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Tillage And Crop Rotation Effects On Selected Soil Properties And Wheat Yield In A Short Term Field Experiment In The Eastern Cape Province South Africa
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Book Synopsis Tillage and Crop Rotation Effects on Selected Soil Properties and Wheat Yield in a Short Term Field Experiment in the Eastern Cape Province, South Africa by : Mxolisi Mtyobile
Download or read book Tillage and Crop Rotation Effects on Selected Soil Properties and Wheat Yield in a Short Term Field Experiment in the Eastern Cape Province, South Africa written by Mxolisi Mtyobile and published by . This book was released on 2017 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Tillage and Rotation Experiments at Dickinson, Hettinger, and Williston, N. Dak by : Leroy Moomaw
Download or read book Tillage and Rotation Experiments at Dickinson, Hettinger, and Williston, N. Dak written by Leroy Moomaw and published by . This book was released on 1925 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pp. 21.
Book Synopsis Long-term Effect of Crop Rotation and Tillage on Soil Properties by :
Download or read book Long-term Effect of Crop Rotation and Tillage on Soil Properties written by and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Soils of South Africa by : Martin Fey
Download or read book Soils of South Africa written by Martin Fey and published by Cambridge University Press. This book was released on 2010-02-16 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soils of South Africa is the first book in seventy years that provides a comprehensive account of South African soils. The book arranges more than seventy soil forms into fourteen groups and then provides, for each group: • maps showing their distribution and abundance throughout South Africa • descriptions of morphological, chemical and physical properties • a detailed account of classification and its correlation with international systems • a discussion of soil genesis which includes a review of relevant research papers • appraisal of soil quality from a land use perspective as well as for its ecological significance • illustrative examples of soil profiles with analytical data and accompanying interpretations. There is also a fascinating account of the special relationship that exists between South African animals and soil environments. Soils of South Africa should interest students and researchers in the earth, environmental and biological sciences, as well as environmental practitioners, farmers, foresters and civil engineers.
Book Synopsis Rotation Tillage Experiments at the Lawton (Okla.) Field Station, 1917-1930 by : Walter M. Osborn
Download or read book Rotation Tillage Experiments at the Lawton (Okla.) Field Station, 1917-1930 written by Walter M. Osborn and published by . This book was released on 1932 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Short- and Medium-term Effects of Tillage Systems on Soil Properties and Organic Spring Wheat Performance by : Shuyao Wang
Download or read book Short- and Medium-term Effects of Tillage Systems on Soil Properties and Organic Spring Wheat Performance written by Shuyao Wang and published by . This book was released on 2014 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Tillage and Crop Rotation Affect Corn, Soybean, and Wheat Yields by : Michael Gerald Lund
Download or read book Tillage and Crop Rotation Affect Corn, Soybean, and Wheat Yields written by Michael Gerald Lund and published by . This book was released on 1992 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Long-term Impact of Tillage and Cropping Managements on Soil Hydro-physical Properties and Yield by : Amin Nouri Gharahassanlou
Download or read book Long-term Impact of Tillage and Cropping Managements on Soil Hydro-physical Properties and Yield written by Amin Nouri Gharahassanlou and published by . This book was released on 2017 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: Soil physical and hydraulic properties control the major soil functions related to the imbibition, transmission and retention of water, air, heat and nutrients. Adoption of no-tillage in Tennessee through the last decades has considerably decreased the fluvial soil losses. However, the long-term effect of no-tillage on soil hydro-physical properties and its interaction with companion practices such as cover crops and crop sequence has not been fully discovered. In this project, three long-term experiments located in West Tennessee Research and Education Center in Milan and Jackson, TN were studied in 2015 and 2016 for soil hydro-physical properties. The effect of 34 years of tillage, fertilization and cover crop, 15 years of crop rotation on no-tillage with winter fallow and 37 years of a range of tillage intensities and no-tillage with and without cover crop on soil physical properties were assessed. Relationship between soil physical properties were determined and by relating the soil physical properties to corn, cotton and soybean yield and long-term yield stability, the most effective cropping and tillage managements were identified. Long-term no-tillage substantially improved soil aggregation, water infiltration and transmission and cotton yield than conventional tillage. Effect of cover crops on measured soil physical properties were less evident than the effect of no-tillage. However, planting hairy vetch and wheat cover crops improved the soil aggregation and increased the water infiltration and transmission significantly compared with no cover crop. No-tillage planted with hairy vetch cover crop experienced significantly higher quasi-steady and cumulative infiltration compared with the other treatment combinations in both years. Cropping corn, cotton and soybean in double cropping sequences did not favor soil in improved physical quality than monoculture while existence of corn in cropping system either as continuous cropping or in sequence improved soil physical quality. Corn rotated with soybean and cotton increased yield and decreased the long-term variance in soybean yield. Under sub-humid climate of Tennessee with relatively high decomposition rate of organic matter, the magnitude of residue turnover and below-ground root activity was found to be key factors increasing the no-tillage potential for additional improvement in soil quality and yield.
Book Synopsis Tillage Practices and Nitrogen Rates Influenced Wheat and Sorghum Yield and Nitrogen Use Efficiency in Long-term Dryland Wheat-sorghum Rotation System by : Mosaed Abdullah Majrashi
Download or read book Tillage Practices and Nitrogen Rates Influenced Wheat and Sorghum Yield and Nitrogen Use Efficiency in Long-term Dryland Wheat-sorghum Rotation System written by Mosaed Abdullah Majrashi and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A major challenge for agronomists is developing cropping systems that exhibit superior performance across variable environmental conditions. Long-term field research trials provide a direct measure of the effect of environmental conditions within the context of treatment effects. Winter wheat (Triticum aestivum L.) is the most widely grown base crop in dryland systems of the semiarid central Great Plains, but grain yields are limited by nitrogen (N) and soil water availability. The goal of this research was to assess long-term cropping systems of winter wheat-grain sorghum-fallow in dryland. The focus was to determine the effect of three tillage practices and rates of N fertilization rates effects on the efficiency of the management system and grain yields for 2015-2018, and evaluate the yield stability for both crops in a 53-year-old crop rotation and fertility experiment. In the first study we evaluated the long-term effects of three different tillage practices and four N fertilizer rates on grain yield, protein content, and N use efficiency indices of winter wheat and grain sorghum in 2015-2018. The experiment was conducted on a long-term plot initiated in 1965 in Hays, KS as a split-split-plot arrangement of rotation, tillage, and N fertilizer treatments with four replications in a randomized complete block design. The main plots were the crop phase (winter wheat, grain sorghum, or fallow), sub-plots were three tillage treatments [conventional tillage (CT), reduced tillage (RT), and no-tillage (NT)]. The sub-sub-plots were four N rates (0, 22, 45, and 67 kg N ha−1) later modified in the 2015 growing season to 0, 45, 90, and 134 kg ha−1. Results showed tillage × N rate interaction had no significant (P = 0.608) effect on grain yield. Year × tillage and year × N rate had significant (P
Book Synopsis Effects of Reduced Tillage on (cash) Crop Yields, Soil Quality and Other Ecosystem Services by : Martine Trip
Download or read book Effects of Reduced Tillage on (cash) Crop Yields, Soil Quality and Other Ecosystem Services written by Martine Trip and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Decreasing soil quality, worsened by climate change-related weather extremes, is prompting the Dutch Ministry of Agriculture's aim for sustainable management of all agricultural soils by 2030. One proposed practice for this goal is reduced tillage, which offers potential benefits such as improved soil structure and reduced greenhouse gas emissions. However reduced tillage comes with potential drawbacks such as topsoil compaction and yield reduction. While global meta-analyses mainly focus on effects of reduced tillage in North and South American cash crops, like grains, maize and soy, this long-term Dutch farming systems experiment called BASIS is unique in its focus on Dutch small seeded, root and tuber crops. The BASIS experiment, established in 2009 by Wageningen University and Research in Lelystad, consists of three organic and two conventional fields with common Dutch crop rotations. In BASIS we experiment with three tillage systems: conventional tillage with mouldboard plough (CT), reduced tillage with sub-soiling (RTS), and reduced tillage without sub-soiling (RT). Reduced tillage with shallow ploughing was added (RT/SPL) later in the experiment. The experiment employs controlled traffic farming (CTF) and is a randomized complete block design with four replicates per tillage system and field. In the BASIS experiment a system approach is used; this allowed for the experiment to be optimized during the project period. Effects of reduced tillage on ecosystems services such as yield, yield quality and soil quality were investigated. Overall, reduced tillage systems showed comparable or higher marketable yield for most crops, except for fineseeded crops like carrots and onions. The Twinrotor tiller seems a viable option in reduced tillage systems to create a finer seedbed and reduce the yield gap of carrots between reduced and conventional tillage. The influence of extreme weather conditions on reduced tillage effects varied, with yields sometimes higher and sometimes lower compared to conventional tillage. Over time the differences in marketable yield between reduced and conventional tillage showed no increasing or decreasing trend. For yield quality, the difference between gross yield and marketable product, there were no significant differences nor discernible trends between the tillage systems; with the expedition of carrots which showed a lower yield quality under reduced tillage, with larger-sized and deformed carrots. This was likely caused by cover crop residue and soil aggregate size. The impact of reduced soil tillage on crop quality parameters such as sugar content (sugar beet) and thousand grain weight (cereal crops) showed no significant differences between the tillage systems. Bulk density showed no differences in the upper 0-10 cm layer, but significantly higher values were observed in the deeper 10-20 cm layer for reduced tillage. Soil moisture was generally higher for reduced tillage in the upper 0-10 cm layer, while conventional tillage exhibited higher moisture in the lower 10-20 cm layer. Penetration resistance was consistently greater for reduced tillage, particularly in the 10-30 cm layer. Despite these soil property differences, there was no substantial evidence of decreased yields or root limitations. The increased compaction under reduced tillage could potentially enhance soil bearing capacity. Reduced tillage leads to higher soil organic matter and carbon content in the upper 0-15 cm layer compared to conventional tillage. However, in lower layers no significant difference were found. Reduced tillage shows minimal impact on soil pH. Total nitrogen content is higher in the upper 0-15 cm layer for reduced tillage. Other nutrient availabilities are not strongly influenced by tillage systems. Mineral nitrogen levels in the soil are very low in this experiment and differences between tillage systems are small. Overall, reduced tillage increases soil organic matter, carbon, and nitrogen in the upper layer (0-15 cm), with a trend towards higher values in the 0-30 cm layer. To summarize, the BASIS experiment shows that reduced tillage is a viable option for most of the Dutch crops and indicates a trend towards improved soil quality.
Book Synopsis Integrated Soil Fertility Management in Africa by : Nteranya Sanginga
Download or read book Integrated Soil Fertility Management in Africa written by Nteranya Sanginga and published by CIAT. This book was released on 2009 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: Forward. A call for integrated soil fertility management in Africa. Introduction. ISFM and the African farmer. Part I. The principles of ISFM: ISFM as a strategic goal, Fertilizer management within ISFM, Agro-minerals in ISFM, Organic resource management, ISFM, soil biota and soil health. Part II. ISFM practices: ISFM products and fields practices, ISFM practice in drylands, ISFM practice in savannas and woodlands, ISFM practice in the humid forest zone, Conservation Agriculture. Part III. The process of implementing ISFM: soil fertility diagnosis, soil fertility management advice, Dissemination of ISFM technologies, Designing an ISFM adoption project, ISFM at farm and landscape scales. Part IV. The social dimensions of ISFM: The role of ISFM in gender empowerment, ISFM and household nutrition, Capacity building in ISFM, ISFM in the policy arena, Marketing support for ISFM, Advancing ISFM in Africa. Appendices: Mineral nutrient contents of some common organic resources.
Book Synopsis Properties and Management of Soils in the Tropics by : Pedro A. Sanchez
Download or read book Properties and Management of Soils in the Tropics written by Pedro A. Sanchez and published by Cambridge University Press. This book was released on 2019-01-10 with total page 685 pages. Available in PDF, EPUB and Kindle. Book excerpt: Long-awaited second edition of classic textbook, brought completely up to date, for courses on tropical soils, and reference for scientists and professionals.
Book Synopsis Influence of Long-Term Tillage and Crop Rotation Combinations on Crop Yields and Selected Soil Parameters For an Aeric Ochraquale Soil by : Ohio Agricultural Research and Development Center
Download or read book Influence of Long-Term Tillage and Crop Rotation Combinations on Crop Yields and Selected Soil Parameters For an Aeric Ochraquale Soil written by Ohio Agricultural Research and Development Center and published by . This book was released on 1977 with total page 75 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Tillage on Some Soil Physicochemical Properties and on Annually Cropped Spring Wheat Yields by : Armand Bauer
Download or read book Effect of Tillage on Some Soil Physicochemical Properties and on Annually Cropped Spring Wheat Yields written by Armand Bauer and published by . This book was released on 1978 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Tillage and Crop Rotation Effects on Soil Tilth by : K.K. Singh
Download or read book Tillage and Crop Rotation Effects on Soil Tilth written by K.K. Singh and published by . This book was released on 1991 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Influence of Long-Term Tillage and Crop Rotation Combinations on Crop Yields and Selected Soil Parameters by : Warren Albert Dick
Download or read book Influence of Long-Term Tillage and Crop Rotation Combinations on Crop Yields and Selected Soil Parameters written by Warren Albert Dick and published by . This book was released on 1986 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Influence of Long-term Tillage and Crop Rotation Combinations on Crop Yields and Selected Soil Parameters by :
Download or read book Influence of Long-term Tillage and Crop Rotation Combinations on Crop Yields and Selected Soil Parameters written by and published by . This book was released on 1986 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
