Method for jointly preventing and treating drought and late blight for spring potatoes

Abstract

The invention discloses a method for jointly preventing and treating drought and late blight for spring potatoes. The method includes steps of 1), selecting disease-resistant varieties with resistanceto the late blight; 2), establishing disease-free seed potato farmlands, to be more specific, carefully choosing disease-free seed potatoes, sowing whole tubers, carefully checking plants in plant growth periods, rooting out diseased potatoes once the diseased potatoes are found, storing the seed potatoes at the low temperatures after the seed potatoes are harvested so as to allow the harvested seed potatoes to be sown, sufficiently airing and sorting the seed potatoes before the seed potatoes are stored in cellars and spraying chlorothalonil, cymoxanil and metalaxyl on the surfaces of the seed potatoes. The method has the advantages that the disease-resistant varieties are selected, the disease-free seed potato farmlands are established, accordingly, disease sources can be reduced, and center diseased plants can be decreased; deep planting and cultivating are favorable for growth of bud seedlings, effects of protecting tubers further can be realized by means of deep planting and cultivating, the tubers can be prevented from being easily infected by fungi, accordingly, loss due to rotten potatoes can be reduced, and the germ carrying quantities of the tubers can be lowered; the drought and the late blight are jointly prevented and treated by the aid of water retaining agents and compound liquid preparations with fluopicolide and propamocarb, so that drought-resistant and disease-resistant treatment can be carried out on the potatoes, and the yield of the potatoes can be greatly increased.

Description

technical field [0001] The invention relates to the field of planting technology, in particular to a method for combined prevention and treatment of spring potato drought and late blight. Background technique [0002] In the prior art: the patent application publication number CN 104798562 A discloses a high-yield planting method for potatoes and a potato cultivation frame thereof, including a water tank, a cultivation case and a sprinkler, and the water tank and the cultivation case are connected by a support column, so The spray head is installed on the bottom of the water tank, the bottom of the water tank is equipped with a fog cover, the cultivation box is provided with a cultivation plate, and the cultivation plate is provided with a through hole. However, at present, there is no spring potato Drought, late blight joint prevention and control methods can not meet the needs of use. Contents of the invention [0003] The object of the present invention is to solve the...

AI Technical Summary

Problems solved by technology

[0002] In the prior art: the patent application publication number CN 104798562 A discloses a high-yield planting method for potatoes and a potato cultivation frame thereof, including a water tank, a cultivation case and a sprinkler, and the water tank and the cultivation case are connected by a support column, so The spray head is installed on the bottom of the water tank, the bottom of the water tank is equipped with a fog cover, the cultivation box is provided with a cultivation plate, and the cultivation plate is provided with a through hole. However, at present, there is no spring potato Drought and late blight joint prevention and control methods cannot meet the needs of use