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Correct Methods and Technical Key Points for Returning Rice Straw to the Field
1. Rice straw mulching in wheat fields. After wheat sowing is completed, use 250-300 kg of rice straw per mu, cut into 10-20 cm straw segments, and spread evenly over the field so that the straw does not form piles and the soil is not left exposed. 2. Rice straw mulching in rapeseed fields. When transplanting rapeseed, plant the seedlings according to the specified spacing into holes with sufficient basal fertilizer, cover with soil, and then evenly spread rice straw over the whole field at 300 kg/mu, so that the straw does not cover the holes (seedlings) and the soil is not left exposed, while also applying integrated chemical weed control and necessary field management measures. 3. Drainage and
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Introduction to the Green Rice 24 (9724) Rice Variety
This variety is a new conventional medium indica variety with high quality, high yield, and disease resistance introduced by Sande Company of the Green Institute, Anhui Academy of Agricultural Sciences. In recent years, it has been planted on a large scale in southern Anhui, northern Anhui, and areas along the Huai River in our province, showing the characteristics of both high quality and high yield, and has been listed by various places as the preferred variety for quality rice development. The variety has a whole growth period of 140 days, a general yield of 550 kg, and high-yield fields can reach 600 kg. Plant height is 120 cm, tillering ability is medium, large panicles with many grains, total grains per panicle 145, 1000-grain weight 28.7 g, seed setting rate 88%, resistant to
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Introduction to the Beidao No. 1 rice variety and key cultivation techniques
Japonica rice, bred by the Suihua City Northern Rice Research Institute. In the 1997-1998 regional trial, the average yield was 8311.0 kg/hm2, an average increase of 8.0% over the control Dongnong 416; in the 1999 production trial, the average yield was 7691.8 kg/hm2, an average increase of 9.1% over the control Dongnong 416. The growth period is 131 days, requiring an active accumulated temperature of 2506.8°C. Plant height is 89 cm, panicle length is 17.4 cm, 101 grains per panicle, and 1000-grain weight is 26 g. Medium tillering ability, strong stems and resistant to lodging, favors fertilizer and water,
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Occurrence Patterns and Control Methods of the Rice Water Fly in the Aksu Region
The rice water fly (Ephydra macellaria Egger) belongs to the order Diptera, family Ephydridae. It occurs extremely severely in newly reclaimed salinized rice areas and is one of the major pests in rice production in the Aksu region. The insect gnaws on primary and secondary roots, causing poor development of rice seedlings or floating seedling death. Surveys of rice in the Aksu region from 2002 to 2003 found that yield losses in lightly infested fields reached 5.8%-8.1%, and in heavily infested fields reached 40.5%-56.1%, seriously affecting
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How to Return Rice Straw to the Field? A Detailed Guide to Five Practical Techniques
1. Short-cut rice straw incorporation by plowing technique. Cut the rice straw by hand or machine into lengths of 15-20 cm, and spread it evenly over the paddy field. Generally, the amount of dry rice straw spread per mu is 200-250 kg; if early rice straw is used for return, the amount spread per mu of main field is 1/2 or 2/3 of the total rice straw per mu. After the rice straw is spread, on the basis of the original fertilizer amount, apply an additional 8-12 kg of ammonium bicarbonate or 5-6 kg of urea per mu as base fertilizer; if it is a cold-waterlogged field, apply 15-25 kg of lime per mu in combination to accelerate the softening and rotting of the rice straw. The final
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Fujian Academy of Agricultural Sciences Successfully Bred High-Quality Early Indica Rice Jingfu 4a
After 5 years of effort, the Fujian Academy of Agricultural Sciences has successfully bred a high-quality early indica rice - Jingfu 4a. Experts believe that this research achievement has reached the advanced level of similar international research. This achievement was successfully cultivated through arduous efforts by Zhou Tianli, a researcher at the Rice and Wheat Research Institute of the Fujian Academy of Agricultural Sciences, and his research group. Using Jingfu 4a to formulate early hybrid combinations can greatly improve the quality of China's early-season hybrid rice. According to relevant experts, for a considerable period of time in China, the high-quality male sterile lines used to formulate early hybrid combinations
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Detailed Introduction to the Wandao 30 Rice Variety
Wandao 30 (formerly known as 88-23) was developed by the Anqing City Agricultural Science Institute in Anhui Province through systematic selection from variant plants of the late japonica variety Wangcheng Xuanliu. It passed certification by the Anhui Provincial Crop Variety Certification Committee in May 1996. After years of trials and demonstrations, it has shown high yield, good quality, good plant architecture, tolerance to fertilizer, resistance to lodging, and disease resistance, making it especially suitable for double-cropping late rice cultivation in the riverside region. Characteristics: plant height 75-85cm, compact plant type, dark green leaf color, large opening angle of lower leaves, wide leaves, short and erect flag leaf, which is beneficial for photosynthesis. Sturdy stems, tolerant to fertilizer and resistant to lodging.
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Morphological Characteristics and Control Techniques of the Rice Skipper (Pelopidas mathias)
The straight-lined skipper belongs to the order Lepidoptera, family Hesperiidae. Adults have a body length of 17-19 mm and a wingspan of 36-42 mm. The body and wings are both dark brown with a golden sheen, and the antennae are club-shaped. The forewings have 8 white semi-transparent markings arranged in a semi-ring; the hindwings also have 4 white markings arranged in a straight line. The egg is hemispherical, slightly depressed at the top, with a hexagonal reticulated surface pattern; it is light green when first laid and purplish-red before hatching. Larvae generally have 5 instars. Newly hatched larvae have a black head and a grayish-green body; after the 2nd to 3rd instar, the head color gradually fades to light brown. Mature larvae have a body length of
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Introduction to the Characteristics of the Kongyu 131 Japonica Rice Variety
Bred by the Rice Research Institute of the Heilongjiang Academy of Land Reclamation Sciences. In the 1995-1996 regional trials, the average yield was 6767 kg/hm2, an average increase of 1.6% over the control Hejiang 19; in the 1999 production demonstration, the average yield was 7684.5 kg/hm2, an increase of 8.9% over the control Hejiang 19. The growth period is 127 days, requiring an active accumulated temperature of 2320°C. Plant height is 80 cm, panicle length is 14 cm, 80 grains per panicle, 1000-grain weight is 26.5 g, strong tillering ability, and a high percentage of productive tillers. 199
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What are the key cultivation techniques for rice-following beans?
Rice-following bean cultivation is a method in which, after the autumn rice harvest, the field is not ploughed or harrowed; instead, trenches are made, the field is divided into beds, and drainage is carried out, then soybeans are broadcast or dibbled on the bed surface and covered with rice straw. It has the advantages of simple planting, saving labour and time, low input, and good results, and is a short, flat, and fast project for raising multiple cropping and increasing grain, feed, and income. 1. Select improved varieties. There are many local soybean varieties; after mass purification and rejuvenation, those with good ecological adaptability, high yield, and disease resistance and with a moderate growth period can all be selected; for
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