Rape Seedling Transplanting and Broadcasting

There are two ways to cultivate rapeseed direct seeding and seedling transplanting. The advantages of seedling transplanting can be summarized as follows: 1. Can solve the seasonal contradictions and promote grain and oil production in the Yangtze River basin in the main rapeseed production provinces, implement "rice-rice-oil" three crops a year, rape require September-October seeding, and late rice It will only be mature in late October and mid-November. The season will be very contradictory. For example, early mature varieties of cabbage type, the growth period is generally about 200-220 days. Under rice-rice-oil three-cropping cultivation, rice will generally take about 160-180 days in the early and late seasons, and 380-400 days for the three-cropping crops. In addition to the time for site preparation, the seasonal contradictions will become an important issue for the high-yield rapeseed in paddy fields. problem. The suitable temperature for rape emergence should be 18-22°C. If rapeseeds are harvested after the harvest of double-season rice, the average daily temperature will decrease gradually and the rape grows slowly. The thin and thin plants directly affect the yield. If seedling transplanting methods are adopted, rapeseed can be timely planted. After the late rice is harvested, it will be transplanted with age-appropriate seedlings. It will effectively overcome seasonal contradictions and ensure double production of rice oil. It has been very successful in many areas. In addition, after the early and mid-season rice in the first season, autumn crops (potatoes, mud beans, quinoa, etc.) or short-term green manures are planted again, or corn late rice and early-on-smoke late rice are planted, and three crops a year are cooked, and in dryland cotton. In the district, two crops of cotton oil are used. Due to the long growing season of cotton, it is necessary to transplant oilseed rape so that grain, oil and cotton oil can all obtain high yields. 2. Can cultivate strong seedlings, improve rapeseed rape Raise seedlings transplanting can use seedbeds, so that timely early. During the seedbed period and a period of time after transplanting, a favorable growth season can be fully utilized to achieve sufficient vegetative growth and make up for the lack of growth due to late planting. Because the seedbed area is small, it is convenient for intensive cultivation and soil preparation, and fine and timely management measures such as seedlings, fertilization, insect remediation, and irrigation and drainage are beneficial to the cultivation of strong seedlings. When taking seedlings before transplanting, strong seedlings can also be selected to remove sick and weak seedlings to obtain orderly and consistent good seedlings. When transplanting, uniform plant spacing can be adopted to ensure a certain density, which is beneficial to increase production. In addition, nursery and transplanting can ease the intense farming season and allow sufficient time for the drainage and soil preparation of rice fields to guarantee the quality of transplanting. Therefore, transplanting rapeseed that sows seedlings at the right time is generally more significant than the canola seeded directly after the late rice harvesting or the rapeseed that was broadcast live during the same period of transplanting, so the area of ​​transplanting rapeseed is expanding day by day. China Agricultural Network Editor