Method for preventing and controlling potato diseases by soaking seeds

Abstract

The invention discloses a method for preventing and controlling potato diseases by soaking seeds. The method comprises the following steps: selecting high-yield high-quality seed potatoes without pestor mechanical harm and suitable for local cultivation; airing the seed potatoes for 1-2 days and then performing seed-cutting treatment; preparing a 25g.L-1 fludioxonil suspended seed coating into aliquor diluted for 200 times by adopting a secondary diluting method and filling a bucket-shaped container; putting the cut seed potatoes into a plastic net bag, fully soaking in the prepared seed-soaking liquor, soaking for 20-25 minutes and then taking out the seed potatoes; and drying the liquor, airing in a shade place till the seed potatoes are free from water, and sowing in a conventional manner. Compared with the present method for preventing and controlling the diseases in the growth period, the method disclosed by the invention has the advantages that the seedling emergence of the potato is 3-5 days advanced, the emergence rate is increased by 8-10%, the preventing effect is increased by 15-20% and the commodity rate of the potato is obviously increased. The black nevus disease ofthe potato can be effectively prevented and controlled and the prevention effect for the traditional diseases, such as, the potato wilt, is obvious.

Description

technical field [0001] The invention relates to the field of agriculture, in particular to a method for preventing and treating potato diseases by soaking seeds. Background technique [0002] Potato is an important grain, vegetable, and feed crop, as well as an important industrial raw material. Potato has strong adaptability, wide distribution, strong resistance, high nutritional value, great potential for increasing production, and long industrial chain. Occupying a pivotal position, potatoes are the fourth largest staple food crop after wheat, rice and corn in my country. As the area of ​​cultivated land decreases, the pressure on water resources increases, and the comparative efficiency of bulk food supply decreases. Since 2015, my country has implemented the potato staple food strategy, and the potato industry has developed rapidly. It is estimated that 50% of potatoes will be consumed as staple food by 2020, realizing the current transformation of potatoes from non-sta...

AI Technical Summary

Problems solved by technology

Due to the damage of pests and diseases, the yield per unit area of ​​potatoes is low, the quality is poor, and the commodity is poor. The average yield per mu is only about 1,000 kg.

[0004] Potato black mole and other soil-borne diseases are newly introduced dangerous diseases in recent years. The disease can occur during the whole growth period of potatoes. The disease at the seedling stage will cause the death of the terminal buds, resulting in the lack of seedlings and broken ridges; Short or clustered at the top, the potato pieces become deformed and small, and black spots appear on the surface, seriously affecting the yield and quality, making it difficult to control and cause heavy damage and loss

At present, the prevention and treatment of potato moles is mainly by spraying pesticides during the growth period, which has little control effect and high labor costs.