Rice-rice-oil cultivation technique

No-tillage Direct seeding Technology of rape in Paddy Field

The technology of no-tillage direct seeding of rape in paddy field is a cultivation method of sowing rape directly without ploughing after rice harvest. This technology can not only make full use of temperature and light resources, improve land utilization rate, but also reduce labor intensity, remarkable economic benefits and so on. According to the effect of demonstration planting, this technology should be popularized in a large area in our county.

First, the four advantages of rape no-tillage direct seeding:

1. Save labor and cost. It takes only 2-3 working days for ditching, fertilization, sowing and pesticide application in an mu of rice field, and the cost of seeds, fertilizers and pesticides does not exceed 100 yuan.

2. High yield and high efficiency. Direct seeding rape won by multi-seedling main ear, relying on main inflorescence and primary branch to obtain high yield. Last winter, more than 280 mu of direct seeding rape were planted in Quantangzi Agricultural Technology Station of our county. According to the yield measurement and cost-benefit accounting of experts from the Municipal Bureau of Agriculture, the yield per mu was 150-200 kg and the net income reached 550-700 yuan / mu. According to the field investigation at the grain and oil station on May 27, the Ye Shaohua family of the Luojia formation in Shangquan Village has a medium level of 2.4 mu, producing rapeseed 62.5 kg and mu ping 260 kg.

3. Easy to operate and easy to master.

4. it is beneficial to the improvement of soil and the high yield of rice and oil. The implementation of flood-upland rotation can improve soil aggregate structure, rape root, stem, leaf and vegetable can be fertilized, which can increase soil organic matter and lay a good foundation for high yield of early rice.

2. Key points of high-yield cultivation techniques of no-tillage rape.

(1) pre-broadcast preparation

1. Choose paddy fields with good drainage conditions and fertile soil.

2. Open the ditch and box, open the surrounding ditch, waist ditch and box ditch after rice harvest, make the ditch communicate with each other, clear the trench and drain, and use carbendazim or Jinggangmycin to control Sclerotinia sclerotiorum, downy mildew and so on.

(2) timely harvest. Rape can be harvested when 2/3 pods turn yellow and seeds at the base of the main inflorescence turn black.

3. Key points of cultivation of early rice, late rice and rape:

1. Variety selection

Early rice first used medium and late maturing varieties, such as Xiangzaoxian 29, Jinyou 974, Jinyou 402, Weiyou 402 and so on. Jinyou 207, Fengyuan 299 and T you 207 were selected for late rice.

2. The amount of seed used in the field is 3-4 kg / mu for conventional rice and 1.5-2 kg / mu for hybrid rice.

3. In the way of raising seedlings, the techniques of dry raising and throwing seedlings without disk or throwing seedlings with soft disk are adopted.

4. Sowing time: sowing before and after Qingming Festival.

5. Throwing time: rape is generally transplanted before May 10th after harvest, and basic seedlings are guaranteed: 8-100000 basic seedlings per mu of conventional rice and 60-80 000 basic seedlings per mu of hybrid rice.

6. Early topdressing: 5-7 days after transplanting, 7-8kg/ mu of urea was applied to promote the early growth and rapid development of grain seedlings and quickly set up a high-yield seedling frame.