Subsoil Constraints For Crop Production

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Subsoil Constraints For Crop Production

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Author : Teogenes Senna de Oliveira
language : en
Publisher: Springer Nature
Release Date : 2022-08-03

Subsoil Constraints For Crop Production written by Teogenes Senna de Oliveira and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-08-03 with Technology & Engineering categories.

This book will address the major subsoil physical and chemical constraints and their implications to crop production; Plant growth is often restricted by adverse physical and chemical properties of subsoils yet these limitations are not revealed by testing surface soils and hence their significance in crop management is often overlooked. The major constraints can be physical or chemical. Physical limitations such as poor/nil subsoil structure, sandy subsoils that do not provide adequate water or gravelly subsoils and, etc. On the other hand, chemical constraints include acidity/alkalinity, high extractable Al or Mn, low nutrient availability, salts, boron toxicity and pyritic subsoils. Some of these constraints are inherent properties of the soil profile while others are induced by crop and soil management practices. This aim of this book is to define the constraints and discuss amelioration practices and benefits for crop production. This book will be of interest to readers involved with agriculture and soil sciences in laboratory, applied or classroom settings.

Subsoil Constraints To Crop Production In North Eastern Australia

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Author :
language : en
Publisher:
Release Date : 2004

Subsoil Constraints To Crop Production In North Eastern Australia written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Plant-soil relationships categories.

Managing Subsoil Constraints For Increased Productivity And Water Use Efficiency

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Author : Gary John Clark
language : en
Publisher:
Release Date : 2010

Managing Subsoil Constraints For Increased Productivity And Water Use Efficiency written by Gary John Clark and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Clay soils categories.

This was attributed to less decomposition of the wheat stubble, in comparison to the lucerne, resulting in a higher content of soil carbon. A further field study investigated the residual effects, after 3 seasons of crop production, of subsoil amelioration, with organic amendments, on the shoot growth, soil water-use and grain yield. In addition, soil structural changes were assessed in relation to the spatial pattern of samples, either being directly beneath a canola plant or away from the plant. Improved shoot growth and up to a 30% increase in grain yield was found in the organic treatments. Macroaggregate stability was found to be highest in the organic treatments. Furthermore, the presence of canola plants also contributed to a positive increase in macroaggregates. In conclusion, this thesis has demonstrated that the addition of organic amendments, or root growth, can improve the structure of sodic clay subsoil. Primarily, this is achieved through the stimulation of the soil microbial activity.

Soil Constraints On Crop Production

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Author : Yash Dang
language : en
Publisher: Cambridge Scholars Publishing
Release Date : 2022-08-19

Soil Constraints On Crop Production written by Yash Dang and has been published by Cambridge Scholars Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-08-19 with Business & Economics categories.

Globally, over two thirds of soils are affected by physical, chemical, or biological soil constraints. These constraints cause significant yield loss, and, as such, identifying appropriate management strategies is crucial to ensure future world food production. In order to help agricultural researchers and practitioners better understand soil constraint management, this book comprehensively outlines the occurrence of the major soil constraints and the most appropriate strategies to manage these for sustainable food production. Importantly, it brings together experts from major agricultural regions globally to highlight approaches with the most success in different environmental and socioeconomic regions worldwide.

Soil Constraints On Crop Production

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Author : Yash Dang
language : en
Publisher:
Release Date : 2022-10

Soil Constraints On Crop Production written by Yash Dang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-10 with Soil management categories.

Globally, over two thirds of soils are affected by physical, chemical, or biological soil constraints. These constraints cause significant yield loss, and, as such, identifying appropriate management strategies is crucial to ensure future world food production. In order to help agricultural researchers and practitioners better understand soil constraint management, this book comprehensively outlines the occurrence of the major soil constraints and the most appropriate strategies to manage these for sustainable food production. Importantly, it brings together experts from major agricultural regions globally to highlight approaches with the most success in different environmental and socioeconomic regions worldwide.

Effect Of Subsoil Constraints On The Chemical Potential Of Soil Potassium In A Catena In Nsw Southern Tablelands

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Author : Seija Tuomi
language : en
Publisher:
Release Date : 2023

Effect Of Subsoil Constraints On The Chemical Potential Of Soil Potassium In A Catena In Nsw Southern Tablelands written by Seija Tuomi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023 with categories.

Soil potassium (K) is of great agronomic importance to crop yield quality and quantity in Australia. A soil catena (toposequence) relates soil profiles at a functional scale, enabling interpretation of the landscape position effect on soil K, subsoil characteristics, soil horizon configurations and related patterns in soil chemical properties. The Fairview Farm soils have developed over a regionally extensive Siluro-Devonian felsic volcanic substrate. Linking soil parameters to hillslope processes at Fairview Farm likely mirrors processes operating at sites in a similar landscape setting and with similar agricultural land use. Naturally occurring K in soils comes from the weathering of rocks and the breakdown products of minerals in the long term (Sparks et.al, 1987), and in the short term it comes from the turnover of organic materials and further breakdown of soil particles. The nutrient capacity of K in the soil is determined by the total amount of exchangeable K present in the soil colloid and the energy at which it is delivered. This thermodynamic term is expressed as the relative activity ratio and exchange of K+ with Ca2+ and Mg2+. The K potential of a soil is a free energy measure of the amount of work plants need to do to acquire K from the soil and this is unique to each soil. Soil K potential in dryland agriculture can be measured by the isotherm technique. At Fairview Farm, situated between Binalong and Boorowa in New South Wales (NSW), the isotherms describe soil K behaviour on a catena with greater precision than measuring plant-available K. For this area, publicly available soil data mostly describe the upper 10 cm of analysed profiles, but typical crop rooting depth is much deeper (40-150cm). Agricultural soil testing is vital for farmers but has traditionally been expensive with a lag in data provision, meaning soil information is not readily available for 'just-in-time' monitoring. Use of the isotherm technique to evaluate K behaviour is a relatively inexpensive and timely approach that may address this issue and provide a level of detail otherwise not available. This research improves our understanding of K behaviour in an agricultural setting, using proximal sensing (Diffuse Reflectance Infrared Fourier Transformed (DRIFT) Vis-NIR spectroscopy) to measures secondary K-bearing clay minerals to illustrate the effect that secondary minerals have on soil K potential and Fe oxides to reflect on the soil structure. The K-bearing minerals are a source of K and they are associated with storage/release of K. Also, spectroscopy is used to map total K distribution in the soil. This new method is compared with the traditional method for mineral analysis, x-ray diffraction (XRF). Isotherms reveal that Fairview Farm soil preferentially adsorbs K from the soil solution, which is possible in heavy clay soils when K bearing secondary clay minerals are present. The exchange sites on K-bearing minerals must be filled before K accumulates in the soil solution, thus becoming plant available. All the landscape positions show preferential adsorption to some extent, but it decreases from the top of the hill to the bottom of the hill. Although this site has a small amount of plant-available K and only clusters of poorly crystalline K bearing secondary minerals, plants find it easy to extract K from the soil. The Crest plant available K is always at luxury levels, whereas the Mid-slope and Lower slope have decreasing amounts until the energy required to extract the plant available K becomes too much. i.e., K potential decreases too low. In this way, plant available K becomes a subsoil constraint, which is reflected in the uneven crop growth in the paddock.The soil overall is illite/kaolinite dominated, but geochemistry tells us that the formation of the secondary minerals is not dependent on the geology but rather it depends on what is in the soil solution. The top 80 cm of the soil has not evolved from the same geological origin as the soil below. Interstratification of illite with smectite makes it difficult to identify these two minerals as they are poorly crystallised. Farmers and their advisors should consider the mineralogy before deciding on how and when to apply K rich fertilizer.

Soil Constraints And Productivity

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Author : Nanthi Bolan
language : en
Publisher: CRC Press
Release Date : 2023-05-29

Soil Constraints And Productivity written by Nanthi Bolan and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-05-29 with Science categories.

Identifying, interpreting, and managing soil constraints are major challenges, especially when multiple constraints occur in the same soil at various depth zones. Although amelioration tools and strategies are available to manage some of these constraints, field adoption of these technologies is a major challenge to the farming community. Soil Constraints and Productivity helps in identifying and understanding soil constraints, focusing on management practices to alleviate problems associated with these restrictions, and their impacts on crop productivity. Soil Constraints and Productivity aims to: Describe various strategies suitable for mitigating soil constraints Provide data on cost-benefit analysis of managing soil constraints Provide case studies of managing soil constraints to increase productivity Soil is essential for the doubling of major grain production proposed to be necessary to avoid major food security collapses in the future. This book will be a key resource for soil and environmental scientists, farmers, students majoring in agricultural and environmental sciences, and crop consultants.

Subsoil Management Techniques

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Author : Bobby A. Stewart
language : en
Publisher: CRC Press
Release Date : 1994-10-12

Subsoil Management Techniques written by Bobby A. Stewart and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994-10-12 with Technology & Engineering categories.

The principles and practice of deep tillage techniques have often failed to provide long-term, sustainable improvements of the soil for crop production. The book reviews alternative approaches to overcoming subsoil problems. These approaches involve reduced disturbance of the soil, but still provide substantial and sustainable soil improvements. Chapters 1 through 4 discuss the use of minimum tillage, bed farming, mole drainage, and slotting to overcome adverse subsoil conditions. Chapter 5 examines the options available for management of subsoil acidity. The next chapter provides an understanding of the processes involved in stress transmission and compaction under farm trafficking. The last chapter explains the critical role of soil microorganisms in providing long-term biological stabilization and improvements of soil. This reference brings together the latest research information on these subsoil amelioration techniques.

Problem Soils

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Author : K C Manorama Thampatti
language : en
Publisher: CRC Press
Release Date : 2022-11-24

Problem Soils written by K C Manorama Thampatti and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-11-24 with Technology & Engineering categories.

This is a unique book that deals with the problem soils, their constraints and management in the Indian context. The book starts with the introduction on problem soils and the classification of these soils are included there under. In India, there is wide spread occurrence of soils with different types of constraints for crop production. Such soils are popularly called as “Problem Soils”. Cultivation in these soils is not so easy as several problems have to be tackled during cultivation. It may be either soil droughtiness or acidity or salinity etc. An attempt has been made in this book to cover most of the problematic soils in India. The classification of problem soils has been done based on the limitations they possess and the most dominant limitation is taken into consideration for grouping it under a particular class. Here five broader classes have been identified viz., soils with climatic problems; soils with physical problems; soils with chemical problems; soils with biological problems and soils with problems due to anthropogenic reasons. Note: Taylor and Francis does not sell or distribute the print editions of this title in India, Pakistan, Nepal, Bhutan, Bangladesh and Sri Lanka.

Diagnosis And Management Of Soil Constraints

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Author : Jim Kelly
language : en
Publisher:
Release Date : 2006

Diagnosis And Management Of Soil Constraints written by Jim Kelly and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Arid regions agriculture categories.

"The Grains Research and Development Corporation (GRDC) has identified subsoil contraints as a major barrier to production in the agricultural regions in Southern Australia. These constraints in the root-zone limit root and crop growth and/or function, reducing growth and yield." "This manual aims to increase growers' understanding and awareness of these problems" --introd.