How much does rapeseed cost per jin? With planting methods
Rapeseed is the most important oil crop in China, also known as yuntai, hancai, hucai, etc. It is an annual or overwintering herbaceous plant of the genus Brassica in the family Brassicaceae. Its seeds contain 33-50% oil. At present, the main cultivated (variety) types are Brassica rapa (field mustard type), Brassica juncea (brown mustard type), and Brassica napus (rapeseed type), etc. Now let us take a look at rapeseed seed prices and planting methods!
How much do rapeseed seeds cost?
| Variety name | Packaging specification | Reference price | Variety characteristics |
| Ganza No. 1 | 100 g/bag | 12-15 yuan/bag | Medium-maturing winter type, cold and drought tolerant, resistant to viral disease, tolerant to sclerotinia |
| American High-Yield Oil King | 100 g/bag | 5-8 yuan/bag | Semi-winter medium-late maturing, disease resistant, lodging resistant, high yield |
| Xikeyou No. 1 | 100 g/bag | 6-7 yuan/bag | Winter type medium-early maturing, cold and drought tolerant, resistant to viral disease |
| Early-maturing No. 98 | 100 g/bag | 5-6 yuan/piece | Strong winter type, cold and drought tolerant, disease resistant, lodging resistant |
Note: Rapeseed is one of the most important oil crops, and its seed price is generally around 5-6 yuan per jin, but it varies depending on the variety, quality, place of origin, etc. The above prices are for reference only; please refer to the actual price.
Sowing methods for rapeseed
1. Choose good seed: Rapeseed cultivated in China can be divided into three major types: field mustard type, brown mustard type, and rapeseed type. Choose varieties with good quality, disease resistance, high yield, and tolerance to bolting, such as Xiaoqingcui, Huaguan, Jinglü No. 2, etc.
2. Apply sufficient base fertilizer: Usually apply 3000-5000 kg of high-quality fully decomposed farmyard manure, 20-25 kg of diammonium phosphate, 10-15 kg of potassium sulfate, or 40-50 kg of 45% ternary compound fertilizer per mu.
3. Seed treatment: Before sowing, place the seeds in a place with sufficient light and air-dry them for 3-4 hours, then soak the seeds in 50°C warm water for 20-30 minutes, then soak them in 20°C-30°C water for 2-3 hours. After air-drying, they can be sown directly.
4. Fine sowing: Generally sow in late March, using about 350 g of seed per mu. Before sowing, water according to soil moisture to build up moisture. Sow after the water has seeped in. When sowing, open 5 furrows in a 1 m wide bed, with a furrow depth of 1.5-2 cm, and sow the seeds evenly in the furrows.
Planting methods for rapeseed
1. Thinning and final singling: When two needle-like leaves unfold, do the first thinning with a seedling spacing of 3-4 cm. At the 4-leaf-1-heart stage, do the second thinning with a seedling spacing of 8-10 cm, leaving about 40,000 plants per mu. During the seedling stage, water demand is relatively low. Under normal conditions, do not water unless there is drought. After final singling, water 3-4 times.
2. Clear ditches and drain waterlogging: In areas with more rain in spring, pay attention to drainage. Waterlogging not only seriously affects the normal growth and development of rapeseed, but also easily leads to the occurrence and spread of diseases such as sclerotinia. Therefore, in spring, special attention should be paid to clearing ditches and draining waterlogging in rapeseed fields.
3. Spray boron fertilizer: Boron deficiency in rapeseed can lead to flowers without seed set and reflowering. For fields without basal boron fertilizer, spray on the leaves during the bud-bolting stage and early flowering stage. For fields with severe soil boron deficiency and no basal boron fertilizer, spray boron fertilizer once during the rapeseed seedling stage.
4. Apply bolting fertilizer: To prevent lodging later and delayed maturity due to excessive vegetative growth, fertilizing after the New Year is generally not advocated. However, for fields with insufficient winter fertilizer, poor growth, and a tendency toward premature senescence, an appropriate amount of bolting fertilizer should be supplemented. For fields with a large amount of winter fertilizer and vigorous growth, no more bolting fertilizer should be applied.
5. Prevent lodging: If rapeseed is poorly managed in the early stage and grows too vigorously, or if there is too much fertilizer and water in the later stage, lodging can occur. When lodging occurs, straighten the plants as much as possible, cut some branches to prop them upright, and for fields with high humidity, focus on clearing ditches and draining waterlogging.
6. Pest and disease control: The main diseases easily occurring in open-field spring rapeseed include sclerotinia, downy mildew, black rot, etc. The main pests include aphids, leafminers, etc. To control diseases, promptly remove old leaves and diseased leaves. When the rate of diseased leaves reaches above 10%, pesticides can be used for control.