GRAZING INTENSITY AND SOIL NITROGEN ACCUMULATION
نویسندگان
چکیده
منابع مشابه
Depth of nitrogen fertiliser placement affects nitrogen accumulation, translocation and nitrate-nitrogen content in soil of rainfed wheat
A field experiment was conducted to examine the effects of different depths ofnitrogen (N) fertiliser placements on N accumulation, remobilisation and NO3−-Ncontent in soil of rainfed wheat. Nitrogen was applied on the surface (D1) and inthe 10 cm (D2), 20 cm (D3) and 30 cm (D4) soil layers from 2010 to 2012.Compared with D1 and D2, D3 and D4 treatments obtained significant higher Ndistribution...
متن کاملMaize response to water, salinity and nitrogen levels: soil and plant ions accumulation
In the present study, some nutritional imbalances, specific ion toxicity and yield-ion concentration relationships in maize under water, nitrogen (N) and salinity stresses were assessed. Effect of different levels of irrigation water (I1=1.0ETc+0.25ETc as leaching, I2 =0.75I1 and I3 =0.5I1) as main plot, salinity of irrigation water (S1=0.6, S2= 2.0 and S3=4.0 dS m-1) as sub-plot and N fertiliz...
متن کاملCombination effect of grazing intensity and livestock type (sheep, cattle and integrated grazing) on physical and chemical properties of soil (Case study: woody rangelands of Savadkouh city, Mazandaran)
Intense grazing of rangeland is one of the most important factors affecting rangeland degradation, which causes soil compaction, increased runoff, weakening and degradation of vegetation, and changes in rangeland species composition, and ultimately affects forage and livestock production. The present study was conducted to investigate the different intensities of cattle and sheep grazing and in...
متن کاملDIVISION S-4—SOIL FERTILITY & PLANT NUTRITION Relationships Between Soil Nitrogen Availability Indices, Yield, and Nitrogen Accumulation of Wheat
ney, 1982), have been proposed. Stanford and Smith (1972) developed a biologically based, long-term incuThe success of variable rate N fertilizer application rests on our bation method whereby potentially mineralizable N can ability to predict the contribution of soil N to growing crops. We assessed relationships between soil N availability indices (SNAIs), be estimated using one-pool (Stanford...
متن کاملEffect of Grazing Intensity on Soil Density of Inchehbroon Rangelands (Golestan province, Iran)
Infiltration rate of water into the soil depends on the factors such as rock and litter cover, canopy cover, rainfall intensity, coarse material, land slope, soil texture and amount of initial soil moisture. The most important factors that are effective in the water infiltration rate of rangelands are livestock trampling and vegetation reduction due to the overgrazing. In present study, through...
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ژورنال
عنوان ژورنال: Proceedings of the New Zealand Grassland Association
سال: 1985
ISSN: 1179-4577,0369-3902
DOI: 10.33584/jnzg.1985.46.1713