Author: Lih-Yuh YuehPublisher:
ISBN:
Category :
Languages : en
Pages : 92
Book Description
Pesticide Effect on Nitrogen Fixation and Nodulation by Soybean and Lima Bean
Author: Lih-Yuh YuehDinitrogen Fixation and Growth of Faba Bean (Vicia Faba) Lima Bean (Phaseolus Limensis) and Soybean (Glycine Max) as Affected by Three Insecticides
Author: Rana TayyarPublisher:
ISBN:
Category : Nitrogen
Languages : en
Pages : 160
Book Description
Insecticides when applied in combination with rhizobial inoculation on legume seeds might be harmful to the Rhizobium and may reduce biological dinitrogen fixation (N2-fixation). In a pot experiment in 1986, three insecticides were tested for their effects on N2-fixation and growth of faba bean (Vicia faba), lima bean (Phaseolus limensis) and soybean (Glycine max). The chemicals were carbofuran (soil applied), actellic 2% and malathion(seed applied) at the rates of 4 g/m, 0.5g/kg of seeds and 2cc/kg of seeds respectively. Actellic showed no significant effect on any of the characters studied. On the other hand, carbofuran significantly increased the foliage dry weight, nodule number, nodule dry weight, pod number and seed yield in most cases. In contrast, malathion significantly decreased the nodule number, nodule dry weight, pod number and seed number particularly in soybean. By regression analysis, a highly significant and positive relationship was observed between shoot % nitrogen on one hand and foliage dry weight and nodule number on the other in almost all treatment combinations. In addition, a positive and significant relationship was also found between foliage dry weight, nodule number and nodule dry weight at the flowering, pod initiation and pod filling stages.
Effect of Some Insecticides on Rhizobium Inoculation, Nodulation and Symbiotic Nitrogen Fixation of Soybeans
Author: Marshall SwindellPublisher:
ISBN:
Category : Insecticides
Languages : en
Pages : 66
Book Description
Acta Agronomica Hungarica
Author: Optimization of Plant Nutrition
Author: M.A. FragosoPublisher: Springer Science & Business Media
ISBN: 9401724962
Category : Science
Languages : en
Pages : 638
Book Description
The world-wide shortage of plant production menacing the survival of many people demands for more and better research, particularly on how to increase food and where it is most needed. Major problems of international concern for the scientific community are the availability in soil media of macro and micro nutrients and the efficiency of nutrient uptake by plant roots, the interactions between nutrients and other factors, the distribution of nutrients in different plant species, biochemical functions of nutrient elements, and their contribution to plant growth, yield and product quality. Feasibility and profit are also permanent concerns about plant nutrition in crop management, to which new require ments are now imposed by the need to decrease pollution hazards, a problem of prime importance to preserve the environment of the future. is A deeper insight into basic knowledge further required as well as into practical problems in the domains of agriculture, horticulture, and forestry. Such has been the concern of the International Association for the Optimization of Plant Nutrition (IAOPN) since 1964, promoting International Colloquia every four years as an opportunity for scientists concerned with plant nutrition to report new findings and to exchange ideas, experiences, and techniques. The Eighth International Colloquium for the Optimization of Plant Nutrition was hosted by Portugal and held in Lisbon from 31 August to 8 September 1992, with 280 delegates from 34 countries.
Masters Theses in the Pure and Applied Sciences
Author: Wade H. ShaferPublisher: Springer Science & Business Media
ISBN: 1461534747
Category : Science
Languages : en
Pages : 421
Book Description
Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volumes were handled by an interna tional publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 34 (thesis year 1989) a total of 13,377 theses titles from 26 Canadian and 184 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 34 reports theses submitted in 1989, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.
Advances in Biology and Ecology of Nitrogen Fixation
Author: Takuji OhyamaPublisher: BoD – Books on Demand
ISBN: 9535112163
Category : Science
Languages : en
Pages : 286
Book Description
Biological nitrogen fixation has essential role in N cycle in global ecosystem. Several types of nitrogen fixing bacteria are recognized: the free-living bacteria in soil or water; symbiotic bacteria making root nodules in legumes or non-legumes; associative nitrogen fixing bacteria that resides outside the plant roots and provides fixed nitrogen to the plants; endophytic nitrogen fixing bacteria living in the roots, stems and leaves of plants. In this book there are 11 chapters related to biological nitrogen fixation, regulation of legume-rhizobium symbiosis, and agriculture and ecology of biological nitrogen fixation, including new models for autoregulation of nodulation in legumes, endophytic nitrogen fixation in sugarcane or forest trees, etc. Hopefully, this book will contribute to biological, ecological, and agricultural sciences.
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