scholarly journals Nutrient Mobility and Availability with Selected Irrigation and Drainage Systems for Vegetable Crops on Sandy Soils

10.5772/31208 ◽  
2012 ◽  
Author(s):  
Shinjiro Sato ◽  
Kelly T.
Keyword(s):  
Sandy Soils ◽  
Vegetable Crops ◽  
Drainage Systems ◽  
Nutrient Mobility

scholarly journals Fertilizer Management for Drip-irrigated Vegetables in Florida

1992 ◽  
Vol 2 (1) ◽  
pp. 27-32 ◽  
Author(s):  
G.J. Hochmuth
Keyword(s):  
Water Use ◽  
Potential Risk ◽  
Drip Irrigation ◽  
Nutrient Management ◽  
Sandy Soils ◽  
Fertilizer Application ◽  
Fertilizer Efficiency ◽  
Vegetable Crops ◽  
Fertilizer Management ◽  
Surface And Groundwater

Fertilizer application by drip irrigation is becoming a common practice for many vegetable crops, especially in Florida. Vegetable producers view drip irrigation as a tool to reduce water use, increase fertilizer efficiency, and improve profits, while simultaneously reducing the potential risk to the environment due to nutrient enrichment of surface and groundwater. This paper presents the current Univ. of Florida recommendations for fertilizer management with drip irrigation for vegetables in Florida. These recommendations are based on more than 15 years of research on water and nutrient management with drip irrigation. Although these recommendations were developed for largely sandy soils from mostly Florida research, they should be easily adaptable for other U.S. vegetable regions on sandy soils.

COMBINED FERTILIZATION AND IRRIGATION OF VEGETABLE CROPS IN SANDY SOILS

1979 ◽  
pp. 105-106
Author(s):  
U. Kafkafi
Keyword(s):  
Sandy Soils ◽  
Vegetable Crops

Benchmarking and mitigation of nitrous oxide emissions from manures and fertilisers used in temperate vegetable crops in Australia

Soil Research ◽  
2017 ◽  
Vol 55 (6) ◽  
pp. 534 ◽  
Author(s):  
Ian Porter ◽  
David Riches ◽  
Clemens Scheer
Keyword(s):  
Co2 Emissions ◽  
Nitrification Inhibitor ◽  
Sandy Soils ◽  
Field Trials ◽  
Chicken Manure ◽  
Nitrous Oxide Emissions ◽  
N2o Emissions ◽  
Vegetable Crops ◽  
Traditional Practice ◽  
Negative Effect

This study benchmarked N2O and CO2 emissions in heavily (>1 Nitrogen t annually) manured and fertilised sandy soils in temperate Australia and demonstrated the mitigation of N2O emissions using the nitrification inhibitor (NI) 3,4-dimethylpyrazole phosphate (DMPP). Three field trials conducted on celery crops from 2014 to 2016 showed that the traditional practice of adding composted chicken manure (4.5–8.0 t ha–1) to the surface of sandy soils produced large spikes in daily emissions of N2O (up to 1860 g ha–1 day–1) and that further spikes occurred with each subsequent fertiliser application. Pre-crop incorporation of manure (8–9 t ha–1) rather than surface application reduced the daily N2O-N emission flux from 1800 to <200 g ha–1 day–1. The use of DMPP, applied to both manures and fertilisers, reduced cumulative N2O emissions during the cropping period by 64–76%, with greater reductions occurring for surface-applied manures and fertilisers. DMPP-treated plots had higher levels of ammonium-N in soil. CO2 emissions were not affected by DMPP, indicating no negative effect on microbial activity. There was no difference in yields or product quality between the standard grower practice plots and plots treated with DMPP at the full or half rate, indicating overuse of N inputs and no negative effects of DMPP. Because N2O emissions were markedly reduced and yields unaffected by lower rates of NI-treated inputs, the use of NIs, particularly with manures, is an excellent cropping practice for these sandy soils to reduce the negative effect of excess N on the environment and to avoid the overuse of fertilisers and manures by growers. This study showed that the cumulative emissions of N2O for celery production over the cropping period using the standard grower practice translated to annual emissions of 27–68 kg N ha–1 year–1, among the highest recorded for Australian crops.

Thermal/electric energy generation and CO2 production for greenhouse facilities

2019 ◽  
Vol 2 (3) ◽  
pp. 141-151
Author(s):  
O. E. Gnezdova ◽  
E. S. Chugunkova
Keyword(s):  
Carbon Dioxide ◽  
Power Distribution ◽  
Power Plants ◽  
Electric Energy ◽  
Electricity Consumption ◽  
Vegetable Crops ◽  
Carbon Dioxide Injection ◽  
Electricity Rates ◽  
Traditional Patterns ◽  
Generation Power

Introduction: greenhouses need microclimate control systems to grow agricultural crops. The method of carbon dioxide injection, which is currently used by agricultural companies, causes particular problems. Co-generation power plants may boost the greenhouse efficiency, as they are capable of producing electric energy, heat and cold, as well as carbon dioxide designated for greenhouse plants.Methods: the co-authors provide their estimates of the future gas/electricity rates growth in the short term; they have made a breakdown of the costs of greenhouse products, and they have also compiled the diagrams describing electricity consumption in case of traditional and non-traditional patterns of power supply; they also provide a power distribution pattern typical for greenhouse businesses, as well as the structure and the principle of operation of a co-generation unit used by a greenhouse facility.Results and discussion: the co-authors highlight the strengths of co-generation units used by greenhouse facilities. They have also identified the biological features of carbon dioxide generation and consumption, and they have listed the consequences of using carbon dioxide to enrich vegetable crops.Conclusion: the co-authors have formulated the expediency of using co-generation power plants as part of power generation facilities that serve greenhouses.

Bok Choy, an Asian Leafy Green Vegetable Emerging in Florida

EDIS ◽  
2019 ◽  
Vol 2019 (6) ◽  
pp. 5
Author(s):  
Hai Liu ◽  
Guodong Liu
Keyword(s):  
Graduate Students ◽  
Crop Production ◽  
Health Benefits ◽  
Extension Agents ◽  
Vegetable Crops ◽  
Green Vegetable ◽  
General Overview

Asian vegetable crops are rapidly expanding in Florida in the last decade due to their health benefits combined with their high profitability. These crops can help increase vegetable growers’ income and diversify Florida’s crop production, and they are new to most Floridians. This new 5-page article provides a general overview of bok choy for vegetable growers, crop consultants, certified crop advisors, Extension agents, and graduate students. Written by Hai Liu and Guodong Liu and published by the UF/IFAS Horticultural Sciences Department.https://edis.ifas.ufl.edu/hs1337

Specific composition and structure of population phytopathogens of vegetable crops

2019 ◽  
Vol 326 (3) ◽  
pp. 76-78
Author(s):  
V.L. Nalobova ◽  
◽  
N.S. Opimah ◽  
M.V. Nalobova ◽  
I.V. Haponenka ◽  
...  
Keyword(s):  
Vegetable Crops ◽  
Specific Composition ◽  
Composition And Structure ◽  
Structure Of Population
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