Effects of fertiliser nitrogen and 2-chloro-6-(trichloromethyl)-pyridine (‘n-serve’) on soil nitrification, yield, and nitrogen uptake of ‘arawa’ and ‘hilgendorf’ wheats

Goh, K. M.; Young, A. W.

doi:10.1080/00288233.1975.10423636

Cited by 8 publications

(5 citation statements)

References 23 publications

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“…The positive response of yield parameters to the application of nitrapyrin with applied N is consistent with results previously obtained in pot (Goh and Young, 1975) and field experiments (Huber et al, 1980). The negative response of wheat to the application of nitrapyrin in unfertilized soil has also been reported previously (Lewis and Stefanson, 1975;Nielsen et al, 1967).…”

Section: Dry Matter N Uptake and Grain Yieldsupporting

confidence: 91%

“…Assessment of the relative contribution of inorganic forms of N to the nutrition of soil-grown plants has been based on an equivocal comparison of response to nitrate and inhibitor-treated and untreated ammonium fertilizers either unlabelled (e.g. Goh and Young, 1975;Lewis and Stefanson, 1975) or labelled with 15N (e.g. Gasser et al, 1967;Kowalenko and Cameron, 1978).…”

Section: Introductionmentioning

confidence: 99%

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Sources of N uptake by wheat (Triticum aestivum L.) and N transformations in soil treated with a nitrification inhibitor (nitrapyrin)

Crawford

Chalk

1993

Plant Soil

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Rates of N uptake by spring wheat as ammonium and as nitrate, and rates of nitrification, gross N immobilization and gross N mineralization were measured in a pot experiment during 84 days of growth in a clay soil. Soil treatments included an unfertilized control and addition of 15NH4NO 3 or NHn~SNO3 in the absence and presence of N-serve 24E.Incorporation of ammonium into the soil organic N pool was considerably higher in the presence compared to the absence of nitrapyrin, but the processes contributing to this effect could not be positively identified. Both dry matter and grain yield as well as N uptake by wheat were enhanced in the presence of the inhibitor in N fertilized soil, despite the increased immobilization of N. On the other hand, inhibitor application had a detrimental effect on yield and N uptake by wheat in unfertilized soil.Both ammonium and nitrate forms of inorganic N were absorbed by wheat, but nitrate uptake was dominant in the absence of the inhibitor. The uptake of N as ammonium was higher and the uptake of N as nitrate was less, both in absolute and proportional terms, in the presence compared to the absence of inhibitor. In addition, the proportion of N taken up as ammonium was higher than the proportion of N as ammonium in the available N pool up to day 56 in the inhibitor treatment, which indicated a preference for ammonium uptake by wheat.Evidence was obtained which suggested that several factors may have contributed to the positive response of wheat to inhibitor application in N fertilized soil, including reduced N losses, higher gross N mineralization and a physiological response due to the proportional increase in uptake of inorganic N as ammonium.

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Section: Dry Matter N Uptake and Grain Yieldsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Sources of N uptake by wheat (Triticum aestivum L.) and N transformations in soil treated with a nitrification inhibitor (nitrapyrin)

Crawford

Chalk

1993

Plant Soil

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“…The chemical structure, properties, and the mode of action of many different compounds used as inhibitors of nitrification have been reviewed extensively by Prasad et al (1971 ). The addition of nitrapyrin (2-chloro-6-(trichloroniethyl)pyridine), a nitrification inhibitor, to ammonium sulphate fertilizer significantly increased the amount of exchangeable ammonium in cropped soils after 60 days (Goh & Young, 1975). Nitrapyrin increased the total amount of mineral nitrogen present and also decreased net losses of mineral nitrogen after 60 days.…”

Section: (B) Nitrzjicationmentioning

confidence: 99%

Ammonium and Nitrate Nutrition of Plants

Haynes¹,

Goh²

1978

Biological Reviews

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522

265

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“…Nitrate levels were lower than those of the fertilisers alone, although significantly greater than controls (Tables 1, 2), indicating that total inhibition of nitrification was not achieved, even though N-serve was added at the rate of 8% of fertiliser N, which is very much higher than the recommended rate (Spratt & Gasser 1970). Partial control has been reported by many workers (Goh & Young 1975;Lakhdive & Prasad 1970;Goring 1962), because the entire soil mass cannot be treated completely by the chemical. Effectiveness of N-serve as a nitrification inhibitor in soil has been shown recently by a number of workers (Reddy & Prasad 1975; Bundy & Bremner 1974).…”

Section: Effects Of Fertiliser N Forms On Media Nh4·n and N03-n Levelsmentioning

confidence: 84%

“…The former type of fertiliser is widely used in container media in New Zealand to reduce labour input in producing quality plants. Although 'N-serve' (2-chloro-6-(trichloromethyl) -(pyridine) has not been used in nursery potting media in New Zealand, its beneficial effects in reducing leaching and denitrification losses in field experiments have been reported overseas (Goh & Young 1975). It can also be used to retard nitrification, thus creating different levels of NH±-N and N03-N in the media for elucidating the nature of NHI-N and N03-N nutrition of plants.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of potting media for commercial nursery production of container grown plants

Goh

Haynes

1977

New Zealand Journal of Agricultural Research

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Addition of fertilisers increased significantly the levels of NH4-N and N03-N in nursery potting media, and the effect of fertiliser form on NH4-N and N03-N levels was less apparent in cropped media than in fallow media. Nitrification was only partially controlled in the soil media, and 'N-serve' (2-chloro-6-(trichloromethyl) -pyridine) had less effect on nitrification in soilless media (peat-sand and peat-sand-sawdust) because of low microbial activity. If the application of fertiliser nitrogen (N) did not affect mineralisation of native soil N, estimates of N recovery showed that aster plants recovered less than 50% of the applied N. In soilless media plant recovery of N from osmocote was about 10% above those from IBDU (isobutylidene diurea), (NHt) 2S04, and urea, which in turn were higher than those from N-serve treatments of these fertilisers. In the soil medium percent N recoveries from all fertiliser treatments were similar. Total recoveries for fertiliser N were consistently higher in fallow pots than in their cropped counterparts probably because of higher leaching losses of N in cropped media. A high proportion of the applied N was immobilised, more in fallow than in cropped media. The mean percentages of immobilisation were 50 and 39 for peat-sand, 81 and 54 for peat-sand-sawdust, and 37 and 18 for peat-sand-soil in fallow and cropped soils respectively. The high degree of immobilisation in peat-sand-sawdust was because of a very high C: N ratio. 383

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Effects of fertiliser nitrogen and 2-chloro-6-(trichloromethyl)-pyridine (‘n-serve’) on soil nitrification, yield, and nitrogen uptake of ‘arawa’ and ‘hilgendorf’ wheats

Cited by 8 publications

References 23 publications

Sources of N uptake by wheat (Triticum aestivum L.) and N transformations in soil treated with a nitrification inhibitor (nitrapyrin)

Sources of N uptake by wheat (Triticum aestivum L.) and N transformations in soil treated with a nitrification inhibitor (nitrapyrin)

Ammonium and Nitrate Nutrition of Plants

Evaluation of potting media for commercial nursery production of container grown plants

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