single-grain seeder for a wheat seed selection nursery, and belongs to the technical field of agricultural machinery. Background technique [0002] The breeding of new wheat varieties is carried out in the wheat seed selection nursery. The quality of the wheat seed selection nursery test directly affects the efficiency and quality of the new wheat variety breeding. Sowing is an important part of the wheat seed selection nursery test. The number of materials (variety) is large but the sowing rate is small, and the materials cannot be mixed, and single seed sowing is required. The sowing spacing of high-generation and low-generation materials is generally different, and some breeding units use single and double spacing. Some breeding units use double and triple spacing. At present, most of the wheat breeding units in our country are artificially ditched and sown, which is time-consuming ...

AI Technical Summary

Problems solved by technology

At present, most of the wheat breeding units in our country are artificially ditched and sown, which is time-consuming and laborious and the sowing quality is not high; "Plotspider" realizes single-grain sowing by adopting the combined suction hole seeding method, but it needs to be shut down first when changing the seed, and then continue to sow after changing the seed, resulting in a longer shutdown time than the sowing time, which affects the sowing efficiency, and for wheat The sowing accuracy of this small-grain-pitch crop also needs to be further improved

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