Download or read book The Effect of Three Conservation Tillage Systems on Corn Zea Mays L Growth and Productivity written by Ali M. Al-Darby and published by . This book was released on 1986 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tillage System and Planting Date Effects on Corn Zea Mays L and Soybean Glycine Max L Yield written by Mario Perez-Bidegain and published by . This book was released on 2004 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although tillage systems produce different soil conditions, which result in different ideal planting dates, and crops respond to planting date, most of tillage research is conducted based on a calendar date. If a tillage system by planting date interaction exists, most of the planting date recommendations based on calendar date research could change. Different authors have modified surface residue distribution in an attempt to achieve optimal soil conditions for crop growth in the row zone while maintaining optimum soil conservation conditions in the mulched interrow zone. A reasonable goal for soil management involves identifying the level of soil and residue disturbance necessary to optimize soil environmental conditions for the corn plant and residue cover for soil conservation. In order to design a tillage system that produces a residue-free band-width based on site-specific soil properties and crop needs, the use of a model to capture the effect of surface residue management, soil non-uniformities (i.e., row zone tillage), and tillage is necessary. Considering a potential tillage by planting date interaction and site-specific strip tillage opportunities, this thesis has the following objectives. The first objective is to test the performance of strip tillage, no tillage, and conventional tillage when each system is planted on the day that optimum soil temperature and water conditions for planting are reached for each system. The second objective is to conduct a soil temperature sensitivity analysis to residue-free band-width, and tillage depth with strip tillage using a model that couples water and heat transport in non-uniform soils. In a two-year study on a poorly drained soil tillage system, effects on corn yield were not detected when preestablished soil temperature and water content criteria were used to determine the day of planting each system. On the other hand, planting date has an effect on corn yield. A tillage system by planting date interaction was detected for soybean yield in one of two years, when drought conditions existed during the second half of July and August. Soil temperature, soil water content, and matric potential were most sensitive to changes in residue-free band-width at 0.05-m in both soils studied.

Download or read book Modelling Tillage Effects on Soil Physical Properties and Maize Zea Mays L Development and Growth written by Frédéric Antoine Dadoun and published by . This book was released on 1993 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Conservation Tillage Chemical Input and Manure History in Regulating Corn Zea Mays L and Soybean Glycine Max L Merr Production and Fate of Nitrogen in Soil written by Chuanguo Xu and published by . This book was released on 1994 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Corn Zea Mays L Response to Nitrogen Application written by Eddie Ray Watson and published by . This book was released on 1986 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comparison Of Tillage and No Tilalge Management Systems as Related to Selected Agronomic Factors Affecting Corn Zea Mays L Yields written by Freddy M. Amores and published by INIAP Archivo Historico. This book was released on with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tillage Systems in the Tropics written by R. Lal and published by Food & Agriculture Org.. This book was released on 1995 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this Bulletin are to collate up-to-date information on soil tillage requirements for soils in the tropics; to assess the impacts of different ways of tillage on soil, environment and crop productivity; and to outline criteria for developing environment-friendly and economically viable tillage techniques for sustainable use of soil and water resources

Download or read book Effects of Tillage and Herbicides on Corn Zea Mays L Production Net Return Weeds and Soil Properties written by Jun Zhang and published by . This book was released on 1992 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Soil Science written by and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of soils has taken on increased importance because a rapidly expanding population is placing demands on the soil never before experi enced. This has led to an increase in land degradation. Land degradation is one of the most severe problems facing mankind. Volume 11 of Advances in Soil Science was devoted entirely to this critical area of soil science. The editors of that volume, R. Lal and B.A. Stewart, defined soil degradation as the decline in soil quality caused by its misuse by humans. They further stated that soil degradation is a major concern for at least two reasons. First, it undermines the productive capacity of an ecosystem. Second, it affects global climate through alterations in water and energy balances and disruptions in cycles of carbon, nitrogen, sulfur, and other elements. Through its impact on agricultural productivity and environment, soil deg radation leads to political and social instability, enhanced rate of deforesta tion, intensive use of marginal and fragile lands, accelerated runoff and soil erosion, pollution of natural waters, and emission of greenhouse gases into the atmosphere. In fact, soil degradation affects the very fabric of mankind.

Download or read book A Systems Approach to Conservation Tillage written by Frank M. D'Itri and published by CRC Press. This book was released on 2018-05-04 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes concepts, value judgments and background information on the expanding conservation tillage practices in the United States and provides a technical appraisal of the state of the art. Still, much remains to be learned about the agronomic, agricultural engineering and environmental parameters; and it is hoped that the inormation herein presented will stimulate further research toward a more integrated apporach to conversation tillage practices.

Download or read book Comparative Influence of Tillage Systems and Nutrient Timing on the Soil Environment and Crop Response in Iowa Soils written by Mark Allen Licht and published by . This book was released on 2003 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tillage systems can affect soil productivity, crop N availability and use efficiency, and seedbed conditions (soil temperature, moisture, and penetration resistance). The challenges associated with some tillage systems, namely conventional tillage and no-tillage, have prompted this study to (i) evaluate the effects of strip-tillage on corn (Zea mays L.) productivity as compared to conventional tillage and no-tillage (ii) identify the effect of strip-tillage and N timing on the N availability and use efficiency (iii) determine the impact of strip-tillage on soil moisture, temperature, and penetration resistance. The study was conducted at two sites in 2001 and 2002. One site was near Ames, Iowa where the soils were Nicollet (Aquic Hapludolls) and Webster (Typic Haplaquolls). The second site was near Nashua, Iowa where the soils were Kenyon (Typic Hapludolls) and Floyd (Aquic Hapludolls). The impacts of tillage treatments on crop response were determined by measuring corn emergence, dry matter, plant N uptake, and grain yield. Residual soil NO3-N, NO3-N movement, and water use efficiency, along with soil temperature and soil penetration resistance, were estimated for different tillage systems. Results of this study suggest strip-tillage offers no significant advantages in improving corn production over no-tillage or conventional tillage. In this study, strip-tillage had a slight advantage early in the growing season in improving corn emergence due to improvement of soil temperature over no-tillage by 1.4-1.9°C, but this advantage did not significantly increase yields. There was no significant difference in soil moisture content between all tillage systems at any depth, but generally strip-tillage showed greater water content than conventional tillage and a similar water content to no-tillage at the lower soil depths. Strip-tillage had no significant advantages in improving plant N uptake, water use efficiency, or reducing N leaching over no-tillage regardless of the timing of tillage implementation and N fertilizer application. Soil penetration resistance of strip-tillage was often comparable with no-tillage, but greater than conventional tillage at the 0-20 cm depth. Penetration resistance and soil moisture for all treatments were inversely related throughout the soil profile, where the differences were most pronounced at the 30 and 60 cm depths.

Download or read book Conservation Tillage Effects on Soil Compaction and Corn Root Growth written by Ruth E. Hilfiker and published by . This book was released on 1986 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effects of Herbicide Treatment and Tillage on Soil Moisture and Yield of Corn Zea Mays L written by Richard Stephen Malek and published by . This book was released on 1988 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reduced Tillage Field Corn Zea Mays L Production in Manitoba written by David Alexander Wall and published by . This book was released on 1982 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Field studies were conducted on field corn (Zea mays L.) under various conventional and reduced tillage cropping systems and straw management practices to determine the effect on soil physical properties, crop growth, development and yield. The performance of eight corn hybrids was evaluated under conventional and zero tillage to study the adaptability of hybrids to zero tillage cropping practices. Corn under zero tillage exhibited delays in emergence, silking and maturity, reduced plant populations, dry matter, plant height and grain yields. The negative effects of zero tillage on crop performance were attributed to poorer seed placement and lower soil temperatures. The lower soil temperatures and higher soil water content which occurred under zero tillage were attributed to the presence of a barley straw mulch on the soil surface. The performance of the corn grown under conventional tillage, in which the seedbed had been prepared the previous fall, was superior to all other treatments examined. The superior performance of the fall tillage treatment was considered to have resulted from improved seed placement and greater soil moisture. The removal of the barley straw mulch from the soil surface promoted earlier silking and maturity, increased plant heights, populations and grain yields in corn. The removal of the straw mulch resulted in increased soil temperatures relative to where the straw mulch had been retained. The eight hybrids examined exhibited similar responses to zero tillage during the growing season. At harvest, however, the hybrids exhibited a differential yield response to tillage. Four hybrids; Pioneer 3995, Pride R102, Pride R108 and Pickseed 2322 wee not affected by zero tillage, while the remaining hybrids; Pickseed 2111, Asgrow RX22, Pioneer 3992 and Funks G4065 exhibited reduced grain yields under the zero tillage treatment.

Download or read book COMPARISON OF TILLAGE AND NO TILLAGE MANAGEMENT SYSTEMS AS RELATED TO SELECTED AGRONOMIC FACTORS AFFECTING CORN ZEA MAYS L YIELDS written by Amores Freddy M. and published by INIAP Archivo Historico. This book was released on 1982 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Tillage on Soil Physical Properties and the Availability of Nitrogen Phosphorus and Potassium to Corn Zea Mays L written by John Frazeur Moncrief and published by . This book was released on 1981 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Soil Health and Intensification of Agroecosystems written by Mahdi M. Al-Kaisi and published by Academic Press. This book was released on 2017-03-15 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil Health and Intensification of Agroecosystems examines the climate, environmental, and human effects on agroecosystems and how the existing paradigms must be revised in order to establish sustainable production. The increased demand for food and fuel exerts tremendous stress on all aspects of natural resources and the environment to satisfy an ever increasing world population, which includes the use of agriculture products for energy and other uses in addition to human and animal food. The book presents options for ecological systems that mimic the natural diversity of the ecosystem and can have significant effect as the world faces a rapidly changing and volatile climate. The book explores the introduction of sustainable agroecosystems that promote biodiversity, sustain soil health, and enhance food production as ways to help mitigate some of these adverse effects. New agroecosystems will help define a resilient system that can potentially absorb some of the extreme shifts in climate. Changing the existing cropping system paradigm to utilize natural system attributes by promoting biodiversity within production agricultural systems, such as the integration of polycultures, will also enhance ecological resiliency and will likely increase carbon sequestration. Focuses on the intensification and integration of agroecosystem and soil resiliency by presenting suggested modifications of the current cropping system paradigm Examines climate, environment, and human effects on agroecosystems Explores in depth the wide range of intercalated soil and plant interactions as they influence soil sustainability and, in particular, soil quality Presents options for ecological systems that mimic the natural diversity of the ecosystem and can have significant effect as the world faces a rapidly changing and volatile climate