1 edition of Nitrogen and rice. found in the catalog.
Nitrogen and rice.
|Contributions||International Rice Research Institute.|
|The Physical Object|
|Pagination||499 p. :|
|Number of Pages||499|
Nitrogen is the most limiting element for crop production. Traditionally, expensive commercial fertilizers are used to correct soil nitrogen deficiencies. Indeed, 50% of the increase in rice yields after World War II can be attributed to increased fertilizer nitrogen use. Although an increased. Nitrogen transformations in the rhizosphere of different tree types in a seasonally flooded soil. Plant Soil Environ. ; – Liu WJ, Zhu YG, Hu Y, Williams PN, Gault AG, Meharg AA, et al. Arsenic sequestration in iron plaque, its accumulation and speciation in mature rice plants (Oryza sativa L.) Environ Sci Technol. ;
Nitrogen fixation associated with 16 rice (Oryza saliva) varieties or lines of short and long durations, grown in a flooded field, during the wet season and dry season was measured by a simple and rapid acetylene reduction ng the plants at heading stage for 3 consecutive days was found suitable for determining varietal differences in associative N 2 fixation. Yield formation in rice mainly depends on the degree of coordination of carbon and nitrogen (C-N) metabolism during the filling stage [1,2].It has been shown that 9–43% of grain yield comes from unstructured carbohydrates stored before flowering, while postanthesis photosynthetic products contribute 57–91% of yield , and 13 CO 2 tracing technology showed that the aboveground 13 C.
The national average yield of rice is about t ha-1 which is lower compared to the world average productivity of tones ha-1 mainly constrained by soil nutrient deficiencies. An experiment on nitrogen and phosphorous fertilizer rates was conducted on upland rice on Nerica-4 variety in Fogera and Libokemkem districts in three consecutive main cropping seasons of the years , and. Nitrogen Metabolism in Rice P. Basuchaudhuri CRC Press pages $ Hardcover S Basuchaudhuri discusses different facets of nitrogen metabolism in rice, including the metabolic pathways, ontogenic changes, biotic and abiotic influences, and genetic aspects.
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The book is divided into ten chapters that feature the steps of nitrogen assimilation and utilization in rice plant systems. Apart from describing the steps and pathways of nitrogen metabolism in rice, the book also emphasis the changes taking place due to genotypes and environmental factors Nitrogen and rice.
book stressors during rice growth and development. Try the new Google Books. Check out the new look and enjoy easier access to your favorite features. Try it now. No thanks.
Try the new Google Books Get print book. No eBook available Nitrogen and Rice. International Rice Research Institute, - Fertilizers - pages. 0 Reviews.
Nitrogen and rice. Los Baños, Philippines: International Rice Research Institute, (OCoLC) Document Type: Book: All Authors / Contributors: International Rice Research Institute.
OCLC Number: Notes: Papers presented at the symposium sponsored by the International Rice Research Institute. Description: pages. Food security is a major global issue because of the growing population and decreasing land area.
Rice (Oryza sativa L.) is the most important staple cereal crop in the world. Application of nitrogen (N) fertilizer has improved crop yield in the world during the past five decades but with considerable negative impacts Nitrogen and rice.
book the environment. New solutions are therefore urgently needed to Cited by: 4. PDF | On Feb 1,Shuangjie Huang and others published Nitrogen Use Efficiency in Rice | Find, read and cite all the research you need on ResearchGate.
Nitrogen is an essential primary nutrient for plant growth and development. With the demand for high growth and yield of plants and the depletion of organics in soil, nitrogen availability in soil has become insufficient. This simple and comprehensive book covers the important and current information regarding rice plant biology and nitrogen metabo.
Agriculture and Animal Husbandry. This book covers the following topics: Study of Soil and Climate, Plant Nutrients, Manures and Fertilizers, Field Crops, Horticulture Crops, Different diseases of Crop Plants, Pests of Crops Plants, Weeds and Weed Control, Plant Propagation and Nursery, Advance Techniques in Agriculture, Green House and Poly House, Feeds and Fodders, study of Cattle.
Rice is capable of taking up both nitrate (NO 3 −) and ammonical (NH 4 +) forms of nitrogen (N).It is largely grown under flooded cultivation when NH 4 + is the main form of available soil N.
The root knot nematode, Meloidogyne graminicola, can cause serious damage to rice crops and disturb N uptake and have investigated if the N supply form can influence the susceptibility. Shrestha R K and Ladha J K Genotypic variation in promotion of rice dinitrogen fixation as determined by nitrogen dilution.
Soil Sci. Soc. 60, – CrossRef Google Scholar. The ability of Azolla’s symbiont, Anabaena, to sequester atmospheric nitrogen has been used for thousands of years in the Far East, where Azolla is extensively grown in rice paddies to increase rice production by more than to 50%.
Rice is an enormously important staple in many tropical and temperate regions of the world. Billions of people rely on the crop to live and hundreds of millions. Coordinating Postanthesis Carbon and Nitrogen Metabolism of Hybrid Rice through Different Irrigation and Nitrogen Regimes by Yongjian Sun 1, Yuanyuan Sun 2, Fengjun Yan 1, Yue Li 1, Yuxia Wu 1, Changchun Guo 1, Peng Ma 1, Guotao Yang 1, Zhiyuan Yang 1 and Jun Ma 1,*.
As shown in Table 2, swine manure and urea as nitrogen additions for the dry AD of rice straw were mixed at various ratios to achieve the same C/N ratios of ab which were, and for the ratios of swine manure to urea (SM/U), respectively, based on the calculation of nitrogen in the dry matter of swine.
The steadily increasing cost of nitrogen fertilizer has resulted in more emphasis on basic and applied studies to improve nitrogen use efficiency in lowland rice.
The efficiency of fertilizer nitrogen in farmers' fields is shockingly low ~ a luxury resource-scarce farmers in tropical Asia can ill. The water fern Azolla harbors nitrogen-fixing cyanobacterium Anabaena azollae as symbiont in its dorsal leaves and is known as potent N 2 fixer.
Present investigation was carried out to study the influence of fresh Azolla when used as basal incorporation in soil and as dual cropped with rice variety Mahsoori separately and together with and without chemical nitrogen fertilizer in pots kept.
Rice productivity in Ethiopia is estimated at t ha -1, which is much lower than the World’s average of t ha Weeds, pests, soil nutrient deficiencies and terminal moisture stress are the major causes of low rice productivity in Ethiopia.
Poor soil fertility is among the major factors limiting the rice production. Rubisco and nitrogen relationships in rice: Leaf photosynthesis and plant growth. Soil Science and Plant Nutrition: Vol.
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Rice is the second most important cereal in Ghana after maize. However, current production levels are about 47% of the country’s requirements resulting in huge annual imports of the crop. One major constraint to production has been low soil nutrients and poor nitrogen management.
Nitrogen is not only a major nutrient but also most often the most limiting nutrient element in lowland ecologies. Select 6 - Nitrogen Fixation in Flooded Rice Soils and Aquatic and Sediment Systems. Book chapter Full text access. 6 - Nitrogen Fixation in Flooded Rice Soils and Aquatic and Sediment Systems This book is the first laboratory manual to bring together basic procedures for measurement of stable and radioactive isotopes of nitrogen, with.
Nitrogen efficiency in tropical rice is low. 15 N recovery rarely exceeds 30–40% in wetland rice production systems.
Ammonia (NH 3) volatilization and denitrification are recognized as major nitrogen loss mechanisms in such systems. Information on the relative importance of the two loss processes is available for few sites in Asia.
records for rice production have been kept since for yields, harvested acres and prices (Table ). Rice acreage gradually increased until when the first government acreage controls stabilized rice production on aboutacres.
Marketing quotas were lifted in and rice acreage increased, reaching a peak in.Biological nitrogen fixation is a very valuable alternative to nitrogen fertilizer. This process will be discussed in the “Biological Nitrogen Fixation” book.
A wide array of free-living and associative nitrogen fixing organisms (diazotrophs) will be covered. The most extensively studied and applied example of biological nitrogen fixation is the symbiotic interaction between nitrogen.Nitrogen is one of the most yield-limiting nutrients in rice production around the world (Fageria et al., ), especially in tropical Asian soils and almost every farmer has to apply the costly.