scholarly journals Conversions of parts per million on soil test reports to pounds per acre

EDIS ◽  
2013 ◽  
Vol 2013 (10) ◽  
Author(s):  
Guodong Liu ◽  
Yuncong Li ◽  
Aparna Gazula
Keyword(s):  
Water Management ◽  
Crop Production ◽  
Nutrient Management ◽  
Soil Testing ◽  
Soil Test ◽  
Vegetable Production ◽  
Fact Sheet ◽  
Conversion Method ◽  
Simple Conversion

December 18th, 2013 Soil testing and the resulting fertilization recommendations are critical for appropriate nutrient management in commercial vegetable production, but growers and soil experts sometimes speak different languages. This 8-page fact sheet provides a simple conversion method for crop consultants, crop advisors, growers, students, and researchers who are interested in nutrient and water management of crop production. Written by Guodong Liu, Yuncong Li, and Aparna Gazula, and published by the UF Department of Horticultural Sciences, August 2013. http://edis.ifas.ufl.edu/hs1229

IFAS Standardized Nutrient Recommendations for Vegetable Crop Production in Florida

EDIS ◽  
2017 ◽  
Vol 2017 (6) ◽  
Author(s):  
Rao S. Mylavarapu ◽  
George J. Hochmuth ◽  
Guodong Liu
Keyword(s):  
Crop Production ◽  
Soil Testing ◽  
Soil Test ◽  
Vegetable Production ◽  
Vegetable Crops ◽  
Basic Information ◽  
Vegetable Crop ◽  
Testing Laboratory ◽  
Additional Information ◽  
Agronomic Crops

This publication presents the fertilization recommendations for vegetable crops based on soil tests performed by the IFAS Extension Soil Testing Laboratory (ESTL). It contains the basic information from which ESTL soil-test reports and fertilization recommendations are generated. Additional information on nutrient recommendations is presented in the Vegetable Production Handbook of Florida, 2017-2018. Similarly, IFAS Standardized Nutrient Recommendations for Agronomic Crops can be found in SL129 (Mylavarapu, 2015).  

scholarly journals Performance Evaluation of Artificial Intelligence on Soil Property Detection

2018 ◽  
Vol 4 (10) ◽  
pp. 5
Author(s):  
Smriti Singhatiya ◽  
Dr. Shivnath Ghosh
Keyword(s):  
Artificial Intelligence ◽  
Precision Agriculture ◽  
Crop Production ◽  
Nutrient Status ◽  
Soil Testing ◽  
Support Vector ◽  
Soil Test ◽  
New Era ◽  
Agriculture Soil ◽  
Historical Role

Now-a-days there is a need to study the nutrient status in lower horizons of the soil. Soil testing has played historical role in evaluating soil fertility maintenance and in sustainable agriculture. Soil testing shall also play its crucial role in precision agriculture. At present there is a need to develop basic inventory as per soil test basis and necessary information has to be built into the system for translating the results of soil test to achieve the crop production goal in new era. To achieve this goal artificial intelligence approach is used for predicting the soil properties.  In this paper for analysing these properties support vector regression (SVR), ensembled regression (ER) and neural network (NN) are used. The performance is evaluated with respect to MSE and RMSE and it is observed that ER outperforms better with respect to SVR and NN.

scholarly journals Producer Soil Test Information Sheet

EDIS ◽  
2009 ◽  
Vol 2009 (2) ◽  
Author(s):  
Rao Mylavarapu ◽  
William D'Angelo ◽  
Nancy Wilkinson
Keyword(s):  
Soil Testing ◽  
Soil Test ◽  
Information Sheet ◽  
Testing Laboratory ◽  
Test Form ◽  
Fact Sheet ◽  
Test Information ◽  
Soil And Water

Revised! SL-135, a 2-page illustrated fact sheet by Rao S. Mylavarapu, William d'Angelo, and Nancy Wilkinson, is the Producer Soil Test Form used by the UF/IFAS Extension Soil Testing Laboratory. The sheet gives details about collecting samples and testing fees. Published by the UF Department of Soil and Water Sciences, February 2009. SL135/SS186: Producer Soil Test Form (ufl.edu)

scholarly journals Cranberry Nutrient Management in Southeastern Massachusetts: Balancing Crop Production Needs and Water Quality

2015 ◽  
Vol 25 (4) ◽  
pp. 471-476 ◽  
Author(s):  
Carolyn DeMoranville
Keyword(s):  
Water Management ◽  
Crop Production ◽  
Nutrient Management ◽  
Water Source ◽  
Nutrient Elements ◽  
Application Rates ◽  
Site Variation ◽  
Primary Focus ◽  
Winter Flooding ◽  
Long Channel

The american cranberry (Vaccinium macrocarpon) is a wetland plant native to North America. The plant is adapted to sandy, nutrient-poor, low pH soils and thus, like blueberry (Vaccinium sp.), its nutritional requirements are low compared with many other perennial fruit crops. Research conducted over the past 30 years has defined the annual requirements for nitrogen [N (20–60 lb/acre)], phosphorus [P (<20 lb/acre)], and potassium (40–120 lb/acre) based on tissue testing, plant growth demands, potential for remobilization, and determination of removal in the crop. These three nutrient elements are those most commonly applied to the crop in fertilizers. However, much of the work on nutrient rate requirements was conducted on native cultivars and there is an expectation that requirements of newer hybrid cultivars are greater. In Massachusetts, cranberries are grown in coastal watersheds and often depend on small lakes as their water source for irrigation, harvest, and winter flooding. Since cranberry production is heavily dependent on water use, the interaction of nutrient management and water management has become a primary focus area for research and extension, particularly for N and P, the nutrient elements most frequently associated with environmental pollution. Recent preliminary research examining cranberry farms with varied configurations (e.g., water passes through the bog and exits via a long channel, water recirculates back into the supply water body) has indicated that the cranberry bogs may act as either a source or sink for N depending on configuration and management activities. In a study of cranberry farms where P use was reduced to an average of <10 lb/acre, P concentration in harvest flood water declined by as much as 85% while crop production was sustained. Site variation in output of N and P in cranberry drainage and flood waters indicates the need for further research into the variables that control these processes, including soil types, site hydrology, nutrient application rates and forms, and water-management activities.

scholarly journals Implementing the Five Rs of Nutrient Stewardship for Fertigation in Florida’s Vegetable Production

EDIS ◽  
2020 ◽  
Vol 2020 (5) ◽  
Author(s):  
Mary Dixon ◽  
Guodong Liu
Keyword(s):  
Crop Production ◽  
Ammonia Volatilization ◽  
Nutrient Management ◽  
Greenhouse Gas Emission ◽  
Nitrogen Loss ◽  
Vegetable Production ◽  
Accuracy And Precision ◽  
Sustainable Nutrient Management ◽  
Commercial Crop ◽  
Source Rate

The five Rs of nutrient stewardship is a mnemonic device used to emphasize accuracy and precision for nutrient management so as to apply the (1) right source of fertilizer at the (2) right rate at the (3) right time in the (4) right place with the (5) right irrigation. Because the majority of Florida's soils are sandy, this fifth R is imperative for sustainable nutrient management for commercial crop production. These main points of nutrient management (source, rate, time, place, irrigation) may help enhance sustainability by reducing pollution by eutrophication, nitrogen loss through ammonia volatilization, and climate change from soil greenhouse gas emission. This new 8-page publication of the UF/IFAS Horticultural Sciences Department was written by Mary Dixon and Guodong Liu.https://edis.ifas.ufl.edu/hs1386

scholarly journals UF/IFAS Standardized Nutrient Recommendations for Vegetable Crop Production in Florida

EDIS ◽  
2022 ◽  
Vol 2021 (6) ◽  
Author(s):  
Rao Mylavarapu ◽  
George Hochmuth ◽  
Guodong Liu
Keyword(s):  
Environmental Management ◽  
Crop Production ◽  
Soil Testing ◽  
Soil Test ◽  
Vegetable Crops ◽  
Basic Information ◽  
Vegetable Crop ◽  
Testing Laboratory ◽  
State And Local ◽  
Local Agencies

This publication presents the fertilization recommendations for vegetable crops based on soil tests performed by the UF/IFAS Extension Soil Testing Laboratory (ESTL). It contains the basic information from which ESTL soil test reports and fertilization recommendations are generated. The audiences for this information include commercial and small farmers, crop advisers and consultants, state and local agencies, fertilizer industry, and any interested individuals interested in sustainable nutrient and environmental management. Major revision by Rao Mylavarapu, George Hochmuth, and Guodong Liu; 12 pp. https://edis.ifas.ufl.edu/cv002

Application of Surfactants in Commercial Crop Production for Water and Nutrient Management in Sandy Soil

EDIS ◽  
2013 ◽  
Vol 2013 (11) ◽  
Author(s):  
Guodong Liu ◽  
Monica Ozores-Hampton ◽  
Gene McAvoy ◽  
Ben Hogue ◽  
Crystal A. Snodgrass
Keyword(s):  
Sandy Soil ◽  
Large Volume ◽  
Crop Production ◽  
Nutrient Management ◽  
Sandy Soils ◽  
Fruit Production ◽  
Water Repellent ◽  
Application Of Surfactants ◽  
Fact Sheet ◽  
Commercial Crop

Water-repellent soils are unable to effectively adsorb or retain water. On these soils, water may simply pool on the surface or may move down preferred pathways, leaving large amounts of soil dry even when a large volume of water is applied. Thus, managing water and nutrients in sandy soils is often challenging. This 6-page fact sheet provides an overview of surfactants and how they may be used to better manage water and nutrients in sandy soils for vegetable and fruit production. Written by Guodong Liu, Monica Ozores-Hampton, Gene McAvoy, Ben Hogue, and Crystal A. Snodgrass, and published by the UF Department of Horticultural Sciences, December 2013. http://edis.ifas.ufl.edu/hs1230

scholarly journals Organic Vegetable Crop Production in Controlled Environments Using Soilless Media

2017 ◽  
Vol 27 (2) ◽  
pp. 166-170 ◽  
Author(s):  
Mary A. Rogers
Keyword(s):  
Crop Production ◽  
Nutrient Management ◽  
Production Systems ◽  
Technical Information ◽  
Future Research ◽  
Vegetable Production ◽  
Soilless Media ◽  
Organic Vegetable Production ◽  
Controlled Environments ◽  
National Organic Program

Organic vegetables produced in greenhouses and other controlled environments may fill a unique market niche as consumers demand local, high vegetables year round. However, limited technical information supports these production systems and more research is needed to provide recommendations for appropriate substrate mixes and nutrient management. Compost can be used as a substitute for peat-based media, and research results vary widely based on feedstock, compost method, and proportion used in mixes. Most studies consider compost in terms of peat-substitute or replacement and not as a source of fertility in soilless systems. Common challenges in using compost in soilless media are due to immaturity of the compost, poor water holding capacity, and unbalanced salinity and pH. It is possible to certify organic soilless production systems; however, the National Organic Program (NOP) of the U.S. Department of Agriculture has not yet provided clear rules and requirements supporting these systems. The objective of this article is to review the literature on soilless organic vegetable production, summarize results from the more widely studied topic of vegetable transplant production, and point to future research for organic agriculture.

scholarly journals Principios y prácticas para el manejo de nutrientes en la produccion de Hortalizas

EDIS ◽  
2007 ◽  
Vol 2007 (17) ◽  
Author(s):  
Alejandra Sierra ◽  
Eric Simonne ◽  
Danielle Treadwell
Keyword(s):  
Nutrient Management ◽  
Vegetable Production ◽  
Fact Sheet ◽  
Spanish Speaking

HS-1102, a 20-page fact sheet by Alejandra Sierra, Eric Simonne, and Danielle Treadwell, explains 5 key principles and 3 key practices for nutrient management in vegetable production for Spanish-speaking audiences. Includes references, and several tables. Published by the UF Department of Horticultural Sciences, July 2007. HS1102/HS356: Principios y prácticas para el manejo de nutrientes en la produccion de hortalizas (ufl.edu)

scholarly journals Organic Vegetable Production

EDIS ◽  
2006 ◽  
Vol 2006 (17) ◽  
Author(s):  
Danielle D. Treadwell
Keyword(s):  
Crop Production ◽  
Organic Production ◽  
Vegetable Production ◽  
General Introduction ◽  
Fact Sheet ◽  
Additional Information ◽  
Organic Vegetable Production ◽  
Organic Crop Production

Revised! HS-720, an 18-page fact sheet by D.D. Treadwell, is a general introduction to organic production, replacing a 4-page article by J.M White. Includes links to additional information and references. Published by the UF Department of Horticultural Sciences as part of the Vegetable Production Guide for Florida, September 2006. HS720/CV118: Introduction to Organic Crop Production (ufl.edu)

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