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特优559株高110厘米左右,分蘖分强,结实率高,穗长粒多,一般亩产500公斤,早造生育期125～130天,晚造115～120天,是目前广西大力推广的杂交稻新组合之一。但该组合易感染稻瘟病。一般病穗率在10%左右,严重的达20%以上。因此,推广种植该组合的地区,应切实做好测报和防治工作。一、种子消毒。把种子用清水清洗1—2次,预浸4小时后洗净换清水再浸4小时,再换清水浸4小时,然后捞起沥干浸在强氯精300倍或万消灵800倍液中消毒12小时,洗净药液后催芽,可兼治白叶枯病、恶苗病和胡麻叶斑病。二、合理施肥、管水。基肥足,一般是亩施农家肥500公斤,尿素10公斤(或碳铵25～30公斤),过磷酸钙25公斤,氯化钾8～10公斤。追肥早,抛(插)秧后5～7天施分蘖肥,亩施尿素4～6公斤,氯化钾6～8公斤。巧补穗肥,在幼穗分化中后期视禾苗长势,亩施穗肥尿素3～6公斤,钾肥3～5公斤,抽穗扬花至灌
Teyou559 plant height of about 110 cm, strong tillering points, high seed setting rate, ear length and more grains, generally 500 kg per mu, early growth period of 125 to 130 days, late made 115 to 120 days, Guangxi is currently promoting One of the new hybrid rice combinations. However, the combination is susceptible to blast. The general disease panicle rate of about 10%, severe up to 20% or more. Therefore, to popularize and cultivate this combination of areas, we should do a good job in reporting and prevention and control. First, seed disinfection. The seeds washed with water 1-2 times, 4 hours after pre-immersion wash water for another 4 hours and then immersed in water for 4 hours, then picked up leaching dipped in strong Chlorine 300 times or Wan Wanling 800 times Disinfection in 12 hours, after cleaning the liquid sprout, and can cure bacterial blight, foe disease and flax leaf spot. Second, rational fertilization, water management. Basal fertilizer foot, is generally 500 kg farm manure Mushi, urea 10 kg (or ammonium bicarbonate 25 to 30 kg), superphosphate 25 kg, potassium chloride 8 to 10 kg. Topdressing early, throwing (inserted) Seedlings 5 to 7 days after the application of tillering, Mushi urea 4 to 6 kg, potassium chloride 6 to 8 kg. Coincidentally, it supplements spikelet fertilization and assumes seedling growth in late panicle differentiation, with 3 to 6 kg of mu urea and 3 to 5 kg of potassium fertilizer,