Potato microtuber pellet substrate formula and preparation method thereof

Abstract

The invention discloses a potato microtuber pellet substrate formula and a preparation method thereof. The preparation method comprises the following steps: by using 2-5% of sodium alginate and 1-5% of chitosan as adhesive, adding 1-2 times of improved MS (Murashige-Skoog) nutrient solution and exogenous plant growth regulation substances (NAA (naphthyl acetic acid), 6-BA (6-benzylaminopurine) and the like); and by using 10-15% of attapulgite powder, 70-80% of vegetable garden soil, 5-10% of organic fertilizer and 3-5% of plant cellulose as powder agents, adding 0.1-1% of water retention agent and 0.12-0.2% of bactericide, and compounding according to certain chemical and physical methods to obtain the potato microtuber pellet substrate formula. According to the potato microtuber pellet substrate formula, the potato microtuber is pelletized by a certain pelletizing technique. Thus, the invention improves the microtuber germination / growth microenvironment, and has the effects of regulating growth, providing nutrients, retaining water, preventing diseases and slowing release; and meanwhile, the materials selected by the formula are economical and applicable, the preparation procedure is simple and quick, and the operation procedure is convenient and easy to learn.

Description

technical field [0001] The invention relates to the technical field of seed coating, in particular to a formula of a test-tube potato pelleting matrix and a preparation method thereof, which are mainly used for pelleting test-tube potatoes. Background technique [0002] The direct sowing and cultivation of potato in test-tube field soil can eliminate the complicated production link of using net shed, soilless culture substrate (vermiculite) test-tube seedling transplanting and breeding virus-free mini-tuber (original seed) in the potato seed potato breeding system, Thus, the breeding cost of virus-free seed potatoes will be greatly reduced. At this stage, the high-efficiency cultivation technology of potato in test-tube field soil is still blank. At present, there are the following problems: 1. Due to the difference in the time sequence of test-tube tuber tuber tuber, there are inconsistent dormancy breaking times, and the corresponding germination is not neat; The dorman...

AI Technical Summary

Problems solved by technology

At present, there are the following problems: 1. Due to the difference in the time sequence of test-tube tuber tuber tuber, there are inconsistent dormancy breaking times, and the corresponding germination is not neat; The dormancy period is prolonged; 3. The test-tube tubers of potatoes are extremely small and uneven, with a diameter of 2-6mm, and the seedlings are difficult and uneven for direct seeding in soil; 4. The test-tube tubers of potato have high moisture content and less dry matter accumulation, and the nutrient supply for direct seeding in soil is insufficient. Poor vegetative growth in the early stage affects the yield of seed potatoes in the later stage

[0003] At present, seed coating or pelleting of bulk crops is a mature technology, but vegetatively propagated crops include potatoes, and the control of soil diseases and insect pests in production is often used as seed potato soaking Or seed dressing treatment, it has been reported that the seed coating agent of conventional seed potatoes is only the type of disease prevention and yield increase, while the pelleting of conventional seed potatoes and test-tube potatoes has not been reported in the literature