Rapeseed Yield per Mu, Cultivation, Storage and 2018 Price Forecast

Rapeseed is also called rapeseed seed; it is the seed of the cruciferous crop rapeseed. Rapeseed has relatively long siliques, sets many pods, and the seeds are plump.So what is the approximate yield of rapeseed per mu? How do you plant it? How do you store it so it does not spoil? What was the price of rapeseed in 2018?According to Mr. Liu, a rapeseed grower in Hunan, if managed according to the practices used for high-yield fields, every 667 sq m of rapeseed can produce 400-450 jin. It is essential to apply sufficient basal fertilizer, обязательно apply boron fertilizer, take measures to prevent freezing at the seedling stage, manage pests and diseases later on, and manage the field.

How is rapeseed planted?

1. Apply heavy winter fertilizer: winter fertilizer has the effect of keeping warm, preventing freezing, and promoting spring growth. Generally, in mid-to-late December, winter fertilizer is applied to the rapeseed field as a top dressing, combined with hilling. Winter fertilizer should be based mainly on slow-release manure and cake fertilizer, together with a certain amount of plant ash and superphosphate.

2. Prevent cold and freezing. Covering the rapeseed bed surface with rice straw, scattering plant ash, or applying decomposed, finely crushed organic fertilizer can not only raise soil temperature and enhance the rapeseed's ability to resist cold and freezing, ensuring the rapeseed safely overwinters, but also improve soil structure. For rapeseed fields with a high groundwater level, attention should be paid to clearing ditches and draining waterlogging to avoid waterlogging turning into ice and worsening freeze damage.

3. Chemical control to promote seedling establishment. If early transplanted rapeseed grows too vigorously, spraying Zhuangjingling in mid-to-late December can make the plant stems thick and strong, the leaves thick, the leaf color fresh and tender, and the plant luxuriant, with a rich natural quality. At the same time, it can improve disaster resistance, reduce the amount of pesticides and chemical fertilizers, and lower residue toxicity.

4. Prevent disease and control insects. The main pests and diseases of rapeseed are sclerotinia, downy mildew, white rust, and aphids. At present, aphids cause the most serious damage, and aphids also transmit viral diseases, so early and thorough control should be achieved to control insects and prevent disease. Imidacloprid 3000--4000 times solution spray + Xin Gao Zhi Mo can be used to control aphids. For diseases occurring in rapeseed after the beginning of spring, the “three ditches” can be deepened to lower the groundwater level, and while removing lower old leaves, when the leaf disease incidence reaches 10% at the initial flowering stage and the stem disease incidence reaches 1%, spray promptly for control, using 50% carbendazim plus Xin Gao Zhi Mo spray.

How is rapeseed stored so it does not spoil?

Rapeseed has a relatively high oil content, about 35%-40%, and is generally considered unsuitable for storage. It also has strong hygroscopicity, and the maturity period has high temperatures and much rain. If not stored well after harvest, it easily absorbs moisture and sprouts, losing its edible value, and newly harvested rapeseed has poor stability. Therefore, management should be strengthened and storage should be scientific. Rapeseed storage mainly requires attention to the following aspects:

1. Dry and remove impurities, control moisture. After rapeseed is harvested, it should be dried promptly to reduce moisture. The moisture content of rapeseed stored in warehouses should be <9%, and for long-term storage the moisture content should be <8%. After drying, clean and remove impurities, reduce dust and debris, increase air permeability, and only put it into the warehouse after cooling.

2. Reasonable stacking and storage. The warehouse storing rapeseed must have conditions such as ventilation, airtightness, moisture insulation, and heat prevention. After drying and impurity removal, rapeseed should be reasonably stacked according to processing requirements and the condition of the rapeseed itself. The stack height should not exceed 1.5 m, and ventilation should be carried out promptly to prevent the rapeseed from heating up.

3. Airtight, oxygen-deficient chemical storage. For rapeseed that needs long-term storage, while storing it airtight at low temperature, oxygen-deficient treatment and chemical treatment can control sprouting, insect infestation, heating, and mildew. However, the use of highly toxic, high-residue pesticides for fumigation and disinfection is prohibited.

Appendix: 2018 rapeseed price forecast

1. At present, the rapeseed purchase price in Chongqing is 5.54 yuan/kg, the individual price index is 101.84, up 1.30% from a stable-to-slightly-rising month-on-month change, up 1.04% compared with the average price of the previous four weeks, and up 4.24% year-on-year, significantly higher than the national average price by 7.07%;

2. Some oil mills in Changde, Hunan, purchase newly harvested rapeseed (raw goods, 14% moisture and impurities) at 2.35 yuan/jin, and the purchase price in the Yueyang market is 2.35-2.40 yuan/jin;

3. Rapeseed procurement in Hubei is basically complete. Due to reduced supply, rapeseed basically has a price but no market. At present, quotes on the market are mostly concentrated at 2.00-2.15 yuan/jin (10-12% moisture and impurities). Among them: the sporadic rapeseed purchase price in the areas around Jingmen is 2.00 yuan/jin, with 11% moisture and impurities and 38% oil content.