Selection of land preparation, seed propagation and pest control
White peony can also be called white flower peony, belonging to the genus Peony, which is rooted in medicine. It has the functions of nourishing blood, passing through, sputum and stopping bleeding. It can be used to treat diseases such as hypertension and hepatitis B in Henan and Shandong. It is also cultivated in Shaanxi, Guizhou, Hunan and other places. The key point of today's Xiaobian is the site selection, seed breeding, and pest control of white carp planting.
First, land preparation and land preparation
Choose the irrigation and drainage, the ventilation is sunny, the soil layer is deep, and the soil is fertile. The soil is planted in the loam. Before planting, the tillage is carried out 1 or 2 times, and the depth is 30-60 cm. The application of manure or compost is 2500-4000 kg per mu. The base fertilizer is then ploughed and flattened to make a flat shovel of 120-210 cm wide. The shovel is used for irrigation and drainage ditch, and the ditch is deep and wide 21 to 24 cm.
Second, planting
1, bud head planting
Budding is a common method of production. At the time of harvest, the white bud head is cut from the root, and then the strong bud head is cut into small pieces, which can be planted in September-October; the planting row spacing is 45 cm × 45 cm, and 4000 to 4500 plants per acre are planted; Each hole is applied with 0.5 to 1 kg of decomposed farmyard manure as base fertilizer, and 1 to 2 buds are placed in each hole, and then the soil is fixed into small mounds.
2, seed breeding
The seeds mature in August and can be planted at the same time as picking. After planting in September, pay attention to heat preservation and moisturization. After 2 years of growth, the seedlings will be planted in Daejeon.
Third, the growth management
1. Cultivating weeding
In the second year after planting, after thawing in early spring, the loose soil will protect the seedlings, which will be beneficial to the emergence of seedlings; after the emergence of the seedlings, weeding 4 to 6 times before the ridges are closed, after the rain or after the watering, loosen the soil to prevent soil compaction; October Before the ground freezing, cut off the leaves at 6-9 cm from the ground and fertilize the soil by 12-15 cm to facilitate wintering.
2, top dressing
In the second year after planting, 3 times of topdressing: from late March to late April, the application of manure and urine; in late April, 500 kg of human excrement was applied per mu; in October and November, fertilization was mainly applied to per mu. Fertilize 3 to 5 kg.
In the third year, the plant grows up: usually, in March, 750 kg of human manure + 50 kg of decomposed cake fertilizer and 25 kg of superphosphate are applied per mu; in April, the amount of manure per acre is increased to 1000 kg; Apply 3 to 5 kilograms of manure in November.
The fourth year: In March, 1000 kilograms of human excrement, 10 kilograms of ammonium sulfate, and 25 kilograms of superphosphate were applied per mu. In April, the fertilizer was applied once more in April.
3, irrigation and drainage
White cockroaches are resistant to drought and water, so they are only watered during special droughts. In rainy days, water should be drained in time to prevent rotten roots.
4, remove the flower buds
When the spring is budd, the flower buds are removed in time to concentrate nutrients.
Fourth, pest control
1, purple spot disease
Mainly harmful to the leaves; prevention and treatment: before the onset and early onset, spray 1: 1: 100 Bordeaux mixture or 70% methyl thiophanate 1000 times solution.
2, gray mold
For damage to leaves, stems and flowers, the flowers become brown after being damaged, and a layer of gray mold is produced; control methods: rotation and deep turning; selection of disease-free seed buds; spraying 1: 1:100 Bordeaux mixture at the beginning of the disease.
3, rust
In the early stage of the disease, spray 0.3 to 0.5 wave of sulphur stone sulphur mixture to prevent and control.
4, cockroaches, crickets, golden worms and tigers
The light traps the adult; the seed dressing is carried out with 75% phoxim emulsifiable concentrate at a seed rate of 0.1%; and the insect attack period is watered with 90% trichlorfon 1000 times liquid or 75% phoxim emulsifiable concentrate 700 times liquid.
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