scholarly journals Comparative Effects of Nitrogen Fertigation and Granular Fertilizer Application on Growth and Availability of Soil Nitrogen during Establishment of Highbush Blueberry

2011 ◽  
Vol 2 ◽  
Author(s):  
David R. Bryla ◽  
Rui M. A. Machado
Keyword(s):  
Soil Nitrogen ◽  
Fertilizer Application ◽  
Highbush Blueberry

scholarly journals The content of polyphenols in fruit of highbush blueberry (Vaccinium corymbosum L.) relating to different fertilizer application

2015 ◽  
Vol 4 (Special issue 3) ◽  
pp. 109-113
Author(s):  
Michal Medvecký ◽  
Ján Daniel ◽  
Alena Vollmannová ◽  
Stanislav Zupka ◽  
Miriama Kopernická
Keyword(s):  
Fertilizer Application ◽  
Vaccinium Corymbosum ◽  
Highbush Blueberry

Excess soil nitrogen and the yield and uptake of nitrogen by wheat in southern New South Wales

1965 ◽  
Vol 5 (18) ◽  
pp. 317 ◽  
Author(s):  
RR Storrier
Keyword(s):  
Grain Yield ◽  
Soil Nitrogen ◽  
Dry Matter ◽  
New South ◽  
New South Wales ◽  
Fertilizer Application ◽  
Mineral Nitrogen ◽  
Grain Number ◽  
South Wales ◽  
Ear Number

Ammonium sulphate was added at rates up to 150 lb nitrogen an acre to a soil containing 149 lb mineral nitrogen per acre-18 Inches at sowing, and the seasonal distribution of mineral nitrogen in the soil, nitrogen uptake, and yield of wheat was measured in a better than average season. Some of the applied fertilizer, at all rates of application, was taken up by the crop and resulted in increased dry matter yield and plant nitrogen content at jointing. However, at harvest, total dry matter and grain yield were depressed at all levels of fertilizer application. Grain yield was depressed from 40.5 to 30.5 bushels an acre with the addition of 150 lb nitrogen an acre.Yield potential, as represented by tiller production and spikelets per ear, was increased by fertilizer application, but ear number, grains per ear, and weight per grain, were depressed. Grain number per ear was the principle component of yield under the experimental conditions. Moisture stress and competition for light were responsible for an increase in tiller mortality, which resulted in the depression in ear number with increasing nitrogen supply. Inter-tiller competition for available moisture during the pre-anthesis period caused a decrease in grain number per ear, from 19.3 in the control to 16.6 at the maximum fertilizer rate. It is suggested that inter-tiller competition for available moisture during the pre-anthesis period is an important factor in determining potential grain yield in wheat grown on high fertility soils in southern New South Wales.

Sign in / Sign up

Export Citation Format

Share Document