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Detailed Explanation of High-Efficiency Cultivation Techniques for Potatoes with Three-Layer Film Mulching
In early spring in the Lunan region, potatoes are cultivated with three-layer film mulching - a large arch shed with small arch sheds inside and plastic film covering the cultivation ridges. The harvest period is around late April, about 40 days earlier than open-field potatoes reaching market, with a price of up to 4 yuan per kilogram; generally, 667 sq m yields 2000-2500 kg of tubers, with an income of 8000-10000 yuan. The main cultivation techniques are introduced as follows: 1. Select good varieties. For three-layer film mulched potatoes, early-maturing varieties with a short dormancy period, early tuber formation and resistance to rot should be selected, such as Luyin No. 1, Jinshu No. 8 and Zaodabai, etc.
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How can high yield be achieved in delayed autumn cultivation of potatoes?
Delayed autumn cultivation of potatoes means that potatoes planted in the open field are covered with a shed and plastic film before the arrival of early frost, so that they are protected from early frost damage, make full use of late autumn light conditions, extend the potato growth period, increase yield, improve market quality, and achieve high yield and high efficiency. 1. Site selection: Choose plots with loose, slightly acidic soil, rich in organic matter, deep plow layer, and easy drainage and irrigation. The previous crop is best to be millet, wheat, or corn; for vegetables, the previous crop is best to be scallions, garlic, celery, or carrots. Remember that continuous cropping must not be practiced, and the previous crop must not be a plot of Solanaceae crops, in order to reduce potato diseases and
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Detailed Explanation of the Double-Row High-Yield Potato Cultivation Technique with Ridging
The double-row high-yield potato cultivation technique with ridging is a comprehensive high-yield potato cultivation technique based mainly on deep loosening, ridging with deep fertilizer application, and rational close planting in double rows. It generally increases yield by more than 15% compared with conventional flat-bed cultivation, and raises the marketable rate of qualified tubers by more than 20%. Main technical points: 1. Select suitable varieties. At present, the main varieties promoted for planting in the south are Sishu No. 1, Atlantic, Jinkou 303, Holland No. 7, Holland No. 15, Dongnong 303, Kexin No. 4 and other early-to-mid maturing, high-yield, high-quality potato varieties. 2. Strictly select the site and prepare the soil finely. Select
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Green copper emulsion is highly effective against rice bacterial leaf streak
In an average epidemic year, the control efficacy reaches 85-91%, which is 10-15 percentage points higher than that of Japanese-made chlorothalonil. Method of use: in an average epidemic year, spraying twice is sufficient. The first spray is applied at stages 2-4 of young panicle differentiation in rice; 7 days after treatment the disease tends to stabilize, new acute lesions decrease significantly, and the original lesions stop developing after turning yellow. The second spray is applied 10 days later, using 100 mL of 12% green copper emulsion per mu each time, diluted 500-600 times for spraying. After 20 days, the rice leaf color turns noticeably greener, and the newly emerged flag leaf and the second leaf from the top have no
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Raising red worms as feed for turtles and soft-shelled turtles delivers high economic returns
In turtle and soft-shelled turtle breeding ponds, small red worms often appear, swimming in clusters and sheets on the pond surface and in the corners, forming a layer of red water bloom on the water surface. The real name of the red worm is Cladocera, and it is a type of zooplankton in water bodies. It is composed of many planktonic flea species, with an average body length of about 1 mm. The normal body color of Cladocera is grayish white; it turns red only when the water is lacking oxygen, which is why red worms are mostly found in foul ditches. When large numbers of red worms are found in a turtle or soft-shelled turtle pond, it indicates that the pond water has begun to deteriorate,
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High temperatures and high humidity: be on guard against Haemophilus parasuis disease
As temperatures rise and humidity increases, the incidence of bacterial diseases in pig herds will rise, and there is all the more need to be on guard against Haemophilus parasuis infection. Haemophilus parasuis infects only pigs and can affect young pigs from 2 weeks to 4 months of age, mainly causing disease around weaning and during the nursery stage, usually seen in pigs of 5 to 8 weeks of age, with an incidence rate of 10% to 15%, and in severe cases the mortality rate can reach 50%. Acute cases often first occur in pigs in good body condition. Affected pigs have fever (40.5 to 42°C), depression, reduced appetite, difficulty breathing, abdominal breathing
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How to Achieve Early Maturity and High Yield in Soybeans
1. Choose suitable varieties. When selecting seeds, choose varieties with shorter plant height that can be planted at wider spacing; these varieties have relatively lower water requirements and suffer less yield loss in dry years. 2. Strengthen field management and weed promptly. Weeds compete with soybeans for fertilizer and water, affect photosynthesis and hinder ventilation, so weeds must be removed promptly. Cultivate and hill up at the right time. When cultivating and hilling, cultivate deeply and hill up plenty of soil to enhance soil permeability and its capacity to retain water and fertilizer. 3. Apply sufficient base fertilizer. On the basis of applying farmyard manure, the amount of chemical fertilizer applied must not be
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How does the three-high soybean elite variety Liaodou 22 perform?
Liaodou 22 is a new "three-high" (high yield, high oil, high protein) elite soybean variety bred by the Crop Research Institute of the Liaoning Academy of Agricultural Sciences. As early as 1995, using Liao 8878-13-9-9 as the female parent and 93010-1 as the male parent, it was developed through sexual hybridization and pedigree selection over 11 years, and was approved by the National Crop Variety Approval Committee in 2006. 1. Characteristics and traits: well-developed root system, strong stems, dark green leaves, elliptical leaflets, main stem with 17.7 nodes,
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How to grow soybeans in Northeast China? Main recommended high-oil, high-yield varieties and techniques
The Northeast high-oil, high-yield soybean demonstration project implemented by the state, after two years of development, has introduced a group of excellent high-oil soybean varieties and advanced production techniques, which are gradually being widely applied in large-scale production. On this basis, the Northeast high-oil, high-yield soybean demonstration technical expert group offers the following recommendations for the seed and techniques used in high-oil soybean production in the region in 2004: In 2004, Heilongjiang Province and its reclamation areas can, according to the accumulated temperature and production conditions of different regions, continue to use the high-oil varieties that had already been successfully promoted in large-scale production in 2003,
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High-yield soybean Kaidou No. 4 improved from an American variety
Kaidou No. 4 is a high-yield, high-quality new soybean variety developed by Kaifeng Zhengda Company of Henan Province, with the support of the State Administration of Foreign Experts Affairs, from advanced-generation lines introduced from the United States, through irradiation treatment and systematic selection. Determinate podding habit. Plant height 75 cm. 6-8 branches per plant. Leaves ovate. White flowers. Seeds yellow, brown hilum, oval. 100-seed weight 15.6 g. Contains 42.1% crude protein and 2.03% fat. Medium maturity, summer-sown growth period 110 days. Outstanding features include dense podding; high yield, 200-400 pods per plant, generally 250
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