Late wheat requirements are high

In the central and southern regions of our province, most of the wheat planted on cotton and sweet potatoes is sown on October 20th. The accumulated temperature required for the growth and development of wheat is insufficient, and the seedlings are not well developed. Not only the number of panicles but also the number of grains per panicle are reduced. Thousands of grain weights have different degrees of influence. Therefore, in the cultivation technology, we must take appropriate measures. The first is the selection of suitable wheat varieties. Use semi-winter varieties such as Shixin 733, Shanyou 3475, Jimai 20, Heinong 822, Shimai 12 and so on. And to increase the amount of sowing to ensure that enough basic seedlings. The second is to increase the amount of fertilizer. Cotton, yam and wheat due to the greater consumption of cotton, so the base fertilizer in addition to the supply of wheat, but also to meet the needs of the next cotton, so increase the amount of fertilizer. The proportion of the effective components of nitrogen and phosphorus should be increased from 1:0.7 for single-cropping wheat to more than 1:1. Generally increase nitrogen and phosphorus available fertilizer to promote early-onset. Mu application at the end of the fertilizer: 4 or more farmyard fertilizers, 50 kg of ammonium bicarbonate, 60 kg of superphosphate, 12 kg of potassium sulfate, 4 or more farmyard fertilizers, 15 kg of urea, 20 kg of diammonium phosphate, and 12 kg of potassium sulfate. In addition to supplement the bell base wheat fertilizer expert 1 to 2 bags. The third is early in the evening. In order to sow wheat as early as possible, it should be as early as possible to sow early, early preparation and early sowing without affecting or undermining the yield and quality of the former crop. Late-maturing cotton can be ripened by ethephon, and should be extracted when the bottom pod is insufficient. Watering before cottonwood. Appropriate shallow sowing at the time of sowing can reduce the consumption of seed nutrients, and early seedling emergence and early tillering. If it is wet due to rain, it may be 1.5 to 3 centimeters shallow. Fourth, pay attention to seed dressing. For the prevention and treatment of wheat full-bleeding disease, smut, sheath blight mu using 50 to 100 ml + 10 ml of Cola, add 200 ml of water, spray mixed with 13 to 15 kg of wheat, mix and boring after 4 hours Reseeding; control soil pests with 3% per mu and kill 1 bag, mixed with fertilizer and sprinkled into the surface, can also be used 50% phoxim 150 ml, 3 to 4 kg of water, sprayed on 50 kg of wheat, mixed You can sow. The fifth is to strengthen the management of early winter pre-spring. Late sowing of wheat before winter and early spring seedlings and weak seedlings, water consumption and fertilizer consumption is low, basically no shortage of water and nutrients before returning to jointing, generally do not topdressing watering, so as not to reduce the temperature, affecting seedling development. For example, if the quality of the soil is poor, if it is difficult to run, or if it is poor, it may be repressed in winter and early spring. After pressing, it will be shallow, and it will have the effect of warming and warming. Early spring roots, from mid-February to early March, shallow earthworm loose soil ventilation, warming and protecting earthworms, promote early-onset, and promote rooting. (Long Yao County Bureau of Agriculture 055350)


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