Variable Rate Liquid Nitrogen Application for Cotton and Corn Production

2001 ◽  
Author(s):  
C. G. Bowers ◽  
G. T. Roberson ◽  
D. K. Cassel ◽  
G. C. Naderman ◽  
Cavell Brownie
Keyword(s):  
Liquid Nitrogen ◽  
Variable Rate ◽  
Nitrogen Application ◽  
Corn Production

scholarly journals Effect of Nitrogen Application Timing on Corn Production Using Subsurface Drip Irrigation

Soil Science ◽  
2009 ◽  
Vol 174 (3) ◽  
pp. 174-179 ◽  
Author(s):  
David D. Tarkalson ◽  
Simon J. Van Donk ◽  
James L. Petersen
Keyword(s):  
Drip Irrigation ◽  
Subsurface Drip Irrigation ◽  
Nitrogen Application ◽  
Corn Production ◽  
Application Timing ◽  
Subsurface Drip

Effects of Variable Rate Nitrogen Application on cv. Barbera Performance: Vegetative Growth and Leaf Nutritional Status

2018 ◽  
Vol 69 (3) ◽  
pp. 196-209 ◽  
Author(s):  
Matteo Gatti ◽  
Cecilia Squeri ◽  
Alessandra Garavani ◽  
Alberto Vercesi ◽  
Paolo Dosso ◽  
...  
Keyword(s):  
Nutritional Status ◽  
Vegetative Growth ◽  
Variable Rate ◽  
Nitrogen Application ◽  
Cv Barbera

scholarly journals Improvements in corn production technology using liquid nitrogen fertilizers

2021 ◽  
Vol 37 ◽  
pp. 00122
Author(s):  
Vladimir Milyutkin ◽  
Vladimir Sysoev ◽  
Oxana Blinova ◽  
Andrey Makushin ◽  
Natalia Prazdnichkova
Keyword(s):  
Ammonium Nitrate ◽  
Liquid Nitrogen ◽  
Nitrogen Fertilizers ◽  
Mineral Fertilizers ◽  
Corn Yield ◽  
Corn Production ◽  
Samara Oblast ◽  
Solid Nitrogen ◽  
Urea Ammonium Nitrate ◽  
Regions Of Russia

The article is devoted to improvements in technology of corn production using liquid nitrogen fertilizers such as urea ammonium nitrate (UAN), in pure form UAN-32 or with the addition of sulphur UAN+S, with various methods of application before seeding or leaf-feeding dressings. This technology provides an increase in the corn yield with additional efficiency compared with the use of solid nitrogen mineral fertilizers like ammonium nitrate in conditions of insufficient moisture, which are typical of many regions of Russia and especially of the Volga region (Samara oblast).

scholarly journals Economic Comparison of Satellite, Plane and UAV-Acquired NDVI Images for Site-Specific Nitrogen Application: Observations from Italy

Agronomy ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2098
Author(s):  
Marco Sozzi ◽  
Ahmed Kayad ◽  
Stefano Gobbo ◽  
Alessia Cogato ◽  
Luigi Sartori ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Decision Making ◽  
Optical Properties ◽  
High Resolution ◽  
Economic Benefits ◽  
Decision Making Process ◽  
Variable Rate ◽  
Nitrogen Application ◽  
Sensing Platforms ◽  
Medium Resolution

Defining the most profitable remote sensing platforms is a difficult decision-making process, as it requires agronomic and economic considerations. In this paper, the price and profitability of three levels of remote sensing platforms were evaluated to define a decision-making process. Prices of satellite, plane and UAV-acquired vegetation indices were collected in Italy during 2020 and compared to the economic benefits resulting from variable rate nitrogen application, according to a bibliographic meta-analysis performed on grains. The quality comparison of these three technologies was performed considering the error propagation in the NDVI formula. The errors of the single bands were used to assess the optical properties of the sensors. Results showed that medium-resolution satellite data with good optical properties could be profitably used for variable rate nitrogen applications starting from 2.5 hectares, in case of medium resolution with good optical properties. High-resolution satellites with lower optical quality were profitable starting from 13.2 hectares, while very high-resolution satellites with good optical properties could be profitably used starting from 76.8 hectares. Plane-acquired images, which have good optical properties, were profitable starting from 66.4 hectares. Additionally, a reference model for satellite image price is proposed.

scholarly journals Estimation of maize yield and effects of variable-rate nitrogen application using UAV-based RGB imagery

2020 ◽  
Vol 189 ◽  
pp. 24-35 ◽  
Author(s):  
Meina Zhang ◽  
Jianfeng Zhou ◽  
Kenneth A. Sudduth ◽  
Newell R. Kitchen
Keyword(s):  
Maize Yield ◽  
Variable Rate ◽  
Nitrogen Application

Effects of Variable Rate Nitrogen Application on cv. Barbera Performance: Yield and Grape Composition

2019 ◽  
Vol 70 (2) ◽  
pp. 188-200 ◽  
Author(s):  
Matteo Gatti ◽  
Cecilia Squeri ◽  
Alessandra Garavani ◽  
Tommaso Frioni ◽  
Paolo Dosso ◽  
...  
Keyword(s):  
Variable Rate ◽  
Nitrogen Application ◽  
Cv Barbera
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