Seeding/reseeding improving machine tool and method for high-firmness degraded grassland composite soil layer

Abstract

The invention relates to a seeding / reseeding improving machine tool and method for a high-firmness degraded grassland composite soil layer. The machine tool comprises a rack, a profiling furrowing device, a seeding device, pressing devices, a reduction gearbox and a transmission device. The profiling furrowing device comprises a left profiling furrowing single body and a right profiling furrowingsingle body; a profiling land wheel and a ground breaking mechanism with the adjustable ground breaking depth are coaxially arranged between a profiling ditching left side plate and a profiling ditching right side plate; the ground breaking mechanism is driven by the reduction gearbox through the transmission device to actively rotate to break ground, and the ground breaking mechanism and the profiling land wheel rotate in a differential manner; the seeding device comprises a seed box, an outer grooved wheel seed metering device, a seed metering shaft, a seed guide pipe and a seed falling pipe; and the plurality of pressing devices in one-to-one correspondence to seed falling pipes are fixedly connected to the rear end surface of a fixed beam. Degraded grassland seeding / reseeding improvement operation is carried out in a low-disturbance manner, the ditching depth is uniform and consistent during operation, the earth surface damage degree is small, earth surface disturbance is small, and the problem of miss-seeding caused by sliding of the land wheel is solved.

Description

technical field [0001] The invention belongs to the field of grassland ecological improvement, and in particular relates to a seeding / supplementing improvement machine tool and method for a compound soil layer of degraded grassland with high firmness. Background technique [0002] The natural degraded grassland is mainly manifested in the retrograde succession of grassland vegetation, the invasion of dominant weeds, and the formation of a compact soil-root composite soil layer structure in the subsurface layer of the grassland, resulting in a large-area compaction degradation trend of the grassland. The decline hinders the effective performance of its ecological service function. Sowing (re-seeding) is one of the effective ways to improve degraded grassland, but most of the existing sowing (re-seeding) equipment and key tillage components are used on farmland, and when applied to grassland, it is easy to cause large surface disturbance of grassland. , The degree of vegetati...

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Problems solved by technology

[0003] In view of the above-mentioned technical problems, the purpose of the present invention is to provide a kind of seeding / reseeding improvement equipment for the compound soil layer of degraded grassland with high firmness, so as to solve the soil turning caused by traditional farmland seeding / reseeding equipment and tillage parts when working on the grassland. , Large surface disturbance and damage, uneven trenching depth, ground wheel slippage lead to missing seeding problems, used to restore degraded natural grassland, improve grassland ecology, improve grassland productivity and pasture quality, and enhance the ecological service function of natural grassland

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