The most important thing is to sow a small amount of wheat.

The implementation of mechanical fine sowing in a small amount of wheat can save 5 kg of seeds per mu, save 10 yuan in cost and increase production by 50 kg compared with conventional machine. However, in order to really achieve this effect, we must pay attention to the word "fine" when sowing.

(1) fine ground preparation. It is required that the soil in the wheat field is "deep, flat, fine and clean", the depth of the mature soil is more than 8 cm, the surface is flat and without concave ponds, the soil is so fine that there is no "egg clover", and there are no sundries such as stubble and waste film on the surface. Farm manure should be applied at one time before sowing.

(2) selected seeds. The excellent varieties with strong tillering ability, high panicle rate, large number of grains per spike, drought and humidity resistance, lodging resistance and suitable for growing in fertile or medium fertility plots were selected. After seed cleaning and impurity removal, seed treatments such as seed drying, seed dressing or seed coating were carried out.

(3) actuarial sowing date and sowing quantity. A small amount of fine sowing and sowing date should be suitable, Huaibei region in mid-October, Lixiahe area in late October, too late is not conducive to the formation of robust low tillers, it is difficult to form population advantage, can not achieve the effect of yield increase. The sowing rate is generally 3-5 kg per mu, the selection value of high 1000-grain weight, late sowing time and low soil fertility, and the basic seedlings reach 70 000 ~ 100000 seedlings per mu. The sowing depth is usually 3-5 cm, slightly deeper in drought.

(4) fly the plane carefully. The operator must operate the machine carefully on the basis of mastering the performance and structure of the machine.

The main results are as follows: (1) to ensure that the parts of the machines and tools are fastened and reliable, the rotation is flexible, the lubrication is good, and the parts are not defective.

(2) according to the requirements of the operating instructions, the sowing rate per mu and the depth of rotary ploughing, trenching, soil covering and suppression wheel should be adjusted accurately, and the level of frame suspension and the tightness of the transmission chain should be adjusted appropriately.

(3) it should be noted that the seed addition amount of the seed box should at least be increased to cover the entrance of the seed metering box to ensure the smooth seeding flow.

(4) before sowing in a large area, the trial sowing is about 20 meters, and the test confirms that it meets the agronomic requirements and then puts into normal sowing.

(5) in the sowing operation, proceed at a steady speed in a straight line, not fast or slow, or stop frequently. The rise and fall of the planter should be operated in advance, otherwise the trench opener is easy to be blocked. When turning backwards or corners, the seeder shall be raised. If you find the trench opener, the suppression wheel entangled with grass or clay, stop in time to clean up, so as not to affect the sowing quality.