Planting Technology Lists
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Four aspects of attention in the use of Bt insecticides
Bt is a bacterial insecticide, which belongs to a variety of Bacillus thuringiensis. It has a good effect on the control of Lepidoptera larvae. First of all, we should pay attention to the quality of Bt, generally requires more than 10 billion spores per milliliter (or 1 gram), the application concentration is 500 million 700 times, if the product.
2018-07-15 -
The best use of BT insecticide
BT insecticide, namely Bacillus thuringiensis microbial insecticide, contains parasporal crystals and spore toxins that kill pests. It is safe to people and animals, has no harm to natural enemies, and is difficult to produce drug resistance. It has been widely used to control crop pests. However, in practical application, due to the lack of methods,.
2018-07-15 -
Application of Plant growth regulators in Fruit production
Breeding obstacles and Countermeasures-Application of growth regulators in Watermelon growth Regulation; improve seed vigor-regulate plant growth-increase fruit setting rate-accelerate fruit ripening-prevent fruit cracking-postharvest preservation to improve seed vigor watermelon is cultivated in winter and spring with low air temperature. poor environment, slow and uneven emergence. Adopt the department of Chinese agriculture.
2018-07-15 -
How to use plant growth regulators for flowers and trees
Plant growth regulators play an important role in regulating the growth of flowers and plants, preventing overgrowth, promoting rooting, cultivating strong seedlings, controlling sex differentiation, preventing flowers and fruits from falling, enhancing resistance, storage and preservation and so on. But different plant growth regulators are used because of the type, object, purpose and plant.
2018-07-15 -
How to rett biogas rot phosphate fertilizer
The amount of phosphorus uptake of rape was the highest at bolting stage, but the effect of phosphorus utilization and yield increase was the best at seedling stage. Because phosphorus can be used repeatedly in rape, the earlier the absorption period is, the greater the efficiency is. The application of phosphate fertilizer can promote the growth stage, 2-4 days earlier in seedling stage, 2-6 days in bolting stage, and 1-2 days in mature stage.
2018-07-15 -
The key point is to apply phosphate fertilizer to rape at seedling stage.
Rape is a crop that needs more boron. Lack of boron at the seedling stage, the root system stops growing, there is no root hair or no lateral root, the growth point changes from brown to scorched and dies; timely application of boron fertilizer plays an important role in high yield and good quality of rape. The specific method is: boron fertilizer as base fertilizer is directly applied to the soil, which can be used in rape.
2018-07-15 -
No mixed use of zinc fertilizer and phosphate fertilizer
The application of phosphate fertilizer is very important for high quality, high yield and rich wheat. Why do you say that? First, phosphorus plays a role in ensuring the high yield and high quality of wheat, but the content of available phosphorus in some cultivated land is on the low side; second, at present, the ways and methods of applying fertilizer are not scientific enough, so it is said to increase the application of phosphate fertilizer and family.
2018-07-15 -
How to apply phosphorus Fertilizer to Wheat
Wheat is a crop that needs more phosphorus. Scientific application of phosphate fertilizer is one of the key measures to improve the efficiency of phosphate fertilizer, reduce the cost of fertilization and promote high quality and high yield of wheat. 1. After composting and fermentation with organic fertilizer, the application of organic fertilizer is rich in organic matter, phosphoric acid and a variety of organic weak acids, which can turn insoluble phosphorus into soluble phosphorus.
2018-07-15 -
Biological insecticides and fungicides suitable for flowers
In flower production, the use of biological pesticides to control diseases and insect pests is safe and environmentally friendly, which is very popular with flower farmers in the market. Here are several commonly used insecticides and fungicides. Nicotine commonly used is 10% nicotine EC, which is widely used to control shell insects, red spiders, aphids, whitefly and other pests in many flowers and plants.
2018-07-15 -
Notes on the use of bacterial biological insecticides
In order to achieve the best insecticidal effect in the use of pesticides to control crop pests, we must select the right insecticides and use them in an appropriate period, and at the same time, according to the three factors that affect the efficacy, we should pay attention to solve the two problems which are easy to be ignored, such as timely application and delivery. 1. Three factors that affect the efficacy. 1. Climate. Shi.
2018-07-15