Planting Technology Lists
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Shundou 92-51 (soybean)
1. The variety was bred by Zhang Youyi, Niulanshan Town, Shunyi District, Beijing in 1992. Original code: 92-51, parent combination: Dunzi yellow × red soybean. Approved by Beijing City in 2002. 2. Characteristics of spring-sown soybean varieties, the whole growth period of 135 days. Seedling growth robust, plant height of 70 cm, more than 4 branches, leaves for the oval, sub-limited pod habit, white flowers, pod skin brown, velutinous gray, round and yellow, shiny, some seeds have red, seeds larger, 100-seed weight 22-
2019-01-16 -
Prevention and treatment of soybean deficiency
The expression of lack of trace elements in soybean is as follows: the true leaves of spring soybean are yellow, which can be yellowed from the bottom up, there are parallel continuous or discontinuous iron patches along the veins of the compound leaves, and chlorosis extends from the tip of the leaves to the base, so that the whole leaves are light yellow, and the veins of the leaves are also green; the leaves are small and thin, easy to fall off, the stems are slender, the lower leaves of the plant are dark green, thick, uneven and long; when the scale deficiency is serious, the veins are yellowish brown, and then the whole leaves are yellow. The potassium deficiency leaves yellowed and the symptoms developed from the lower leaves to the upper leaves; the leaf margin began to produce chlorotic spots and spread.
2019-01-16 -
Scientific control of soybean aphids
Soybean aphids are commonly known as greasy worms and honey worms. It is mainly concentrated on the growth point of soybean, the top leaf and the back of young leaves, and the harm of sucking juice. It can not only cause leaf curl, plant dwarfing, reduce yield, but also spread virus disease, resulting in yield and quality decline. The insect began to appear in the soybean field in the middle and late June, and the damage was serious during high temperature and drought. Soybean aphids have great reproductive capacity, and a female can reproduce 50-60. Under suitable conditions, small aphids can give birth in about 4-5 days, and can reproduce on soybean for 15% of the year.
2019-01-16 -
Control measures of Cotton aphids in the Yellow River Basin
Aphids, also known as greasy insects and honey insects, are one of the main pests on cotton in China. Cotton aphids damaged in cotton fields can be divided into seedling aphids and summer aphids. Seedling aphids occur before emergence to budding, and the temperature is suitable for low temperature. when the temperature exceeds 27 ℃, the reproduction is inhibited and the insect population decreases rapidly. aphids that often occur from early July to mid-August are called "summer aphids". On the 3rd, the average temperature is 2428 ℃ and the relative humidity is 55% and 85%, which is beneficial to the proliferation of "aphids". The weather when it is sunny and rainy is the most suitable for the breeding of "aphids".
2019-01-16 -
Control techniques of soybean aphids
Soybean aphids belong to the family Homoptera, which is the main pest in soybean producing areas of Huachuan County. The occurrence period of soybean aphids has been advanced in the past two years, and the damage has also been aggravated. Soybean aphids tend to tender. soybean aphids concentrate on the top leaves, tender leaves and tender stems of the plant with adults and nymphs, which can not only cover the stems and leaves, but also damage the tender pods. When the plant was seriously damaged, the leaves curled, the root system was stunted and yellowed, the plant was short, the branches and pods decreased, and the 1000-grain weight decreased. If the occurrence at the seedling stage is not controlled in time, the light will be reduced by 20% to 30%, and the weight will be reduced by 20% to 30%.
2019-01-16 -
Prediction of occurrence of soybean aphids
According to the investigation results of various measuring and forecasting stations in the province, combined with the comprehensive analysis of crop growth and meteorological conditions, it is expected that soybean aphids will occur moderately in the province this year, with less Rain Water in some cities and counties with large aphids in the early stage. The peak period of occurrence and damage of soybean aphid is from mid-July to early August. 1. The occurrence time is earlier than usual. According to the monitoring of various measuring and forecasting stations and plant protection stations in the province, the aphid period was found on June 10, which was later than that of last year, but still earlier than about 10 days all the year round. 2. Effect of meteorological conditions on soybean aphids.
2019-01-16 -
Control measures of soybean aphid disease
Soybean aphid is one of the main pests of soybean. Adults and nymphs are used to suck juice on the top leaves, tender leaves and stems of soybean plants. In severe cases, it is covered with stems and leaves, which can also infringe upon tender pods, resulting in dwarfism of plants, reduction of fruiting branches and pods, decrease of 1000-grain weight, and death of the whole plant at seedling stage. If it is not controlled in time in the big year, the yield will be reduced by 20-30%. If it is heavy, the yield will be reduced by more than 50%. The main soybean producing areas in China are all distributed, while the harm is more serious in some areas of Northeast China, Henan, Shandong and other provinces. Big
2019-01-16 -
Does the application of chlorosulfuron in wheat field affect cotton?
Chlorosulfuron is a sulfonylurea herbicide with high herbicidal activity. It is mainly used to control annual monocotyledon and dicotyledonous weeds in wheat and flax fields. At present, it is only used in wheat fields in the Yangtze River valley. It is not easy to decompose in soil, and the residual period is as long as 6 months. Crops such as cotton, peanuts, soybeans and vegetables are sensitive to the drug. Different degrees of drug damage will occur when chlorosulfuron is applied in wheat fields and sensitive crops such as cotton are planted in the following crops. Wheat fields with chlorosulfuron had better not transplant cotton, but can plant other crops with strong drug resistance.
2019-01-16 -
Simple identification of poisonous mushrooms
From the color point of view, poisonous mushrooms are often bright in color, showing red, green, yellow and so on. Umbrellas often have mottled spots and filamentous or small pieces of residue or scales on the surface. The general color of non-toxic mushrooms is not bright, the cover is flat, and the umbrella surface is smooth. From the secretion point of view, poisonous mushroom cap or injured parts, often secrete Auburn thick liquid, such as spicy and other peculiar smell. It is easy to change color after the cap is torn. On the other hand, non-toxic mushrooms are generally dry, and the liquid secreted after breaking is white, with special mushrooms.
2019-01-16 -
Mushrooms with oil stains
1. Ingredients: 10kg fresh mushrooms, 5kg oil, 400g salt. 2. Processing: Put the oil into the pot and cook it until it is 80%, then put the washed and drained fresh mushrooms into the pot and refine them thoroughly, add salt; cook them with slow fire for 10 minutes, pour the oil and mushrooms into a clean container while they are hot, immerse the mushrooms in the oil, seal them in bottles after cooling, and store them in a cool place. It can be stored for 1 year. When eating, it can be cooked with fresh mushrooms.
2019-01-16