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Effects Of Nitrogen Application Practices On Tart Cherry Tree Response And Nitrate Movement Under Trickle Irrigation
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Book Synopsis Effects of Nitrogen Application Practices on Tart Cherry Tree Response and Nitrate Movement Under Trickle Irrigation by : Barry Richard Hahn
Download or read book Effects of Nitrogen Application Practices on Tart Cherry Tree Response and Nitrate Movement Under Trickle Irrigation written by Barry Richard Hahn and published by . This book was released on 1986 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Masters Abstracts International by :
Download or read book Masters Abstracts International written by and published by . This book was released on 1987 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :American Society of Agricultural Engineers Publisher :American Society of Agricultural & Biological Engineers ISBN 13 : Total Pages :1012 pages Book Rating :4.:/5 (89 download)
Book Synopsis Microirrigation for a Changing World by : American Society of Agricultural Engineers
Download or read book Microirrigation for a Changing World written by American Society of Agricultural Engineers and published by American Society of Agricultural & Biological Engineers. This book was released on 1995 with total page 1012 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Visions of the Future written by and published by American Society of Agricultural & Biological Engineers. This book was released on 1990 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comparative Nitrogen Application Methods for Tart Cherry Trees by : R.H. Mohtar
Download or read book Comparative Nitrogen Application Methods for Tart Cherry Trees written by R.H. Mohtar and published by . This book was released on 1989 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Drip Irrigation and Nitrogen Application Rates on Soil Nitrogen and Potassium Movement and Nitrogen Uptake and Accumulation in Vegetable Crops by : Kamal Abdel-Kader Mahmoud
Download or read book Effect of Drip Irrigation and Nitrogen Application Rates on Soil Nitrogen and Potassium Movement and Nitrogen Uptake and Accumulation in Vegetable Crops written by Kamal Abdel-Kader Mahmoud and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: Water movement is a major process that affects solute transport in the soil profile under Florida sandy soils conditions. Therefore, understanding thTKRe impact of current irrigation and N fertilization practices will have on leaching of water and nutrients below the crop root zone, and on crop yield is important for developing best management practices (BMPs). The BMPs should aim at minimizing water and nutrients leaching below the root zone while optimizing crop yield. Two field experiments were conducted in Spring 2002 in a sandy soil cropped with bell pepper and watermelon crops at North Florida Research and Education Center (NFREC) near Live Oak, Florida, to estimate the potential of leaching of N and K from the soil profile using calculated water fluxes over time, to measure biomass accumulation, N accumulation, and crop yield as affected by irrigation and N rates. The main goal of the study was to select BMPs that reduce nutrient leaching below the root zone from vegetable crops grown on plastic mulched beds under drip fertigation. The experimental design consisted of three irrigation treatments: 66, 100,
Book Synopsis Growing Sour Cherries by : H. W. Fogle
Download or read book Growing Sour Cherries written by H. W. Fogle and published by . This book was released on 1974 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Agricultural Engineering Index written by and published by . This book was released on 1991 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of the Method of Irrigation and Fertilizer Application on the Movement of Nitrates in the Soil by : Lavoir A. Banks
Download or read book The Effect of the Method of Irrigation and Fertilizer Application on the Movement of Nitrates in the Soil written by Lavoir A. Banks and published by . This book was released on 1960 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effects of Certain Fertilizer Nutrients Used as Starter Solutions when Applied to Montmorency Cherry Trees at Planting Time by : George Alvin McManus
Download or read book The Effects of Certain Fertilizer Nutrients Used as Starter Solutions when Applied to Montmorency Cherry Trees at Planting Time written by George Alvin McManus and published by . This book was released on 1953 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nitrate and Pesticide Transport Under Pear Production in Clay and Sandy Soil by : Weidong Cao
Download or read book Nitrate and Pesticide Transport Under Pear Production in Clay and Sandy Soil written by Weidong Cao and published by . This book was released on 1994 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt: Groundwater contamination on irrigated land is of concern in this nation and around the world. In order to reduce the potential of groundwater contamination by agricultural practices such as irrigation, fertilizer and pesticide application, vadose-zone monitoring and sampling are needed. The main objective of this study was to evaluate impacts of current irrigation treatments and soil structures on the migration of pollutants to groundwater. Passive CAPillary wick pan Samplers (PCAPS) and suction cups were installed in two cracking clays and one sandy soil under the pear tree root zone. PCAPS and suction cups were used to collect nitrate-nitrogen and tracer samples. Tracers were applied to track the spatial and temporal patterns of compounds that mimic nitrate-nitrogen and pesticide movement. The observed magnitude of water leaching over 3 months differed between irrigation methods and soil structures and decreased in this order: flooding over 3 months in clay soil (22.8 cm)> micro-sprinkler in clay soil (16.1 cm)> over-head sprinkler in sandy soil (4.1 cm). Leaching patterns were varied spatially; soil structures, irrigation methods, preferential flow, and high water table may have been responsible for the spatial variation of leaching. Mass recovery of all three tracers, including bromide, blue dye, and rhodamine had the same decreasing order: flooding in clay soil> micro-sprinkler in clay soil> over-head sprinkler in sandy soil. Average blue dye and rhodamine concentrations had the following order: flooding in clay soil> micro-sprinkler in clay> over-head sprinkler in sandy soil. Since blue dye and rhodamine have similar properties to some moderately adsorbed pesticides, we may infer that the risk of pesticide movement in three sites should also decrease in this order. Presumably pesticide movement in clay soil would have been more pronounced for flooding than sprinkler irrigation. On the annual/seasonal basis, the total mass of nitrate-nitrogen leaching differed between irrigation methods and soil structures and decreased in the following order: over-head sprinkler in sandy soil> flooding in clay soil> micro-sprinkler in clay soil. The annual average nitrate-nitrogen concentration observed under over-head sprinkler in sandy soil was 15 mg/l over the maximum allowed concentration level (10 mg/l) by the EPA while seasonal nitrate-nitrogen concentration was low in clay soil under current irrigation practices. Strong evidence suggested the occurrence of preferential flow in this study. Preferential flow may contribute to high water leachate, nitrate and pesticide migration. High correlation coefficients between paired PCAPS indicated that PCAPS have similar responses to water and solute leaching. Several improvements in PCAPS are needed to obtain representative samples under severe flooding conditions. Limited data suggested that ultra-low rate irrigation devices could reduce the water leaching and the potential of pollutant migration to the groundwater because ultra-low rate application devices minimize the soil macropore flow.
Book Synopsis Irrigation and Nitrogen Effect on Yield, Nitrogen and Boron Uptake and Nitrate Movement by : Rimon Naeem Qubrosi
Download or read book Irrigation and Nitrogen Effect on Yield, Nitrogen and Boron Uptake and Nitrate Movement written by Rimon Naeem Qubrosi and published by . This book was released on 1990 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1982 with total page 2134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Influence of Irrigation Practices on Nitrate-nitrogen Leached from Container-grown Ornamentals by : Donna Crabtree Fare
Download or read book The Influence of Irrigation Practices on Nitrate-nitrogen Leached from Container-grown Ornamentals written by Donna Crabtree Fare and published by . This book was released on 1993 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Validation of Tissue Nutrient Status for Tart Cherry (Prunus Cerasus) and Peach (Prunus Persica) in Utah by : Emily Tsai
Download or read book Validation of Tissue Nutrient Status for Tart Cherry (Prunus Cerasus) and Peach (Prunus Persica) in Utah written by Emily Tsai and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Nutrient concentrations in plant tissues are directly correlated with the nutritional status and productivity of fruit trees. Plant tissue testing is one of the most effective and accurate methods to determine nutritional status of perennial plants. Tissue test analyses were performed on tart cherry (Prunus cerasus) and peach (Prunus persica) leaves to validate tissue sufficiency levels used in Utah and to determine optimal timing of tissue sampling for prediction of harvest nutrient status, focusing on phosphorus (P), potassium (K), calcium (Ca), iron (Fe), and zinc (Zn). Sufficiency limits that were adopted in Utah were developed in the 1960s from research data accumulated from the primary fruit growing regions in the United States. Limited research has been conducted under Utah growing conditions. Tissue nutrient concentrations over time correlated well with current sufficiency limits and observed nutrient deficiencies in the field. Tissue concentrations of P, K, Fe, and Zn were found to be chronically low in Utah orchards. Plant tissue data demonstrates that mid-season sampling can predict nutrient status at harvest. Mid-season sampling also allows time for corrective adjustments to maintain sufficiency levels and reach optimal fruit production. Nutrient management practices are commonly applied annually to increase yield, fruit quality, and overall health of an orchard. Yield was measured on previously treated tart cherry orchards to determine residual effect on tree nutrient status. Orchards were treated 2 to 3 years prior with rate-response formulations of P and K; one has since adopted recommended fertilizer rates for optimizing tart cherry production in Utah and the other continued with their less aggressive management practices. The less aggressively managed orchard showed trends across treatments, but differences were not significant. Annual fertilizer applications may not immediately show effect during year of application, but long term management is essential for overall productivity of orchards.
Download or read book Agrindex written by and published by . This book was released on 1992 with total page 820 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bibliography of Agriculture with Subject Index by :
Download or read book Bibliography of Agriculture with Subject Index written by and published by . This book was released on 1982 with total page 1058 pages. Available in PDF, EPUB and Kindle. Book excerpt:
