Planting Technology Lists
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Why is it forbidden to use insecticides in litchi flowering period?
Experimental research and production practice have proved that the pollination of litchi at flowering stage is the guarantee of high yield of litchi, and the honey brewed by bees collecting pollen is also a natural health food for human beings. In order to prevent bee poisoning and honey pollution, ensure that there are enough workers to collect nectar, improve the effect of pollination and protect human health.
2018-07-15 -
Talk about the use of BT insecticide on vegetables
It is reported in the newspaper that BT insecticide is used to kill pests. Many vegetable farmers called, some asked how to use BT pesticides, and some talked to reporters about the experience of using BT pesticides in vegetable production. The reporter sorted out the experience of the vegetable farmers who called. BT insecticide, that is, Bacillus thuringiensis.
2018-07-15 -
Spraying time of rice insecticides
It is the basic common sense that farmers do not spray insecticides on rainy days, but many farmers often spray them at noon on sunny days, which is very undesirable and harmful, because: 1. At noon, the light is strong. Pests hide in the back of leaves and stems, and the insecticidal effect is poor. 2, the medicine swings late under high temperature and strong light.
2018-07-15 -
If watermelons are sweet, they must be fertilized with potash.
According to the investigation, the problem of the imbalance of nitrogen, phosphorus and potassium in melon soil is more prominent at present. Watermelon is a crop that needs potassium. The application of potassium fertilizer can increase the sugar content of fruit. When potash fertilizer is applied to watermelon, it is generally 18 kg per mu of potassium sulfate, that is, 3 kg of base fertilizer per mu and 8 kg of topdressing at seedling stage.
2018-07-15 -
Potassium fertilizer can make grape fruit sweet and big
Spraying potassium fertilizer outside the roots is the main way to apply potassium fertilizer in grape growing season, because it has many advantages such as fast absorption, good fertilizer efficiency and timely supply. Spraying potassium outside roots in combination with pest control saves labour. Grape is a potassium-loving fruit tree. Under the condition of potassium deficiency, the yield of potassium fertilizer is higher than that of no potassium fertilizer, and the sugar content is higher.
2018-07-15 -
Special insecticides for melon crops
In the process of melon crop growth, for the pests often encountered, which are the special pesticides, that is, low toxicity, the pesticides that will not cause serious residue problems of melons are introduced as follows. 1. Kill aphid pine. Also known as aphid repellent. Organophosphorus insecticides with high efficiency and low toxicity have contact and internal absorption effects. In the melon aphid.
2018-07-15 -
Safe use of long residual herbicides
The main weeds in corn field are: Equisetum equisetifolia, Setaria angustifolia, Chenopodium, Amaranthus, Amaranthus, amaranth, purslane, amaranth, abutilon, wild.
2018-07-15 -
The key to the cultivation of spice crops is the skillful use of herbicides
What is a herbicide? How many categories are there? Chemical pesticides used to control all kinds of weeds in the field are called herbicides. Herbicides can be classified according to their mode of action, transferability in plants, methods of use and chemical structure systems, etc. (1) systematically classified according to chemical structure: it can be divided into inorganic herbicides, mineral oil herbicides,.
2018-07-15 -
How to avoid drug damage caused by herbicides
1. In order to select herbicide varieties correctly, it is best to do experiments on unfamiliar varieties or varieties that have not been used locally. two。 The use of safety agents to prevent drug damage. For example, corn field can be protected from sulfur by using NA (1 minute 8-naphthalene dicarboxylic acid ester) antidote before sowing and seed coating with 0.5% sodium chloride 1.0%.
2018-07-15 -
Introduction to the characteristics of special herbicides for licorice
With the adjustment of agricultural industrial structure, the area of planting greenhouse crops is getting larger and larger. However, because the temperature and humidity conditions in the plastic greenhouse are quite different from the external environment, such as the use of pesticides in the conventional state, it is easy to cause drug damage. In order to reduce the occurrence of drug damage, attention should be paid to the application of herbicides in the greenhouse.
2018-07-15