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Detailed Introduction to the Functions and Roles of Rice Leaves
The rice leaf is composed of two main parts: the leaf blade and the leaf sheath, in addition to accessory organs such as the auricle and ligule. The junction where the leaf sheath connects to the stem is called the leaf node. The junction where the leaf sheath connects to the leaf blade is called the leaf collar. When the seed germinates, the first thing to grow out is the coleoptile that protects the young shoot as it emerges, also called the sheath leaf. The sheath leaf differs from other leaves in that it is white and shaped like a cylinder. The second leaf has only a leaf sheath and no leaf blade, and is called an incomplete leaf. Leaves beginning from the third node have both a leaf sheath and a leaf blade, and are called complete leaves. Counting the number of leaves of a variety
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Introduction to the high-quality conventional rice variety Yexianzhan No. 8
Yexianzhan No. 8 was bred by the Huizhou Municipal Institute of Agricultural Sciences of Guangdong through the cross Guiyazhan No. 2 / Texianzhan 13 / IR24. In the 2002 and 2003 late seasons it took part in the Guangdong provincial high-quality group regional trial, with an average yield of 405.91 kg and 454.47 kg per mu, an increase of 9.25% and 10.64% respectively over the control variety Jingxian 89, and both increases were highly significant. In the 2003 late season it took part in the provincial production trial with an average yield of 446.7 kg per mu. The rice quality was tested and appraised by the Food Quality Supervision and Inspection Testing Center of the Ministry of Agriculture as
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Planting Performance and Application Prospects of Different Simplified Rice Cultivation Methods
1 Planting performance of several simplified rice cultivation methods 1.1.1 Actual harvested yield. The actual harvested yield was highest for machine-transplanted rice, with an average yield of 9000 kg/hm2; followed by hand-transplanted rice, with an average yield of 8850 kg/hm2; third was seedling-throwing rice, with an average yield of 8700 kg/hm2; fourth was wheat-intercropped rice, with a yield of 8400 kg/hm2; direct-seeded rice had the lowest yield, averaging 8250 kg/hm2. 1.1.2 Number of panicles per unit. Direct
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Introduction and Characteristics of the Kendao No. 9 Rice Variety
Yield performance: In the 1998-1999 regional trials, the average yield was 7415.3 kg per hectare, an average increase of 18.0% over the control variety Heijing No. 5; in the 2000 production trial, the average yield was 6869.0 kg per hectare, an average increase of 14.2% over the control variety Heijing No. 5. Characteristics: japonica rice, with a growth period of about 126 days and requiring an active accumulated temperature of 2393°C. Plant height 86.5 cm, panicle length 16.1 cm, about 95 grains per panicle, 1000-grain weight 28.1 g,
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Cultivation Techniques for a Single-Season Rice Yield of 800 kg per Unit Area
I. Variety Selection: Select the best-quality varieties that have shown the best per-unit-area yield in actual production surveys over the past three years, such as "Chuanxiang No. 8." II. Main Recommended Techniques: Dry-raised seedlings, intensive cultivation techniques for single-season rice, soil-testing formula fertilization techniques, and integrated pest and disease control techniques. III. Specific Field Operations: 1. Dry-raised seedlings. (1) Before May 19, select fertile, loose vegetable garden field; at 6 sq m of seedling field per mu of main field, apply 5
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Introduction to the Characteristics of the Shaojia 1 Early Indica Rice Variety
In 2001 and 2002, this variety had an average yield of 419.1 kg per mu over the two years, an increase of 5.41% compared with the control "Jiayu 948"; the average full growth period in the two-year regional trial was 108.5 days, 0.8 days longer than that of "Jiayu 948"; plant height was 82.4 cm, effective panicles per mu were 248,000, total grains per panicle were 96, filled grains per panicle were 78.7, seed setting rate was 82%, and 1000-grain weight was 25.7 g. According to the 2001 identification results of the Institute of Plant Protection, Zhejiang Academy of Agricultural Sciences, the average grade of leaf blast was 1.5, and the average grade of panicle blast was 6.
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Control recommendations for the fourth generation of white-backed planthopper in rice issued, please carry out timely prevention and control
For the pesticide, use 40% chlorpyrifos (Xinnongbao, Saiben) 100 ml/mu plus 25% buprofezin (Puhsiling) 50 g/mu plus 5% jinggangmycin 200 ml/mu (or 30% Aimiao 15 ml/mu), mix with 30 kg of water for fine spraying.
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Application methods of Shangnong Iprobenfos for controlling rice blast
Shangnong Iprobenfos is a systemic fungicide with a pre-harvest interval of more than 20 days and low toxicity to humans and livestock. Its formulation is a 40% emulsifiable concentrate. Shangnong Iprobenfos is mainly used to control rice neck blast, and is also effective against rice sheath blight (small sclerotium disease), small grain sclerotium disease, rice sheath blight, and planthoppers, and also has insecticidal and lodging-resistant effects. Application methods: To control rice blast, sheath blight, and small sclerotium disease, dilute 600-1200 times with water and spray. Precautions: (1) This agent is also a cotton defoliant, so when applying
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What to Do When Rice Seedlings Suffer Fertilizer Burn? Master the Correct Remedial Methods
Blindly increasing the amount of chemical fertilizer applied will cause various physiological disorders in rice seedlings, making growth and development abnormal after transplanting. Applying excessive amounts of undecomposed organic fertilizer will also cause poor growth of rice. This kind of physiological disorder caused by excessive fertilizer application is "fertilizer burn." 1. Causes of fertilizer burn There are many causes of fertilizer burn in rice seedlings, which can be summarized into three: First, improper fertilization methods. For example, applying ammonia water or ammonium bicarbonate under high temperature at noon, the volatilized ammonia gas causes fumigation damage to rice plants.
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Detailed Introduction to Biological Water-Saving Technology in Rice
Biological water-saving technology refers to the use of a plant's own physiological and genetic potential to obtain more output under the same water conditions. Although it is difficult to research and remains underdeveloped, it requires little input and yields high benefits in practice. Using the large amount of germplasm resources obtained over many years, rice breeders have developed a number of strongly drought-resistant varieties through intervarietal hybridization, systematic selection, and introduction and evaluation, and have applied genetic engineering to the breeding of new varieties, continuously providing high-quality, strongly drought-resistant new hybrid rice combinations and new varieties with greater biological potential for water-saving cultivation.
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