Site selection and preparation: Castor has strong adaptability and can be planted on all types of land. Start plowing the land 4-6 weeks before sowing to allow the soil to mature. Planting and selection: Select the earliest mature fruits from vigorously growing plants, pick them, and dry and preserve them. Precision sowing: Generally sowing from the first stage of the hibernation to the beginning of summer, divided into direct seeding and transplanting. Fertilization method: Nitrogen fertilizer is the main fertilizer in the early growth period, and potassium fertilizer is the main fertilizer after flowering. Yield of castor: The yield per mu is about 200-250 kilograms.
1. Planting of castor beans
1. Land selection and preparation
(1) Castor beans are highly adaptable and can be used in all types of land. For planting, sporadic planting can be carried out by using the gaps beside ditches and roads, in front of and behind houses, or in large areas on barren hills and slopes.
(2) When planting in patches, the soil should be plowed 4-6 weeks before sowing to allow the soil to mature. Sporadic planting also requires plowing the ground in advance and digging the ground deep. , holes 35 cm wide each.
(3) Because castor is afraid of water damage, if you choose to plant it in a low-lying area, you must change the land to a platform in advance and open drainage ditches.
(4) If castor is planted in wasteland, the slope should be changed into a terraced platform surrounding the mountain to preserve water and soil and prevent soil erosion.
2. Planting and selection
(1) Before harvesting, select castor plants that grow vigorously, have many branches, and bear early fruit, and then pick the ones with the most fruit and the earliest maturity. Come down and place in the sun to dry and thresh.
(2) After drying, put them into baskets or bags, and store the seeds in a dry and ventilated place.
(3) If conditions permit, it is best for growers to purchase high-quality seeds from scientific research and production units.
3. Precision sowing
(1) Castor is generally sown from the start of the night to the beginning of summer, but there are also time differences in different regions.
(2) Generally, sowing occurs earlier in some provinces and regions in South China and Southwest China, while in East China and North China, sowing is generally carried out from April to May.
(3) Sowing can be carried out in spring, summer and autumn in some areas of southwest China, and sowing can also be carried out in winter in southern China. There are two types of castor sowing: direct seeding and transplanting.
(4) For live broadcast, try to have 2-3 seeds per nest, with a spacing of 3-5 cm between seeds. After sowing, cover with 2-3 cm thick soil.
(5) For transplanting, you should choose a place with leeward direction, sunny location, convenient water source, and fertile soil for sowing, watering, etc. When the castor seedlings have about 3-4 true leaves, they can be transplanted with soil.
4. Fertilization method
(1) Nitrogen fertilizer is mainly applied in the early growth stage of castor, and potassium fertilizer is mainly applied after flowering.
(2) When planting castor in large areas, you can use ditch fertilization. After sowing, use plant ash mixed with fine soil to cover the nest.
(3) Apply thin human and animal manure when establishing seedlings. If castor is planted in reclaimed wasteland, soybeans, peanuts and other crops can be planted between the castor rows after the seedlings emerge.
2. Castor production
The main production area of ??castor is the northern region of my country. The yield of castor is generally 200-250 kilograms per mu. There are also places where castor is produced in the south, but the production of castor in the south is relatively less than in the north.