3results about How to "Improve germination uniformity" patented technology

This invention provides an integrated soilless cultivation substrate and its supporting root-cutting biochemical induction and activation method. The substrate is a dry granular complex containing an organic framework matrix, mineral synergists, and plant-derived active components. The pores of the particles contain dormant microbial cells and organic acid salts generated by the fermentation and transformation of acid-producing microorganisms. This substrate extracts plant active ingredients and chelates mineral elements through in-situ fermentation of lactic acid bacteria. When used, only watering is needed to activate the remaining microbial cells, achieving a combination of self-slow-release nutrition and antibacterial and antiseptic properties. The supporting method includes: after cutting the roots and removing the soil, soaking the roots in the water-soaking solution of the substrate, using lactic acid to acidify and seal the wounds, osmotic pressure gradient to drive nutrient pre-storage, and mechanical and chemical stress to synergistically induce dormancy, and then activating them after cold shock treatment at 0-8℃. This invention can shorten the cold shock time by 50%-80%, and new roots will sprout 3-7 days after removal from storage. It is suitable for soilless cultivation and factory seedling production of various high-value crops such as blueberries, dendrobium, bayberries, rice, and soybeans.

The invention provides a seed density selecting and grading device and method.The device comprises a liquid quantitative preparation module, a density separation module, a liquid recycling module and a liquid suction filtration module, and the liquid quantitative preparation module is used for preparing liquid with the preset density and conveying the liquid to the density separation module; the density separation module is provided with a bin body for separating seeds with different densities, the density separation module conveys the separated seeds to the liquid recycling module, the liquid recycling module separates the seeds from liquid, and the separated liquid is conveyed to the liquid suction filtration module; and the liquid suction filtration module is used for filtering the liquid to realize recycling. The device is highly automatic, rapid seed-liquid separation, rapid seed drying and high-efficiency liquid recovery are realized, manual intervention is reduced, the working efficiency and accuracy are improved, and the labor intensity and the cost are reduced. By utilizing the buoyancy characteristic of liquid, the same batch of seeds can be accurately divided into a plurality of layers according to the density, and the germination uniformity of the seeds is obviously improved.

This invention discloses a phased synergistic rejuvenation method for degenerated second-generation lily bulbs. The method is as follows: 1) Sprouting pretreatment: mainly based on temperature regulation, combined with exogenous hormones and biological agents; 2) Seedling management; 3) Cultivation management stage treatment: including physical regulation, fertilization management, and rhizosphere biological agent treatment. This invention constructs a two-stage continuous regulation system of "sprouting pretreatment - cultivation management" to break dormancy and initiate sprouting in degenerated bulbs, improve sprouting uniformity and subsequent bulb enlargement, thereby improving the reuse efficiency and rejuvenation quality of degenerated bulbs.