First, the sowing date must be rushed to plant seeds in the summer sowing, the sooner the better, and strive to sow before June 5, at the latest not more than June 15, otherwise the output will be greatly affected, the output is not guaranteed. Summer growth period of 105 days, generally 400 kg per mu.
Second, fertilization applies 40-50 kg of phosphate fertilizer per acre, 15-20 kg of urea, 10-15 kg of potash, and 3-4 organic fertilizers. It is best to add appropriate amount of trace fertilizer, such as 1.5 kg of iron fertilizer and zinc fertilizer. 1 kg.
Third, sowing seedlings: a wide strip of good behavior, line spacing of 24 to 30 cm. Cave sowing: Take a wide line of narrow plants, spacing 24 to 28 cm, 15 to 18 cm in distance. Sowing volume: Generally about 5 kilograms of sowing volume, about 9 to 11 million basic seedlings, sowing seedlings or poison baits and other measures to eliminate the underground pests. Broadcast depth: generally 2 to 3 centimeters, so that "deep but not shallow, shallow without seeds," crackdown after sowing.
4. Before weeding, we should use "dry rice special herbicide No. 1", 200-250 ml per mu, and 60-75 kg of water, and evenly spray the ground to seal the soil. From the 1st to the 2nd leaf stage after emergence, it is advisable to use the dry rice special herbicide No. 1 spray or mixed with the enemy borer for the stem and leaf treatment, preferably at the bud stage. The removal of uncleaned weeds was carried out manually.
Fifth, rational control of Brazil upland rice plant shape is high (about 1.2 meters), so should be sprayed before and after the jointing stage paclobutrazol (or Zhuang Fengan, shrinking Festival Ann) and other regulators, reasonable control, to prevent lodging.
Sixth, fertilizer and water management generally watering the whole growth period 4 to 5 times, the water consumption is only equivalent to 20% to 30% of ordinary rice water consumption, rainfall is enough to avoid pouring. Emergence to 2 leaves 1 heart to 3 leaves 1 heart, can be combined with irrigation mu 10 kg urea, potash 5 kg, promote early delivery and effective delivery; jointing urea 5 kg topdressing, potassium fertilizer 10 kg, spike large grains and more From the booting stage to the heading filling stage, 3 kg of urea and 5 kg of potash are applied at this stage. This stage is the most important stage of reproductive growth. It is also called the critical period of moisture. It should keep the soil moisture as saturated as possible, and it should be dominated by wet management. If water is too early, it can easily cause a dramatic increase in empty grains and reduce the grain weight, affecting the quality of rice.
Seventh, comprehensive prevention and control of pests should pay attention to the prevention and control of underground pests, blight, and pay attention to the prevention and treatment of S. indica, rice blast, and sheath blight in the middle and later stages.
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