A special coating agent for cucumber and its preparation method

Abstract

The invention provides a special coating agent for cucumbers and a preparation method thereof, the formula of which is: abamectin 2-8%, Bordeaux mixture 10-20%, fludioxonil 1-5%, gibberellin 0.01-0.015%, Na2B8O13·4H2O 0.5~3%, konjac glucomannan 1~6%, coloring agent 2~6%, and the rest is filled with clay. Superfinely pulverize the material components of the special coating agent, use a micronizer to pulverize for 5-10 minutes, and pulverize the particles to 20-120 μm. The ratio of special coating agent mass to seed mass is 1:100~1:300. It can effectively control cucumber damping-off, blight, downy mildew, gray mold, angular leaf spot, nematode and other seedling diseases and insect pests, improve the emergence rate and survival rate of cucumber, and promote the growth of seedlings at the seedling stage.

Description

technical field

[0001] The invention belongs to the field of agricultural production, and in particular relates to a special coating agent for cucumbers and a preparation method. Background technique

[0002] Cucumber is a worldwide staple vegetable, and occupies an important position in my country's protected vegetable cultivation. Due to its special farming methods, protected cultivation generally occurs secondary soil salinization, acidification, plant autotoxicity and other hazards. Due to the poor uniformity of cucumber seed germination and seedling stage, resistance to diseases and insect pests, and stress resistance, it often leads to a general yield reduction of 5-15%, and a serious yield reduction of 30-50%, which affects yield and quality. At the same time, cucumber seedlings are prone to damping-off, blight, bacterial angular spot, downy mildew, gray mold, and root-knot nematode. After wintering, it spreads in the field through irrigation, wind and rain, airflow,...

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