Planting Technology Lists
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Introduction to the characteristics of organophosphorus insecticides
Organophosphorus insecticides are the most widely used and most widely used insecticides in China, with a wide variety of varieties and different properties, but generally speaking, they have the following characteristics: (1) the insecticidal spectrum is wide. At present, some commonly used varieties of organophosphorus insecticides can control a variety of agricultural and forestry pests, and some can be used to control sanitary pests.
2018-07-16 -
Scientific use of bacterial biological insecticides
During the period from rice sowing to seedling field, farmers should focus on the prevention and control of seed-borne diseases (evil seedling disease, seedling rice blast, dry tip nematode, etc.), gray planthopper, first generation borer and so on. In the rice breaking stage, emphasis should be placed on the control of diseases and insect pests such as rice planthopper, rice leaf borer, stem borer, panicle blast, rice false smut and so on. The rice planthopper was taken as the main control object at the heading stage of rice.
2018-07-16 -
Key points for attention in the use of bacterial biological insecticides
Bacterial biological insecticide has the advantages of high insecticidal rate, no environmental pollution, safe to natural enemies, harmless to human and animal, and does not induce resistance to pests. It is a new type of protective agent popularized and used in pollution-free cultivation at present. Because its control effect mainly depends on the activity of bacteria in the agent, attention should be paid to its use.
2018-07-16 -
We should pay attention to the use of specific pesticides.
Generally speaking, the insecticidal active components of specific insecticides are different, each has its own characteristics, and it has different insecticidal mechanisms (that is, the principle of pesticides killing pests). Now the varieties that are often used in production are: acetamiprion, buprofezin, flufenuron, diflubenzuron, imidacloprid, Rui.
2018-07-16 -
How to choose the time and location for the use of pesticides
1. Chlorpyrifos is easy to cause drug damage when used in melon seedling stage, and it should be avoided in the flowering stage of some crops. two。 The pesticide of triazophos is not suitable to be used in sugarcane, which is easy to cause drug damage. 3. Because phoxim is easy to decompose in visible light, it should be avoided in watermelon growing period, radish and leafy vegetable seedling stage (even in growing period.
2018-07-16 -
Five misunderstandings should be prevented in the use of plant growth regulators
Organophosphorus insecticides are the most widely used and most widely used insecticides in China, with a wide variety of varieties and different properties, but generally speaking, they have the following characteristics: (1) the insecticidal spectrum is wide. At present, some commonly used varieties of organophosphorus insecticides can control a variety of agricultural and forestry pests, and some can be used to control sanitary pests.
2018-07-16 -
What are the characteristics of organophosphorus insecticides
(1) the insecticidal spectrum is wide. At present, some commonly used varieties of organophosphorus insecticides can control a variety of agricultural and forestry pests, and some can be used to control sanitary pests and ectoparasites of livestock and poultry. (2) the methods of killing insects are diversified, which can meet the needs of many aspects. Most varieties have contact and stomach toxicity, and some varieties.
2018-07-16 -
Techniques of spraying foliar fertilizer on fruit trees
Spraying period and dosage 1, nitrogen fertilizer should be used in the early and late growth of fruit trees, properly combined with phosphorus and potassium fertilizer. Proper spraying concentration can effectively promote shoot growth, increase fruit yield and be beneficial to flower bud differentiation. The concentration of urea is 0.2-0.3% in the early stage and 0.3-0.5% in the later stage.
2018-07-16 -
Key points for attention in the use of foliar Fertilizer in Tomato
The use of foliar fertilizer for tomato should pay attention to the following points: 1. Generally speaking, the types of nutrients should be determined according to the growth of tomato. As a result, the early plant growth is relatively exuberant and easy to grow, and foliar nutrients that promote stem and leaf growth should be used less. Potassium dihydrogen phosphate and compound fertilizer can be selected. As a result, the plant grows in full bloom.
2018-07-16 -
Matters needing attention in spraying foliar fertilizer of soybean
Foliar fertilizer spraying of soybean has the advantages of low dosage, quick effect, high fertilizer efficiency and good effect, so it has been widely popularized and applied in recent years. However, because some farmers mistakenly believe that foliar fertilizer spraying is "beneficial and harmless, the more the better", there are random selection of fertilizer types, random increase of fertilizer dosage and so on in practical application.
2018-07-16