EFFECTS OF DIFFERENT LEVELS OF WATER SUPPLY ON GAS EXCHANGES OF EARLY RIPENING PEACH TREES

1996 ◽  
pp. 113-120 ◽  
Author(s):  
S. Natali ◽  
C. Bignami ◽  
C. Cammilli
Keyword(s):  
Water Supply ◽  
Gas Exchanges ◽  
Early Ripening ◽  
Peach Trees ◽  
Different Levels

scholarly journals Growth of Three Rice (Oryza sativaL.) Cultivars under Upland Conditions with Different Levels of Water Supply

2006 ◽  
Vol 9 (4) ◽  
pp. 422-434 ◽  
Author(s):  
Yoichiro Kato ◽  
Akihiko Kamoshita ◽  
Junko Yamagishi ◽  
Jun Abe
Keyword(s):  
Water Supply ◽  
Upland Conditions ◽  
Different Levels

scholarly journals Computational modelling methods for assessing the risks from lead in drinking water

2010 ◽  
Vol 8 (3) ◽  
pp. 532-542 ◽  
Author(s):  
Colin R. Hayes
Keyword(s):  
Risk Assessment ◽  
At Risk ◽  
Drinking Water ◽  
Water Supply ◽  
Computational Modelling ◽  
Worst Case ◽  
Lead Pipe ◽  
Modelling Methods ◽  
Very High ◽  
Different Levels

Computational modelling methods have been used to predict the risks from lead in drinking water across a simulated supply zone, for a range of plumbosolvency conditions and a range of extents of occurrence of houses having a lead pipe, on the basis of five risk benchmarking methods. For the worst case modelled (very high plumbosolvency and 90% houses with a lead pipe) the percentage of houses at risk in the simulated zone ranged from 34.1 to 73.3%. In contrast, for a simulated phosphate-treated zone and 10% houses with a lead pipe, the percentage of houses at risk in the simulated zone ranged from 0 to 0.4%. Methods are proposed for using computational modelling for different levels of risk assessment, for both water supply zones and individual houses. These risk assessment methods will inform policy, help to set improvement priorities and facilitate a better understanding of corrective options.

Influence of controlled water supply on shoot and root development of young peach trees

1995 ◽  
Vol 15 (2) ◽  
pp. 95-103 ◽  
Author(s):  
N. A. Hipps ◽  
L. Pages ◽  
J. G. Huguet ◽  
V. Serra
Keyword(s):  
Water Supply ◽  
Root Development ◽  
Peach Trees

scholarly journals ,. Economic efficiency of maize growing technologies of different levels of intensity

2020 ◽  
Vol 107 (3) ◽  
pp. 27-34
Author(s):  
V. Kaminskyi ◽  
◽  
N. Asanishvili ◽  
◽  
Keyword(s):  
Economic Efficiency ◽  
High Intensity ◽  
Cost Effective ◽  
Forest Steppe ◽  
Resource Saving ◽  
Maize Hybrid ◽  
Early Ripening ◽  
Production Strategy ◽  
Stable Yield ◽  
Different Levels

Economic efficiency of maize growing technologies of different levels of intensity The article presents the results of research on improving the economic efficiency of technologies for growing corn of different levels of intensity in the Forest-Steppe. Taking into account the production strategy, cost-effective resource-saving, intensive and high-intensity technologies have been singled out, which provide stable yield of early-ripening maize hybrid at the level of 6.16–7.08; 7.58–8.77 and 9.87 t/ha in the Forest-Steppe conditions, respectively, with a profit of 19.03–22.07; 19.7–23.96 and 25.13 thousand UAH/ha with a profitability of 128–166; 108–121 and 104%. Keywords: corn, growing technology, intensification, resource saving, yield, grain cost, profit, profitability.

Foliar Urea Can Supplement Soil-applied Fertilizer in an Early Maturing Peach

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 549a-549
Author(s):  
R.S. Johnson ◽  
R.C. Rosecrance ◽  
H.L. Andris
Keyword(s):  
Vegetative Growth ◽  
Fruit Size ◽  
N Distribution ◽  
Early Maturing ◽  
Early Ripening ◽  
Peach Trees ◽  
Foliar Urea

Despite early studies that suggested foliar urea was ineffective in supplying nitrogen to peach trees, recent studies have shown rapid uptake of low biuret urea by peach leaves and subsequent mobilization to perennial tree parts. Labeled nitrogen experiments have demonstrated the distribution of N among organs to be very similar whether the N is supplied from foliar urea or from soil-applied fertilizer. However, questions still remain concerning the long-term productivity of trees treated repeatedly with foliar urea. Our first experiment was conducted on an early ripening peach, which generally requires about 100 kg N/ha applied to the soil. The treatment to replace all soil applied N with two or three foliar applications of urea in the fall resulted in similar N distribution throughout the tree and equal vegetative growth. However, fruit size was consistently smaller than the soil-fertilized control over a 3-year period. Our second experiment, conducted on the same variety, imposed a treatment to supplement about half the soil applied fertilizer with fall foliar urea applications. This treatment was able to maintain fruit size and yield over a 2-year period. Furthermore, vegetative growth was reduced compared to the soil-fertilized control, suggesting foliar urea may be a useful tool to help manipulate the distribution of growth between reproductive and vegetative processes.

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