Wheat production "seven minutes, three minutes". Raising the quality of autumn sowing is conducive to strengthening the seedlings and seedlings, safe wintering, and laying a foundation for high yields and stable production.
To strive for proper sowing and scientific determination of the best seeding period for the semi-winter cultivars in the Huaibei region in mid-October, the semi-winter spring cultivars along the Huaihe River in late October, and the spring cultivars in the Central Jiangsu Province in late October. At the beginning of November, the spring varieties in southern Jiangsu were from the end of October to the beginning of November. Appropriate early sowing using precision sowing, the basic seedlings per acre control within 120,000; appropriate sowing semi-precision seeding, basic seedling control at 160,000 or so. To miss the appropriate sowing date, the amount of sowing should be appropriately increased. The seedlings should be planted every night for 1 day every night with an increase of 0.5 million to 10,000 basic seedlings, and no more than 80% of the expected ear number. Three million basic seedlings per acre, Huainan area does not exceed 250,000 basic seedlings per acre). When the seed germination rate is normal and the sowing time is appropriate, the sowing amount can be determined according to the principle of "kind of tens of thousands of seedlings." The seedling emergence rate in the field under low sowing temperature is only about 70%, and the appropriate seeding rate should be determined according to factors such as seed germination rate, dry weight, and field emergence rate.
Avoid bad farming and improve the uniformity of sowing
In our province, wheat is dominated by rice bran, rice plentiful in most regions is late, and the paddy soil has poor plowing ability and a short cropping period. This requires that according to conditions such as cornices, soil, lyrics, and climate, local conditions should be adopted to appropriate sowing methods, to grasp the progress of sowing, to avoid cultivating rotten species, to ensure that all seedlings sowing, to achieve seedlings, seedlings, strong seedlings. Earlier harvest of rice, timely unloading (recovering rice to the appropriate time for planting more than 5-7 days), soil sand to loam, suitable moisture conditions, the soil is suitable for the state of cultivation, can take free (less) cultivator drill; harvest rice Immediately after sowing, the soil moisture is too high, and the seedlings can easily cause the lack of seedlings and ridges. It is advisable to use man-made plates with shallow rotation and artificial or mechanical even spreading; The relative water content of the soil is in a saturated state, and the soil is heavy and poor in ploughability. Tillage machinery operations often result in cultivating and cultivating crops. They can only be planted directly on rice stalks without tillage, and Taihu Lake is also called “press platen wheatâ€. Teng 茬 lies in the proper time for rice planting in wheat cultivars. It can be planted in paddy fields and planted 7-10 days before cutting rice to ensure proper early sowing of wheat. Both old rice and early cultivars are correct.
Scientific Fertilizer Operation, Applied Base Fertilizers High-efficiency fertilization of wheat should follow the principle of “giving full use of basal fertilizer and re-applying joint-stocking and panicle-fertilizerâ€. The level of fertilization differs according to the difference in soil fertility. For a per mu over 500 kg, the amount of pure nitrogen per acre should reach 15-20 kg. The ratio of pure nitrogen, phosphorus pentoxide, and potassium oxide is 1:0.6:0. .6 or so. According to the technical requirements of quality-adjusted cutting and weaving, the nitrogen fertilizer management method for weak gluten wheat is 7:1:2 for base fertilizer, balance fertilizer and dial fertilizer, and the nitrogen recovery ratio of strong gluten wheat is controlled at about 5:5. The ratio of top dressing is about 6:4. Phosphorus and potassium fertilizers are based on the combination of basic recovery, the general base recovery ratio is 5:5.
“Complementary ditch system, a kind of ditch with high standards to open a good wheat field is an important guarantee for the high yield of wheat in Huainan region. It is necessary to vigorously promote the machine to open the ditch, ensure that the inner third ditch and the outer three ditch are matched, so that one side of the wheat field, two Water, Sangou matching, four vacated, the rain only dry, can irrigation and drainage, drought and flood protection.Huaibei wheat area to gradually promote the south ditch northward to overcome the idea of ​​re-irrigation and light row, rice, wheat and wheat to strive to reach the ditch standards of Huainan wheat field ,Dragon buckwheat vigorously promotes deep ditch sorghum, which can both water-saving irrigation and drainage, so as to achieve a kind of pipe, timely fill gaps, fill seeds, make cracks, fill the seedlings. Fertilizer, etc., to strengthen field management.
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