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Author : M. J. da SILVA
Publisher :
ISBN 13 :
Total Pages : 2 pages
Book Rating : 4.:/5 (78 download)
Download or read book Avaliacao de diferentes cultivares de algodoeiro herbaceo sob condicoes irrigadas written by M. J. da SILVA and published by . This book was released on 1981 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. H. de ALBUQUERQUE
Publisher :
ISBN 13 :
Total Pages : 124 pages
Book Rating : 4.:/5 (78 download)
Download or read book Avaliação de doses de zinco e boro no algodoeiro herbáceo sob condições de sequeiro written by J. H. de ALBUQUERQUE and published by . This book was released on 2007 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Devido à sua posição de segunda maior produtora de algodão no Brasil, a região Nordeste é, aqui, uma das culturas mais importantes, haja vista que a deficiência ou o excesso de qualquer nutriente pode comprometer a produtividade e a qualidade de várias características intrínsecas ao algodoeiro; foi pensando nisto que se propôs estudar, em condições de campo, avaliar os efeitos de doses da adubação com boro e zinco, e a influência isolada e/ou em conjunto sobre algumas características do crescimento, desenvolvimento, produtividade do algodão e qualidade de fibra na cultura desta malvácea. O experimento foi conduzido na Estação Experimental da Embrapa Algodão, no município de Missão Velha, CE, no Cariri cearense, de fevereiro a junho de 2003, em solo franco/arenoso, cujo delineamento experimental foi blocos ao acaso e os tratamentos distribuídos em esquema fatorial 4 x 4 + 1, sendo quatro doses de boro (0,0;2,0; 4,0 e 6,0 kg.ha-1 (na forma de Ácido Bórico com 17% de B) e quatro doses de zinco (0,0; 0,4; 0,8 e 1,2 kg.ha-1 (na forma de Sulfato de Zinco com 20% de Zn) e mais uma tetemunha relativa (adubação de NPK), com quatro repetções, perfazendo o total de 68 parcelas cultivar BRS-201 ; cada parcela ocupava uma área de 20,0 m2 (4,0 m x 5,0 m), sendo que a área útil de cada parcela era de 2,0 m x 4,0 m = 8,0m2, contendo quatro fileiras cada uma; utilizaram-se as duas centrais para produtividade e qualidade da fibra. Das variáveis, estudaram-se: altura de planta (AP), diâmetro caulinar de planta (DC) e área foliar de planta (AF) aos 30, 60, 90 e 120 dias após a emergência das plântulas (dae), produção de algodão em rama (PAR), peso de 100 sementes (P/100S), peso de algodão em pluma (PP), percentagem de fibra (%Fibra), peso de 1 capulho (PIC) e as características tecnológicas da fibra (comprimento da fibra (UHM), uniformidade de comprimento (UNF), índice de fibras curtas (SFI), resistência de fibra (STR), alongamento da fibra (ELG), finura em micronaire (MIC), reflectância (Rd), amarelecimento da fibra (+ b) e fiabilidade (CSP)). Os resultados permitem afirmar que para a variável AP houve efeitos significativos (P
Author : L. A. R. Santos
Publisher :
ISBN 13 :
Total Pages : 3 pages
Book Rating : 4.:/5 (78 download)
Download or read book Avaliacao de cultivares de algodoeiro herbaceo (Gossypium hirsutum, L.) sob regime de irrigacao suplementar written by L. A. R. Santos and published by . This book was released on 1984 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : EMBRAPA. Centro Nacional de Pesquisa do Algodao (Campina Grande,PB).
Publisher :
ISBN 13 :
Total Pages : 6 pages
Book Rating : 4.:/5 (78 download)
Download or read book Recomendacoes tecnicas para o cultivo do algodoeiro herbaceo em condicoes irrigadas written by EMBRAPA. Centro Nacional de Pesquisa do Algodao (Campina Grande,PB). and published by . This book was released on with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cultivares; Preparo do solo; Adubacao; Espacamento; Plantio manual; Plantio mecanico; Desbastes; Irrigacao; Controle de plantas daninhas; Controle de pragas; Controle de doencas; Colheita e armazenamento.
Author : J.F.de MEDEIROS
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (78 download)
Download or read book Comportamento de cultivares de algodão em resposta a doses de boro no solo written by J.F.de MEDEIROS and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: O conhecimento do comportamento das cultivares de algodoeiro quanto á tolerância á falta ou ao excesso de boro é relevante para orientar recomendações de corretivos e fertilizantes, escolha de cultivares e programas de melhoramento genético. Assim, o objetivo deste trabalho foi avaliar o comportamento de cultivares de algodoeiro herbáceo (Gossypium hirsutum L.) em resposta a doses de boro no solo. O experimento foi conduzido na Embrapa Algodão sob condições de casa de vegetação.
Author :
Publisher :
ISBN 13 :
Total Pages : 712 pages
Book Rating : 4.E/5 ( download)
Download or read book Agrindex written by and published by . This book was released on 1983 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. Smartt
Publisher : Springer Science & Business Media
ISBN 13 : 9401107335
Total Pages : 753 pages
Book Rating : 4.4/5 (11 download)
Download or read book The Groundnut Crop written by J. Smartt and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 753 pages. Available in PDF, EPUB and Kindle. Book excerpt: Groundnuts (peanuts) are of great economic importance internationally. This book provides thorough coverage of all aspects of the crop, each chapter being written by experts in particular areas. The book will be invaluable to all those involved with the group, particularly agronomists, plant scientists and food scientists.
Author : Brígida Souza
Publisher : Springer
ISBN 13 : 9783030247355
Total Pages : 0 pages
Book Rating : 4.2/5 (473 download)
Download or read book Natural Enemies of Insect Pests in Neotropical Agroecosystems written by Brígida Souza and published by Springer. This book was released on 2021-01-21 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book aims to address the importance of natural enemies and functional diversity for biological control in Neotropical agroecosystems. Several aspects related to the conservation of natural enemies, such as vegetation design and climate change, are discussed in Part 1 and the bioecology of several insects groups used in biological control in Latin America is presented in Part 2. Part 3 is devoted to mass production of natural enemies while Part 4 describes how these insects have been used to control of pests in major crops, forests, pasture, weeds and plant diseases. Lastly, Part 5 reports Latin-American experiences of integration of biological in pest management programs.
Author : N.K. Fageria
Publisher : CRC Press
ISBN 13 : 9781560222897
Total Pages : 366 pages
Book Rating : 4.2/5 (228 download)
Download or read book Physiology of Crop Production written by N.K. Fageria and published by CRC Press. This book was released on 2006-05-16 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: This single volume explores the theoretical and the practical aspects of crop physiological processes around the world The marked decrease over the past century in the land available for crop production has brought about mounting pressure to increase crop yields, especially in developing nations. Physiology of Crop Production provides cutting-edge research and data for complete coverage of the physiology of crop production, all in one source, right at your fingertips. This valuable reference gives the extensive in-depth information soil and crop professionals need to maximize crop productivity anywhere the world. Leading soil and plant scientists and researchers clearly explain theory, practical applications, and the latest advances in the field. Crop physiology is a vital science needed to understand crop growth and development to facilitate increases of plant yield. Physiology of Crop Production presents a wide range of information and references from varying regions of the world to make the book as complete and broadly focused as possible. Discussion in each chapter is supported by experimental data to make this book a superb resource that will be used again and again. Chapter topics include plant and root architecture, growth and yield components, photosynthesis, source-sink relationship, water use efficiency, crop yield relative to water stress, and active and passive ion transport. Several figures and tables accompany the extensive referencing to provide a detailed, in-depth look at every facet of crop production. Physiology of Crop Production explores management strategies for: ideal plant architecture maximizing root systems ideal yield components maximizing photosynthesis maximizing source-sink relationship sequestration of carbon dioxide reducing the effects of drought improving N, P, K, Ca, Mg, and S nutrition improving micronutrient uptake Physiology of Crop Production is an essential desktop resource for plant physiologists, soil and crop scientists, breeders, agronomists, agronomy administrators in agro-industry, educators, and upper-level undergraduate and graduate students.
Author : R. Lal
Publisher :
ISBN 13 :
Total Pages : 220 pages
Book Rating : 4.3/5 (91 download)
Download or read book Soil Management for Sustainability written by R. Lal and published by . This book was released on 1991 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book manuscripts presented originally at a World Association of Soil and Water Conservation conference held in 1989 are collected. Topics include basic processes (e.g. soil structure, soil erosion, soil compaction); management options (e.g. conservation tillage); policy issues and priorities
Author : Food and Agriculture Organization of the United Nations. Soil Resources, Management, and Conservation Service
Publisher : Food & Agriculture Org.
ISBN 13 : 9789251038901
Total Pages : 92 pages
Book Rating : 4.0/5 (389 download)
Download or read book Agro-ecological Zoning written by Food and Agriculture Organization of the United Nations. Soil Resources, Management, and Conservation Service and published by Food & Agriculture Org.. This book was released on 1996 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 118 pages
Book Rating : 4.A/5 ( download)
Download or read book Ciência agronômica written by and published by . This book was released on 1995 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Stephen R. Gliessman
Publisher : CRC Press
ISBN 13 : 1420041517
Total Pages : 223 pages
Book Rating : 4.4/5 (2 download)
Download or read book Agroecosystem Sustainability written by Stephen R. Gliessman and published by CRC Press. This book was released on 2000-09-25 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: Agroecologists from around the world share their experiences in the analysis and development of indicators of agricultural sustainability in Agroecosystem Sustainability: Developing Practical Strategies. The authors build on the resource-conserving aspects of traditional, local, and small-scale agriculture while at the same time drawing on modern e
Author : F. W. Howard
Publisher : CABI
ISBN 13 : 9780851997056
Total Pages : 436 pages
Book Rating : 4.9/5 (97 download)
Download or read book Insects on Palms written by F. W. Howard and published by CABI. This book was released on 2001 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: Palms constitute one of the largest botanical families and include some of the world's most important economic plants. This book reviews the interrelationships between palms and insects. The host plants, distribution and bionomics of representative insects are discussed.
Author : Canadian Council of Ministers of the Environment. Subcommittee on Environmental Quality Criteria for Contaminated Sites
Publisher : Canadian Council of Ministers of the Environment
ISBN 13 :
Total Pages : 208 pages
Book Rating : 4.3/5 (129 download)
Download or read book A Protocol for the Derivation of Environmental and Human Health Soil Quality Guidelines written by Canadian Council of Ministers of the Environment. Subcommittee on Environmental Quality Criteria for Contaminated Sites and published by Canadian Council of Ministers of the Environment. This book was released on 1996 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document provides the rationale and guidance for developing environmental and human health soil quality guidelines for contaminated sites in Canada. It begins with background information on the National Contaminated Sites Remediation Program assessment and remediation framework, including the scientific tools developed to help assess and remediate contaminated sites. Information on the principles behind the soil quality guidelines derivation protocol is also included. This is followed by description of the processes for deriving environmental and human health guidelines. The protocol considers the effects of contaminated soil exposure on human and ecological receptors for given land uses (agricultural, residential/parkland, commercial, and industrial). The final section gives guidance on derivation of the final soil quality guideline. Appendices include information on methods and models employed in the ecological sections of the document, and on check mechanisms for indirect exposure from soil contaminants for the human health guidelines.
Author : L. R. Jeppson
Publisher : Univ of California Press
ISBN 13 : 9780520023819
Total Pages : 710 pages
Book Rating : 4.0/5 (238 download)
Download or read book Mites Injurious to Economic Plants written by L. R. Jeppson and published by Univ of California Press. This book was released on 1975-01-01 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to the acari, Population ecology, History of chemical control and mite resistance, Principles of chemical control of plant-feeding mites, Biological enemies of mites, Mites and plant diseases, The tetranychidae donnadieu, Injurious tetranychid mites, The eriophyoidea nalepa, Injurious eriophyoid mites.
Author :
Publisher :
ISBN 13 :
Total Pages : 986 pages
Book Rating : 4.2/5 (377 download)
Download or read book Ciência e cultura written by and published by . This book was released on 1981 with total page 986 pages. Available in PDF, EPUB and Kindle. Book excerpt:
