Rape autumn cultivation is a new high-yielding technology promoted in the Yangtze River basin in recent years. By means of cultivation techniques, rape leaves grow early in the autumn and grow vegetative bodies, so as to reach the goal of early spring early-onset and stable production and high yield. In the province of Yangli in the months of September, October and November in the province, the cultivation, transplanting and management of rapeseed during this period of time are called autumnal cultivation. According to scientific experiments and production practices in recent years, rapeseed autumn is indeed an effective way of “two highs and one excellentâ€, because autumn rapeseed has wintery (traditional cultivated) rapeseed with 3-4 leaves more winter, and nutrients in vivo. The content is also more, early after the Spring Festival, long hair is also faster and faster, per acre can receive 40-50 kilograms of rapeseed, an increase of 28-35%, the yield is generally up to 200 kilograms, a net increase of 200 yuan.
The specific indicators of the rapeseed before wintering are: 9-10 pieces of green leaves per leaf and 1.5 leaf area indexes at the end of autumn (late November); 12-13 pieces of green leaves per leaf and 2.5 leaf area indexes at the end of winter (the end of December). Do not bolting, the largest leaves 40-50 cm long, the largest blade width 15-17 cm, the total fresh weight per acre plant 2000 kg or more. According to the farmers' words, it was “early years when the leaves were tipped, the topsoil could not see the sky, the green leaves opened eight pieces, the winter solstice was twelve, and the stems were not bolted during the year, and yellow leaves were not presentâ€.
What are the technical points for rape cultivation? According to the author's experience and understanding, I mainly focus on the following:
First, the use of improved varieties: Practice has proved that suitable for our province high-yield rapeseed varieties have oyster sauce 14,17,18; China Miscellaneous 3,4 and so on, the general yield can reach 200 kilograms.
Second, timely sowing: According to the characteristics of the above species, the requirements of autumn cultivation, should be sown on September 5-15 as well, the hills in the mountains can be slightly ahead of the Plain Lake District later (all in the above sowing appropriate period), Miaotian The ratio with Daejeon is 1:6-8.
Third, strong seedlings were planted early: they were required to be transplanted in mid-October, and late seedlings (double nights, cotton, sugarcane, and autumn hybrids) could also be transplanted at the end of October. The standard of strong seedlings is 6-7 leaves, and the seedling height is 20-23 cm. When planting lines should be straight, seedlings should be positive, the root should be stable, do not plant overnight seedlings and mixed seedlings, 6000-8000 per mu density, transplanting methods can be flat planting, ditch planting, ridge planting, people can also be carried out in small areas A person, a seedling, and a fertilizer method strive for high yields.
Fourth, timely and early management: The key is to do a good job of water and fertilizer management, timely fertilizer application after planting, a wax fertilizer before winter, a mid-February application of moss fertilizer in the middle of February, and do a good job of prevention and treatment, other management with General rapeseed.
The specific indicators of the rapeseed before wintering are: 9-10 pieces of green leaves per leaf and 1.5 leaf area indexes at the end of autumn (late November); 12-13 pieces of green leaves per leaf and 2.5 leaf area indexes at the end of winter (the end of December). Do not bolting, the largest leaves 40-50 cm long, the largest blade width 15-17 cm, the total fresh weight per acre plant 2000 kg or more. According to the farmers' words, it was “early years when the leaves were tipped, the topsoil could not see the sky, the green leaves opened eight pieces, the winter solstice was twelve, and the stems were not bolted during the year, and yellow leaves were not presentâ€.
What are the technical points for rape cultivation? According to the author's experience and understanding, I mainly focus on the following:
First, the use of improved varieties: Practice has proved that suitable for our province high-yield rapeseed varieties have oyster sauce 14,17,18; China Miscellaneous 3,4 and so on, the general yield can reach 200 kilograms.
Second, timely sowing: According to the characteristics of the above species, the requirements of autumn cultivation, should be sown on September 5-15 as well, the hills in the mountains can be slightly ahead of the Plain Lake District later (all in the above sowing appropriate period), Miaotian The ratio with Daejeon is 1:6-8.
Third, strong seedlings were planted early: they were required to be transplanted in mid-October, and late seedlings (double nights, cotton, sugarcane, and autumn hybrids) could also be transplanted at the end of October. The standard of strong seedlings is 6-7 leaves, and the seedling height is 20-23 cm. When planting lines should be straight, seedlings should be positive, the root should be stable, do not plant overnight seedlings and mixed seedlings, 6000-8000 per mu density, transplanting methods can be flat planting, ditch planting, ridge planting, people can also be carried out in small areas A person, a seedling, and a fertilizer method strive for high yields.
Fourth, timely and early management: The key is to do a good job of water and fertilizer management, timely fertilizer application after planting, a wax fertilizer before winter, a mid-February application of moss fertilizer in the middle of February, and do a good job of prevention and treatment, other management with General rapeseed.