Water Production Functions for Maize (Zea Mays L.) and Groundnut (Arachis Hypogaea L.) Under Limited Water Supply PDF Download
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Author: K. B. Suneetha Devi
Publisher:
ISBN:
Category :
Languages : en
Pages : 301
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Author: K. B. Suneetha Devi
Publisher:
ISBN:
Category :
Languages : en
Pages : 301
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Author: Hanumanthappa D.C.
Publisher:
ISBN:
Category :
Languages : en
Pages : 765
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Author: Edmundo Acevedo Hinojosa
Publisher:
ISBN:
Category :
Languages : en
Pages : 534
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An analysis of growth of maize in relation to water in the soil-plant system was conducted in the field at Davis, California. The time course of root and aerial growth, and water uptake was investigated under conditions of a mild prolonged water stress, with emphasis of defining the soil and crop water status, photosynthesis and the generation of the yield and yield components also were studied. Hybrid maize was grown in deep alluvial soil with high mositure holding capacity. Three irrigation treatment were: a) Weekly 5-cm irrigation starting 21 days after planting (I treatment); b) No irrigation (NI treatment); c) Weekly 5-cm irrigation starting 55 days after planting (155 treatment). Shoot growth. NI treatment, compared to I treatment, reduced crop height 6.5% leaf area 11% although leaf y (water potential) generally was only 2 bars lower at midday during vegetative growth. Diunally, leaf elongation rate (in both treatment) was unespectedly fastest in early afternoon when leaf y was near the daily minimum. Leaf (solute potential) changes lagged behind y so high occurred at near minimum y values, and daytime elongation rates (presumably when temperature was not limiting) correlated with - leaf changes were associated with those of oraganic solutes; soluble leaf carbohydrates changes accounted for 40% of fluctuations. Consistently lower leaf elongation rates in NI treatment could m-not be explained by differences alone, however. Root growth water absorption. Water uptake at various soil depth and times (...).
Author: E. Velazquez
Publisher: Springer Science & Business Media
ISBN: 1402057652
Category : Technology & Engineering
Languages : en
Pages : 352
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In 2002, sixty international specialists met to discuss problems of high P-unavailability as a soil nutrient for crops, and the hazards of increased phosphate input to aquatic habitats from industrial and mining activities, sewage disposal, detergents, and other sources. Among the presentations were updated solutions to enhance P-uptake by plants, bioremediation potential in the rehabilitation of ecosystems, taxonomic characterization interactions with mycorrizae, the physiological and molecular basis of PSM, and more.
Author: International Assessment of Agricultural Knowledge, Science, and Technology for Development (Project)
Publisher: Agriculture at a Crossroads
ISBN:
Category : Business & Economics
Languages : en
Pages : 172
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Book Description
The International Assessment of Agricultural Knowledge, Science, and Technology for Development (IAASTD) looks realistically at how we could effectively use agriculture/AKST to help us meet development and sustainability goals. An unprecedented three-year collaborative effort, the IAASTD involved more than 400 authors in 110 countries and cost more than $11 million. It reports on the advances and setbacks of the past fifty years and offers options for the next fifty years. The results of the project are contained in seven reports: a Global Report, five regional Sub-Global Assessments, and a Synthesis Report. The Global Report gives the key findings of the Assessment, and the five Sub-Global Assessments address regional challenges. The volumes present options for action. All of the reports have been extensively peer-reviewed by governments and experts and all have been approved by a panel of participating governments. The Sub-Global Assessments all utilize a similar and consistent framework: examining and reporting on the impacts of AKST on hunger, poverty, nutrition, human health, and environmental/social sustainability. The five Sub-Global Assessments cover the following regions: Central and West Asia and North Africa (CWANA) East and South Asia and the Pacific (ESAP) Latin America and the Caribbean (LAC) North America and Europe (NAE) Sub-Saharan Africa (SSA)
Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 1238
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Author: Zakaria M. Solaiman
Publisher: Springer
ISBN: 3662453703
Category : Technology & Engineering
Languages : en
Pages : 404
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This volume explores the various functions and potential applications of mycorrhizas, including topics such as the dynamics of root colonization, soil carbon sequestration and the function of mycorrhizas in extreme environments. Some contributions focus on the use of arbuscular mycorrhizal fungi in various crop production processes, including soil management practices, their use as biofertilizers and in relation to medicinal plants. Other chapters elucidate the role of arbuscular mycorrhizal fungi in the alleviation of plant water stress and of heavy metal toxicity, in the remediation of saline soils, in mining-site rehabilitation and in the reforestation of degraded tropical forests. In addition to their impact in ecosystems, the economic benefits of applying arbuscular mycorrhizal fungi are discussed. A final chapter describes recent advances in the cultivation of edible mycorrhizal mushrooms.
Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 1280
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Author: Manoj Menon
Publisher: Frontiers Media SA
ISBN: 2889630986
Category :
Languages : en
Pages : 122
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Author: J. D. Rhoades
Publisher: Artabras
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 156
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