Liaoyou 1052 (Rice)
Liaoyou 1052 is a new hybrid fragrant rice combination prepared by Liaoning Rice cropping Research Institute with high outcrossing rate of scented rice male sterile line and high quality restorer line.
Characteristic characteristic
The growth period of Liaoyou 1052 is about 158days, the plant height is 116ml / 118cm, the average panicle length is 19.35cm, the total spikelets per panicle is 180g and the fruiting grains are 140. it belongs to the rice combination with large panicle and the 1000-grain weight is 24.6g. After transplanting, the seedlings grew quickly, the individual growth of the plant was exuberant, the tillering ability was medium, with an average of 15 ears per hole, and the straw formation rate was high. Strong stalk, strong lodging resistance, strong drought resistance, strong saline-alkali tolerance. Rice is soft and has a special fragrance comparable to Japanese high-quality rice Yueguang, and its taste is excellent.
Yield performance
During the trial planting in Luobu Village, Bali Town in 2002, the yield per mu still reached 600 kg in the case of flooding during the flowering and pollination period.
Key points of cultivation
Sowing early at the right time, sparse sowing, cultivating strong seedlings with tillers, keeping proper row spacing, generally 33.3 × 16.7 cm, drawing 4 seedlings per hole, rational fertilization, advocating the principle of front weight and post light.
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Liaoyannuo 10 (Rice)
Selection and breeding unit: North Agricultural Technology Development Corporation. Examination and approval: approved by Liaoning Provincial crop Variety approval Committee and approved by the National crop Variety approval Committee in 1999. Variety approval number: national examination and approval rice 990002. Variety source: Liaojing No. 5 line selection. Characteristics: strong seedling, well-developed root system, compact plant type, tough stem, plant height of about 90 cm, 15 leaves of main stem, erect and short, wide and thick leaves, dark leaf color, high light energy efficiency.
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How to prevent and control the shrinkage of rice seedlings due to zinc deficiency
The shrinking seedlings of phosphorus deficiency generally occurred at the tillering stage after slow seedling, such as slow growth, short plant, slender and erect leaf shape, dark green leaf color, neat top of leaf cluster, significant shortening of leaf occipital distance, redness of some tillering leaf tips and even death of old leaves. The reasons are: first, the soil is lack of available phosphorus; second, the soil temperature and water temperature are low, or the soil contains hydrogen sulfide, ferrous and other reducing harmful substances, which reduce the absorptive capacity of roots; third, excessive application of nitrogen fertilizer, the relative balance of effective nutrients is lost. Control measures according to the effective formation of phosphorus measured by the method of soil testing and fertilization
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