The Effects of Potassium, Magnesium and Sulfur Fertilization on Soil Nutrient Changes PDF Download

Author: Khlaid H. Akkari
Publisher:
ISBN:
Category :
Languages : en
Pages : 150

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Author: Samuel L. Tisdale
Publisher: MacMillan Publishing Company
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 708

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Book Description
Introduction: Fertilizers in a changing world; Soil fertility: past and present; Growth and the factors affecting it; Elements required in plant nutrition; Basic soil-plant relationships; Soil and fertilizer nitrogen; Soil and fertilizer phosphorus; Soil and fertilizer potassium, magnesium, calcium and sodium; Sulfur and microelements in soils and fertilizers; Manufacture of nitrogen, phosphorius and potassium fertilizers; The manufacture and properties of mixed fertilizers; Liming; Soil fertility evaluation; Fundamentals of fertilizer application; Cropping systems and soil management; Economics and efficient use of water; Attacking soil fertility problems.

Author: Charles Ernest Millar
Publisher:
ISBN: 9788176221139
Category : Fertilizers
Languages : en
Pages : 0

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Book Description
The Book Is Concerned Primarily With The Interrelationships Of Soils And Growing Plants. It Has Been Prepared As A Textbook For Students Taking A Course In Soil Fertility And As A Reference Book For Students In Soil Management Courses. An Effort Has Been Made To Avoid Too Much Applied Material, Which Would Be Included In Courses Dealing Specifically With Soil Management Practices. Rather It Has Been The Object To Deal With Fundamental Principles That Can Be Applied To Crop Production Problems When Local Conditions Are Taken Into Consideration. Author Have Tried Never To Lose Sight Of The Practical Problems Of Soil Management And Crop Growth. An Appreciable Amount Of Data Has Been Compiled Which Is Hoped Will Be Useful As Reference Material. Considerable Attention Has Been Given To Results Of Field Experiments. Well Illustrated And An Exhaustive Subject Index Are Other Attractions Of The Book. Contents Chapter 1: The Development Of Agriculture, Ancient Agriculture, Roman Agriculture, Farming After The Fall Of Rome, Beginning Of Scientific Agriculture, Early Chemistry And Its Application To Plants; Chapter 2: Essentials For Plant Growth, Soil Fertility Vs. Productivity, Temperature And Growth, Light Requirement Of Plants, Water And The Growth Of Plants, The Plant And The Atmosphere, Nutrient Requirement Of Plants; Chapter 3: The Soil Solution And Nutrient Absorption By Plants, The Soil Solution, The Nutrient Intake Of Plants, Factors Affecting Nutrient Absorption; Chapter 4: Colloids And Soil Productivity, The Colloidal Content Of Soils, Constituents Of Soil Colloids, The Clay Minerals, Processes Of Ion Adsorption And Exchange, Ion Fixation And Soil Productivity; Chapter 5: Soil Reaction And Liming, Causes And Nature Of Soil Acidity, Development Of Saline And Alkali Soils, Determination And Expression Of Soil Reaction, Soil Reaction And Plant Growth, Changing The Reaction Of Soils; Chapter 6: Soil Organic Matter, Nature Of Materials Which Contribute To Soil Organic Matter, Chemical, Biological And Physical Properties Of Organic Fraction In Soils, Additions And Losses Of Soil Organic Matter, Chapter 7: Nitrogen And Crop Production, Nitrogen Requirements Of Plants, Nitrogen Content Of Soils, Loss Of Nitrogen From The Soils, Additions Of Nitrogen To The Soil, Nitrogen Fertilizers; Chapter 8: Phosphorus, Phosphorus Content Of Soils, Removal Of Phosphorus From The Soil, Return And Addition Of Phosophorus To The Soil, Phosphorus Fertilizers; Chapter 9: Potassium, Potassium Content Of Soils, Removal Of Potassium From The Soil, Addition And Return Of Potassium To The Soil, Potassium Fertilizers; Chapter 10: Calcium And Magnesium, Calcium And The Soil, Relationship Of Calcium To Plant Growth, Quantities And Reactions Of Magnesium In Soils, Magnesium And The Growth Of Plants; Chapter 11: Sulfur, The Sulfur Content Of Soils, Additions Of Sulfur To Soils, Removal Of Sulfur In Crops And By Leaching, Changes Which Sulfur Undergoes In Soils And Effect Of Sulfates On Soil Properties, Forms And Functions Of Sulfur In Plants, The Need For Sulfur Applications In Crop Production; Chapter 12: Micro And Some Non-Essential Nutrients, Manganese, Copper, Boron, Zinc, Molybdenum, Sodium, Silicon, Other Elements; Chapter 13: Soil Deficiencies And Determination Of Nutrient Needs Of Crops, Meaning Of Available Plant Nutrients, Early Efforts To Determine Supplies Of Available Nutrients, Rapid Soil-Testing Methods, Plant Analysis And Tissue Testing, Nutrient-Deficiency Symptoms In Plants, Plant-Growth Methods, Growth Of Microorganisms As An Indicator Of Soil-Nutrient Supply, Mitscherlich S Theory And Present-Day Agrobiology; Chapter 14: Activities Of Soil Organisms That Affect Productivity, Improvement In Soil Physical Condition By Organisms, Chemical Changes In Soil Constituents Produced By Organisms, Additions Of Nitrogen To Soils Through Biological Fixation; Chapter 15: Green Manures, Crop Residues, And Composts, Green Crops For Soil Protection And Improvement, Crop Residues And Sods, Composts And Municipal Wastes As Fertilizers And Soil Amendments; Chapter 16: Animal Manures, Regional Fertilizer Use And Nutrient Content Of Manure, Production And Composition Of Manure, Recovery In Manure Of Nutrients In Feed, Handling And Conservation Of Manure, Manure And Crop Production; Chapter 17: Contribution Of Commercial Fertilizers To Soil Productivity, Production And Use Of Fertilizers In The United States, Fertilizer Application For Different Crops, Returns From Application Of Fertilizer; Chapter 18: Rotations And Farming Systems, Cash-Crops Production The In Central West, Crop Rotations In Northeastern United States And Canada, Southern Cropping Systems, Cropping Systems Used In Dryland Farming, Rotations On Irrigated Land, Cash-Crop Vs. Livestock Farming, Limitation In Rotation Benefits; Chapter 19: A Summary Of Old Field Experiments, The Rothamsted Experiment Station, Field Studies In Illinois, Fertilizer Experiments In Pennsylvania, The Ohio Experimental Farms, Missouri S Sanborn Field, The Rhode Island Rotation Tests, Alabama S Old Rotation, Cylinder Studies In New Jersey, Washington S Wheat Cultural Experiments.

Author: Samuel L. Tisdale
Publisher: MacMillan Publishing Company
ISBN:
Category : Business & Economics
Languages : en
Pages : 776

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Book Description
Fertilizers in a changing world. Soil fertility - past and present. Growth and the factors affecting it. Elements required in plant nutrition. Basic soil-plant relationships. Soil and fertilizer: phosphorus, potassium, sulfur, calcium, and magnesium. Micronutrients and other beneficial elements in soils and fertilizers. Fertilizer manufacture. Soil acidity and liming. Soil fertility evaluation. Fundamentals of fertilizer application. Cropping systems and soil management. Ecomomics of plant-nutrient use. Fertilizers and efficient use of water. Interaction of plant nutrients in a high-yield agriculture.

Author: Merle Tränkner
Publisher: Cuvillier Verlag
ISBN: 3736985363
Category : Science
Languages : en
Pages : 134

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The world’s population reached 7.3 billion in 2015 and according to the United Nations, the world’s population will continue to grow by 1.18 % per year, projected to reach 8.5 billion in 2030 and 9.7 billion in 2050 (United Nations, 2015). Consequently, global demand for food is steadily rising and exerts a pressure on the need for more efficient crop production. However, efficient crop production is hampered by biotic and abiotic stress factors, such as drought. Drought poses the most important limitation to crop productivity in the world (Lauer et al. 2012) and increases in the frequency and intensity of drought events are predicted (Pachauri and Meyer 2014).

Author: T. Scott Murrell
Publisher: Springer
ISBN: 9783030591991
Category : Agriculture
Languages : en
Pages : 476

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Book Description
This open access book highlights concepts discussed at two international conferences that brought together world-renowned scientists to advance the science of potassium (K) recommendations for crops. There was general agreement that the potassium recommendations currently in general use are oversimplified, outdated, and jeopardize soil, plant, and human health. Accordingly, this book puts forward a significantly expanded K cycle that more accurately depicts K inputs, losses and transformations in soils. This new cycle serves as both the conceptual basis for the scientific discussions in this book and a framework upon which to build future improvements. Previously used approaches are critically reviewed and assessed, not only for their relevance to future enhancements, but also for their use as metrics of sustainability. An initial effort is made to link K nutrition in crops and K nutrition in humans. The book offers an invaluable asset for graduate students, educators, industry scientists, data scientists, and advanced agronomists.

Author: Y.P. Abrol
Publisher: Springer Science & Business Media
ISBN: 9401702896
Category : Science
Languages : en
Pages : 424

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Book Description
Sulphur (S) plays a pivotal role in various plant growth and development processes being a constituent of sulphur-containing amino acids, cysteine and methionine, and other metabolites viz., glutathione and phytochelatins, co-factor of enzymes which contribute to stress repair and amelioration of heavy metal toxicity. Besides, a number of S-containing components are biologically active and, thus, a source for use as medicinal value. The basic global issue before the agricultural scientist and world community is to evolve cultivars and develop methodologies for efficient use of inputs to enhance agricultural productivity. This is particularly true of the developing countries which are going to see maximum rise in population with changing food demands and declining availability of land. Amongst the inputs, nutrients play a crucial role. The major requirement is for N, P and K followed by several micro-nutrients. In this context reports of world-wide S deficiency in the agricultural systems are relevant. The reasons are many. Broadly speaking reduction inS emission, use of S-free N, P and K fertilizers and higher biomass production contributed the maximum. Despite the need for sulphur as an essential plant nutrient and the substantial returns expected from its use, very little attention has been given to fill the gap between supply and demand of S.

Author: Ulysses S. Jones
Publisher: Reston
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 392

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Author: A. E. Johnston
Publisher:
ISBN: 9780853102502
Category : Magnesium fertilizers
Languages : en
Pages : 40

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Author: Allen V. Barker
Publisher: CRC Press
ISBN: 1420014870
Category : Science
Languages : en
Pages : 662

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Book Description
The burgeoning demand on the world food supply, coupled with concern over the use of chemical fertilizers, has led to an accelerated interest in the practice of precision agriculture. This practice involves the careful control and monitoring of plant nutrition to maximize the rate of growth and yield of crops, as well as their nutritional value.