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The effect of the soil compaction on the contents of alfalfa root reserve nutrients in relation to the stand density and the amount of root biomass
alfalfa soil density root reserve nutriet
2015/1/30
The reserve root nutrients influence the overwintering, regrowth, yield, and persistence of alfalfa plants. The total amount of the root reserves is considered more important than their concentration....
Parametric modeling of root length density and root water uptake in unsaturated soil
Modeling optimization root distribution TDR water flow
2010/10/29
The problem of water movement through the root zone has attracted increasing interest during the last few decades. In this research, the spatial and temporal pattern of root water uptake in wetted soi...
Time-dependent changes in distribution patterns of soil bulk density and penetration resistance in a rangeland under overgrazing
Bulk density overgrazing penetration resistance rangeland soil compaction spatial variability
2011/3/29
High soil bulk density and penetration resistance as an indication of soil compaction affect soil infiltration and
runoff. Overgrazed rangelands are under severe erosion risk because of soil compacti...
Influence of fertilization intensity and sowing density on yield of winter triticale VARIETY wOltario
variety Woltario NPK fertilization plant density yield winter triticale
2009/3/31
The aim of this research was to obtain the influence of fertilization level and sowing density on changes in the grain yield of the winter triticale cv. Woltario. The experiment was conducted in micro...
MOISTURE IN DIFFERENT SOIL LAYERS DEPENDING ON WEED DENSITY IN COTTON
moisture in different soil layers weeds cotton
2010/12/3
The main competitors of cotton during the crop production are annual late-spring weeds with some perennial species representing the second most important group. During the 1999-2001 period the effect ...
Effect of N-Fertilizer and Plant Density on Yield and Quality of Maize in Sandy Soil
Maize-N-Fertilizer-row spacing N-Fertilizer Plant Density Sandy Soil
2010/11/8
Two field experiments were conducted during the two seasons of 2004and 2005 in a private farm
at El-Nagah village, south El-Tahrir provience, Al-Behaira. Governorate, Egypt to study the effect of Nfe...
Over-wintering of the Colorado potato beetle (Leptinotarsa decemlineata Say) in field conditions and factors affecting its population density in Estonia
Colorado potato beetles overwintering soil type mortality
2010/1/14
The adaptation of Colorado potato beetles (CPB) (Leptinotarsa decemlineata Say) to low temperatures has been the basis for the formation of a local permanent population in Estonia. The number of this ...
Changes of nitrogen assimilation and intracellular fluid pH in plants of barley depending on bulk density of compacted soils
soil compaction soil bulk density nutrients nitrogen assimilation cellular fluid pH
2010/1/12
The penetration resistance of different arable soils is quite different depending on the Estonian area. We are briefly introducing the results of our research on soil compaction, penetration resistanc...