New root length and nitrogen fertiliser application
Modelling Nitrogen Fertiliser Demand in New Zealand
... inappropriate to use in an OLS regression. Using non-stationary variables in OLS regressions often leads to spurious results, which are typified by extremely high t ratios and R-squared statistics. Statistical tests of ...
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The interactive effects of nitrogen fertiliser and animal urine on nitrogen efficiency and losses in New Zealand dairy farming systems
... and fertiliser N use to N losses from the soil/plant system in dairy operations, few have studied the interaction of urine patches and fertiliser N and the effect such an interaction may have on N ...
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USING HUMIC COMPOUNDS TO IMPROVE EFFICIENCY OF FERTILISER NITROGEN
... Nitrogen fertiliser applied as urea or ammonia is converted to nitrate in the soil before being taken up by the pasture plant root system (Lynch, ...water. New Zealand streams, rivers, lakes ...
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Nitrogen in agriculture: an overview and definitions of nitrogen use efficiency (Proceedings of the International Fertiliser Society No 651)
... growing root crops, ...a new equilibrium value for grassland and some of the applied fertiliser N was retained in soil rather than increasing grass ...
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Influence of Irrigation Scheduling with Levels and Times of Nitrogen Application on Root Growth of Aerobic Rice
... of nitrogen applications significantly influenced the root throughout the crop growth ...with application of nitro- gen at 150 kg·ha −1 in 5 equal splits at 20, 35, 50, 65 and 80 DAS enhanced the ...
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Quantifying the interactions between defoliation interval, defoliation intensity and nitrogen fertiliser application on the nutritive value of rainfed and irrigated perennial ryegrass
... The two most important aspects to grazing management are grazing interval (rotation length or when to graze) and grazing intensity (post-grazing residual). In practice, the number of days between consecutive ...
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The current status of nitrogen fertiliser use efficiency and future research directions for the Australian cotton industry
... N fertiliser was applied than was required, with the excess N most likely lost through denitrification (Grace et ...3). Application rates in dryland production rarely exceed 100 kg·hm − 2 of N, with lint ...
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Effects of Nitrogen Supply on the Root Morphology of Corn and Velvetleaf
... of new biomass partitioned to roots when N supply is ...that root biomass does not decline with N de- ficiency as much as shoot ...Since root biomass may still be smaller, it is reasonable that ...
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Effects of fertiliser nitrogen rate to spring grass on apparent digestibility, nitrogen balance, ruminal fermentation and microbial nitrogen production in beef cattle and in vitro rumen fermentation and methane output
... inorganic fertiliser N application rates -15 (LN) and 80 (HN) kg N/ha per cut - in the form of calcium ammonium nitrate (270 g ...herbage, fertiliser N was applied 21 d prior to harvesting each of ...
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Response of simple grass-white clover and multi-species pastures to gibberellic acid or nitrogen fertiliser in autumn
... in New Zealand is driven by seasonal feed supply and demand, and the amount of pasture that is grown on ...Lactation length is influenced by feed supply and extra days in milk in the autumn increases total ...
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Impact of the size of nitrogen fertiliser application rate on N2O flux
... The application rate of a nitrogen fertiliser is one of the most important factors that affect the nitrous oxide (N 2 O) ...27% nitrogen content was spread by a fertiliser spreader ...
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Douglas Shire Fertiliser Trial and a Review of Nitrogen Fertiliser Research in Sugarcane Cultivation
... different fertiliser management ...from fertiliser management systems such as Six Easy Steps and Nitrogen Replacement System at the paddock ...
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Nitrogen fertiliser replacement values for organic amendments appear to increase with N application rates
... This meta-analysis of eight long term experiments on different types of organic amendments shows that NFRV of FYM was roughly up to two times larger at high than at low total N supply rate. Currently, NFRV is usually ...
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Optimising nitrogen storage in wheat canopies for genetic reduction in fertiliser nitrogen inputs
... the new version of SIRIUS (Jamieson and Semenov, 2000), the model is still somewhat limited by a lack of data on the functioning, location and capacity of this canopy trait and its response to N supply, and by the ...
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A New Criterion for Lag-Length Selection in Unit Root Tests
... unit root tests which has become a major specification problem in empirical analysis of non-stationary time series ...unit root tests requires the choice of optimal truncation lag for good power proper ties ...
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Effect of Nitrogen Application Rates on Pecan Above Ground Physiology and Root Traits
... fertilizer application, they should have responded to the extra N availability, thus, it can still be concluded that in this orchard it was not necessary to apply fertilizer during the establishment of these tree ...
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Influence of the depth of nitrogen-phosphorus fertiliser placement in soil on maize yielding
... (NP) fertiliser application in the soil layer, the type of nitrogen fertiliser (ammonium nitrate and urea) and the date of its ...NP fertiliser, regardless of the years, significantly ...
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2/3rd length of the root canal for the post length (67
... The participants of the study preferred to use sodium hypochlorite followed by saline for rinsing the root canal. (28) Very little is known about the long term clinical performance of various cements used for the ...
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The interactive effects of fertiliser nitrogen with dung and urine on nitrous oxide emissions in grassland
... Although application of nitrogen (N) fertiliser is a feature of many grazing systems, limited data is available on N 2 O emissions in grassland as a result of the interaction between urine, dung and ...
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Solid fertiliser. Direct. Direct N P K S. Nitrogen. debit
... Nitrogen products mixed with super-based products have the propensity to become lumpy even in relatively short periods of time. Applications should take place promptly. Segregation may occur when mixed with ...
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