Recently, the reporter learned from the planting station in Jiangsu Province that at present, the drought-flooded wheat planting in the Huaibei region of our province has ended, and most of the plots have emerged in good condition. The current positive values ​​are for rice harvesting and the peak period for rice and barley wheat cropping, and the rice crop is generally on the whole. The wheat planting progress is better than last year, but the proportion of late seeding is still expected to be large.
According to the province's autumn harvest scheduling analysis, the province's wheat planting schedule was 52.7% on November 4th, including 95.2% for the drought-flooded wheat crop. The planting was nearing completion, and the rice-buckwheat crop was 37.5%. It is expected that the proportion of wheat sown in the province will be 54.3%, an increase of nearly 5 percentage points over the previous year. The rate of late seeding within 10 days will be 29.6%, and that of the late sowing of more than 10 days will be 16.1%. The overall planting schedule is faster than the previous year.
According to the analysis, there are currently three prominent problems in the wheat seedling situation in our province. First, there was rainfall in most parts of the province in early November, which was detrimental to the progress of planting wheat and the quality of sowing. Second, due to the large amount of rice straw returned to the field, the popularization of straw returning implements and socialized services are not in place in some areas, and the quality of returned straw is not high, which is detrimental to the sowing of wheat seedlings. Third, there are many basic flooded buckwheat seedlings, and there are long-term trends. Since October, the province has been mainly fine weather, and the drought-flood wheat has been sown in a proper period, and the emergence has been good. Some wheat in the field has already had five leaves and one heart.
The provincial planting station pointed out that the best sowing date for wheat in the Central and Northern Jiangsu Provinces has already passed. The best seeding period for wheat in the southern part of Jiangsu Province will be urgent. Production should pay close attention to the weather conditions, such as suitable soil moisture, good ploughing, timely stalk (secondary) smash to return to the field, improve soil preparation and sowing quality. In case of rainy weather, soil moisture, unsuitable for rotary ploughing, or deep turning of straw to field sowing, we must first take measures to eliminate water accumulation in the field, reduce soil moisture, and “not to be late†to avoid bad farming. . After soil drainage, the soil moisture is still difficult to adapt to the sowing requirements. The anti-reverse sowing measures may be adopted early in the evening. The main sowing operation methods include: (1) Live broadcasting of leeches, and timely ditching and covering of earth when appropriate; (2) Interplanting 1 day before rice collection, fertilization, rice harvesting, sorghum removal, straw mulching, high density ditching, or rice harvesting, sorghum planting, fertilizer spreading, straw mechanical crushing, and high density ditching and cover soil; (3) Rice harvesting sorghum → straw mechanical smashing → mechanical shallow broadcasting (ensure planting close contact). At the same time, according to the situation of late sowing, increase the seeding amount as appropriate, to supplement late.
After the sowing of wheat, it focused on four field management measures. The first is to apply Miaofei or tiller as early as possible without applying basal fertilizer or insufficient amount of wheat, so as to ensure that the base seedling fertilizer is applied to pure nitrogen of 9 to 10 kg per mu, accounting for 50% to 60% of the total lifetime. The second is supporting the ditch to prevent waterlogging. When the lyrical situation is appropriate, the machine should be ditched in time. Every 3 to 4 meters should be excavated to a vertical ditch, 2 to 5 meters away from the field hoe to dig a horizontal ditch, and the longer field to open a ditch to every 50 meters to ensure the inside and outside of the s The ditch "connected, smooth drainage. The third is repression coverage to prevent freezing damage. For wheat fields with large straw returning amount, proper pre-winter repression should be done to ensure the roots are closely connected, and the ability to protect the crops against freezing should be improved; for the live seedlings in paddy fields and interplanting with wheat in paddy fields, they can be obtained by adding fertilizer or trenches. The way of soil enhances coverage. The fourth is to remove it in time to prevent weeding. For the unblocked depilation plots at the time of sowing, the “cold-head warmer†and the sunny day with an average daily temperature of 5°C were sprayed and removed in time.
The provincial planting station reminded that the winter wheat fields should be classified by seedlings. For Wangchang wheat fields where no medicine is used for seed dressing, control agents such as "dwarf strong" and "dwarf Miao Zhuang" should be snatched and sprayed, and moderate suppression may be performed when the moisture content is appropriate. For the first and second types of seedlings, 5-7 kg of urea per acre is used as a strong and tidy balance fertilizer in the 3 to 5 leaf stage to prevent yellowing in the spring. The overall sowing rate of late-seeding wheat is large, the basic seedlings are sufficient, and in the case of base seedlings with sufficient fat, it is not appropriate to apply fertilizer blindly to prevent excessive occurrence of invalid tillering, and the focus is to apply the jointing spikes of panicles and spikes after returning green.
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