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Rice seedling raising is key: good seedlings mean half the rice is already grown, and strong seedlings lead to high yields.
Seedling-stage management for machine transplanting is key. Cultivating robust seedlings suitable for machine transplanting is the key to the success of promoting mechanized rice transplanting. "Good seedlings mean half the rice is grown, and strong seedlings lead to high yields." The quality of the seedlings plays an important role in the number of panicles, number of grains and grain weight in the later growth stages of rice. The basic requirements of mechanized transplanting for seedlings are overall uniformity and individual robustness, requiring that "a tray of seedlings has no tall and short ones, and a handful of seedlings has no thick and thin ones." High temperature and high humidity promote uniform emergence. Germinated rice seeds, after sowing, need to go through a period of high temperature and high humidity for seedling establishment.
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Farmer in Deqing, Zhejiang Invents New Method of Rice Cultivation
Planting rice in paddy fields after raising soft-shelled turtles, keeping it inside insect-proof netting throughout the entire growing period... A farmer in Deqing County, Zhejiang Province, has invented a new method of growing rice that requires no fertilizer or pesticide. Not long ago, a green, pollution-free rice produced in Deqing and called "Mosquito Net Rice" aroused great interest; rice priced at 36 yuan per kilogram sold out in just over an hour, and many rice shops in Hangzhou even placed advance orders for 2008 stock. Why is it called "Mosquito Net Rice"? It turns out that this
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Zhengdao 18 is a nationally approved new japonica rice variety with high yield, disease resistance and good quality
Zhengdao 18 is a new japonica rice variety with high yield, disease resistance and wide adaptability, bred by the Grain Crops Research Institute of the Henan Academy of Agricultural Sciences. In 2005, plant variety right protection was applied for, with announcement number CNA002221E. It passed Henan provincial approval in 2006 and national approval in August 2007. I. Characteristics: The whole growth period is about 152 days, the plant type is compact, the plant height is 95 cm, growth is vigorous, tillering ability is strong, the earing rate is high, the stems are thick, the leaf color is green, the flag leaf is short and held upright, and the leaf sheath is green; the panicle length is 16 cm, the grains are densely set, the grain shape is short and round, and threshability
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What are the reasons why rice seedlings are slow to tiller?
1. Rice bakanae disease: Disease pattern and transmission routes: The pathogen of rice bakanae disease overwinters on grains and rice straw. The following year, when diseased seeds or straw are used, the pathogen multiplies as the seeds germinate, invading through the seedling coleoptile or wounds, causing the seedlings to develop the disease and become leggy. Diseased seedlings often wither and die. Diseased seedlings that do not die are pale yellow-green, grow thin and elongated, generally about one-third taller than healthy seedlings; their roots develop poorly, with few tillers or even no tillering. After diseased seedlings are transplanted, they carry the pathogen to the field, causing rice plants to develop the disease. When rice heads and flowers
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Practical methods for raising water temperature when growing rice with well water
The biggest drawback of growing rice with well water is the low water temperature, which affects the good growth and development of rice, leading to reduced yield and poor quality. Therefore, raising the water temperature when growing rice with well water is crucial. The specific technical measures are: 1. Set up a solar warming pond to raise the water temperature. Adding a solar warming pond is an effective measure to raise the water temperature when growing rice with well water. The area of the solar warming pond should be based on actual conditions and adapted to local circumstances. Generally, the area of the solar warming pond should be 1500-2000 sq m, preferably reaching about 1/20 of the irrigation area of the pump. According to experimental research, 2
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How good is the Super Large Grain King rice variety?
Zhezao 15 is a super-high-yield early indica rice new line developed by mutagenesis treatment using the super-high-yield genetic advantage of "Zhe 18500". After multi-point trial planting as early rice by the Zhejiang Academy of Agricultural Sciences, the yield generally reaches more than 600 kg per 667 sq m (1 mu). The characteristics and advantages of Zhezao 15 are introduced as follows: 1. Extremely strong tillering ability, low seed requirement. The effective tillers per plant can reach 12-15, and 1 kg of seed per 667 sq m of field is sufficient. 2. Cold tolerance at the seedling stage, disease resistance at the later stage. Strong cold tolerance at the seedling stage, so sowing can be appropriately advanced
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Yangdao 6: Breeding and Utilization of a New Medium Indica Rice Variety with High Quality, High Yield and Disease Resistance
Yangdao 6 is a new medium indica variety bred by the Institute of Agricultural Sciences of the Lixiahe Region of Jiangsu, using Yangdao 4 as the female parent, crossed with "Yan 3021", with the F1 seeds subjected to 60CO-gamma ray irradiation mutagenesis, and then developed through continuous directional selection. This variety combines high quality, high yield, disease resistance and wide adaptability, and is an ideal seed source for developing high-quality rice; it has already been demonstrated and promoted on a large scale in Jiangsu, Anhui, Hubei, Shanghai and other provinces and municipalities. Yangdao 6 is also a high-quality restorer line for two-line hybrid rice and three-line Honglian-type hybrid rice, and the formulated "Liangyou Peijiu" and "Yueyou 9
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How does the rice variety Xindao 97203 perform?
This variety was developed in 1997 by crossing Yujing 6 with Xindao 89402. Characteristics: moderate growth period, maturing more than 10 days earlier than Yujing 6; when grown as a wheat-stubble rice in the Yellow River rice region, the full growth period is about 140 days. Good plant type, leaves held upright, panicles erect, plant height about 100 cm. Strong tillering ability, high panicle-setting rate, 230,000-240,000 panicles per mu, 100-110 grains per panicle, 1000-grain weight 25 g-26 g. High yield; in the early-maturing group variety comparison, average yield per mu
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Introduction to Specialty Rice Varieties: Getting to Know Common Types of Specialty Rice
In recent years, the Department of Agronomy at South China Agricultural University has bred several specialty rice varieties, mainly including fragrant rice, fragrant black rice, red zhan rice and others. Their varietal characteristics and key cultivation points are briefly introduced as follows: 1. Wanxianxiangzhan No. 1: Wanxianxiangzhan is a variety bred by crossing Wanlixiang with Jingxian 89, and is an early-season, medium-maturity, high-quality fragrant rice. When planted in the Guangzhou area in the early season, the whole growth period is about 125 days, plant height is 90 cm, plant type is moderately compact and spreading, tillering ability is medium, each panicle has 150-200 grains, it has a certain fragrance, good eating quality, and good late-stage ripening color.
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Introduction to the Xieyou 5968 Rice Variety (National Approved Rice 2004020)
Variety source: Xieqingzao A x t5968. Breeding units: Taizhou Academy of Agricultural Sciences of Zhejiang Province, Zhejiang Hybrid Rice Seed Industry Co., Ltd. Approval status: upon review, this variety meets the national rice variety approval standards and has passed approval, with the number National Approved Rice 2004020. Characteristics: this variety is an indica three-line hybrid rice. When grown as single-season mid-season rice in the middle and lower reaches of the Yangtze River, the average whole growth period is 138.1 days, 4.8 days later maturing than the control Shanyou 63. Plant height 117
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