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What are the types of preservatives?
What are the types of preservatives?
2018-07-04 -
Main herbicides and their application methods in wheat field
Main herbicides and their application methods in wheat field
2018-08-09 -
Control measures of Weed growth in Wheat Field with serious damage
Control measures of Weed growth in Wheat Field with serious damage
2018-07-14 -
What should be paid attention to when chemical weeding is used in corn field?
What should be paid attention to when chemical weeding is used in corn field? At present, chemical weeding area in corn field accounts for about 70% of corn planting area. Most herbicides used in production are atrazine plus acetochlor or its compound. However, atrazine has long residual effect and poses a threat to the safety of subsequent crops.
2018-07-14 -
When is the right time for wheat herbicide?
Wheat herbicides are generally best sprayed when the soil moisture reaches 40%-60%. When spraying, be sure to control the amount and if there is a cooling within 3 days before the use of the drug, do not spray to avoid failure. The available agents are dimethyl disulfuron, fluazosulfuron and oxazole grass.
2020-11-09 Wheat herbicide when hit fit wheat -
How to prevent and cure the drug damage of Schisandra chinensis
In recent years, the chemical harm of a large number of Schisandra chinensis plants planted in various places has occurred from time to time, the light ones reduced the yield, and the heavy ones caused the total yield and harvest in the whole garden, which should be paid enough attention to. The common acute drug damage of Schisandra chinensis is mainly caused by improper application and pesticide drift. The drug damage of Schisandra chinensis caused by pesticide drift is mainly caused by the use of 2mae 4muryl D herbicide in corn and wheat fields. Wu Zhongsheng planted 100 mu of Schisandra chinensis in Xiagou Village, Wangshi Town, Haicheng City, and suffered drug damage caused by the drift of 2meme 4muryl D butyl ester, resulting in the total yield and harvest of the whole garden that year. Effect of Schisandra chinensis on herbicide 2pm 4
2019-01-16 -
There is a simple way to castrate a rooster.
One is broiling castrated chicken. First, Baoding, pull out the feathers around the glandular fat hole, cut the protruding parts of adenyl ester flat with scissors, and then apply thermal stimulation to the quasi-adenyl ester point with ignited incense or red-hot round wire, the stimulation method is rhythmic intermittent stimulation, that is, stimulation, immediately leave, and then leave, so repeated, until the abdominal fat hole does not bleed, there is scorched skin. The other is castration with traditional Chinese medicine. Feed the rooster with Schisandra chinensis and white pepper. Weight 5
2019-01-16 -
Causes of herbicide damage of Schisandra chinensis
Chemical herbicides are widely used because of their advantages of low investment, quick effect and labor saving. The types of herbicides are increasing year by year, and the amount of herbicides used is increasing continuously. Although the agricultural department has done a lot of publicity and training on the use of herbicides for farmers, according to the recent investigation of the Beijing Drug Office and Yichun Plant Protection Station, due to the influence of the drift of herbicide droplets, the problem of drug damage to Schisandra chinensis planted nearby is particularly prominent. According to the North Pharmaceutical Office and Taoshan Forestry Bureau of Tieli City, Heilongjiang Province
2019-01-16 -
Field management scheme of winter wheat returning to green period
Field management scheme of winter wheat returning to green period
2018-07-01 -
The phenomenon of falling flowers and fruits of Schisandra chinensis
1. Falling flowers caused by herbicide damage. ⑴ symptoms: new functional leaves curled in spring, serious leaves were black, withered and fell off, herbicide drift occurred in flowering, petals wilted, petals fell off early, pollen vigor decreased or died, pollination was difficult, and flowers did not bear fruit; ⑵ causes: 2mae4 color D butyl drug damage; ⑶ preventive measures: ① recommended using 2mae4murD isooctyl ester instead of 2mae4ray D butyl ester. ② found that the symptoms could be sprayed with 500x yellow humic acid foliar fertilizer. II. Introduction of low temperature and freezing injury
2019-01-16 -
The latest field management scheme of winter wheat returning to green
The turning green period of wheat is the key period for the production of spring tillers and the formation of new roots in spring. If it is not managed properly, it will easily lead to the contradiction between aboveground growth and underground growth, as well as the contradiction between effective tillers and ineffective tillers, affecting the robust growth of wheat seedlings. In order to
2020-11-10 The latest winter wheat turning green period field management program wheat -
Detailed explanation & lt; dihydropyridine, tocopherin, dihydropyridine lipid & gt
Detailed explanation & lt; dihydropyridine, tocopherin, dihydropyridine lipid & gt
2018-07-10 -
A good recipe for beating pear planthopper
During the dormancy period of overwintering adults in the middle of March, 1500-2000 times of acephate soluble granules can be sprayed, and 4000-5000 times of 240g/L snail ethyl ester or 90% acephate soluble granules can be sprayed in the case of serious pear planthopper occurrence.
2020-11-09 Pear planthopper yes good formula in March mid-March overwintering adult -
Harm of herbicides to Schisandra chinensis
1. Soil residual drug damage 1. Symptoms. In the middle stage of growth, the leaves wilted, the leaves recovered straight in the morning and evening, the plants were not long, similar to drought, and the root system developed slowly. 2. The reason. Drug damage of triazobenzenes, sulfonylureas, Imidazolinones, etc. 3. Preventive measures. In ⑴, Schisandra chinensis can not be planted in the cultivated land where long residual herbicides such as triazobenzene, sulfonylurea and Imidazolinone have been used. ⑵ found that the symptoms can be irrigated with 500x solution of Kangpu Capuke, sprayed with wall protection on leaves, and Yechui.
2019-01-16 -
Technical measures for weeding in wheat field
Technical measures for weeding in wheat field
2018-07-01 -
Distribution and best control methods of weeds in corn fields in China! (comparative table of weed control effects of all kinds of herbicides)
According to the results of the national survey of weeds, there are 43 species, 38 genera, 22 families in the corn field. The main harmful weeds in corn field are: Magnolia mandshurica, barnyard grass, dogtail grass, sagittaria, amaranth, purslane, iron amaranth. Li (fennel), thistle (large thistle and small thistle), field spiral flower, duckfoot grass
2020-11-09 China corn field weeds fields weeds distribution and best -
How to use herbicides after wheat emergence?
How to use herbicides after wheat emergence? Please guide and summarize the experience of chemical weeding in wheat fields. Different wheat seedling conditions and subsequent crops should be distinguished, and different chemical herbicides should be selected. The following herbicides can be selected: wheat alkynyl ester, that is, 15% alkynyl ester wettable powder. Mainly control a variety of crops.
2018-07-14 -
List of annual medication for peach trees
During the first red period, stone-sulfur mixture was used in the first 15 days or so. Clean up the peach orchard: use chlorpyrifos or 1000-1500 times liquid Bixiudan or 1500 times liquid difenoconazole to control diseases and insect pests. Second dew stage: using mancozeb with 700,800 times solution or snail ethyl ester with 7000 times solution or
2020-11-08 Peach tree year-round medicine table summary one dew red period before 15 days -
Control techniques of weeds in wheat field before winter
Control techniques of weeds in wheat field before winter
2018-07-10 -
Wheat weeding time, when is the right time to administer medicine
Weeding for wheat is generally chosen from turning green to before jointing, that is, from late February to mid-March. Before taking medicine, we should first observe the local weather forecast and choose sunny weather without rain, snow and strong wind. The daily average temperature is stable at 6 ℃-10 ℃, at 10:00
2020-11-08 Wheat weeding time when medication appropriate summary to