Metabolism of the urease inhibitor n-(n -butyl)thiophosphoric triamide (nbpt) in soils

Hendrickson, L. L.; Douglass, E.A.

doi:10.1016/0038-0717(93)90017-6

Cited by 58 publications

(32 citation statements)

References 14 publications

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“…Urea management in no‐till corn production systems can be difficult due to volatilization loss. Medeiros (22) evaluated urea plus urease inhibitor NBPT, urea plus NBPT + DCD, polymer‐ and gel‐coated urea (N‐urea, Muscle Shoals), incorporated urea, and knife injected urea compared with broadcast urea in central Missouri no‐till corn. None of these treatments resulted in significant (95% confidence) yield increases relative to urea in either of the two years.…”

Section: Agricultural Managementmentioning

confidence: 99%

Agricultural Management of Enhanced-Efficiency Fertilizers in the North-Central United States

et al. 2008

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The north‐central United States harvests over 160 million acres of corn, wheat, soybean, and grain sorghum annually as grain or silage. Enhanced‐efficiency fertilizer use in this region may help increase economic returns and reduce negative environmental risks. The objective of this paper is to summarize research in the north‐central US with a focus on management of new technology and fertilizer products such as polymer‐coated urea (PCU) that improve nutrient‐use efficiency. Preplant applications of PCU had median corn grain yields similar to anhydrous ammonia, ammonium nitrate, urea + NBPT, and grain yields greater than urea or urea ammonium nitrate. Research indicates that poorly‐drained soils subject to denitrification and soils with leaching potential may benefit greatest from enhanced‐efficiency fertilizers. Early applications of PCU are needed in wheat. Median wheat grain yield increase over urea was similar for PCU, urea + NBPT, and ammonium nitrate. Medium and high yield environments had the most consistent grain yield responses while variable crop performance with PCU has been related to dry conditions, no‐till production systems, and fertilizer placement. Crop production systems, individual management decisions, economic returns, and availability of government cost‐share will affect the utility and adoption of enhanced‐efficiency fertilizers in this region.

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Section: Agricultural Managementmentioning

confidence: 99%

Agricultural Management of Enhanced-Efficiency Fertilizers in the North-Central United States

et al. 2008

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“…[17][18][19][20] Additionally, NBPT is more efficient in neutral soils with limited organic matter. 17,21 Tropical soils exhibit organic matter and microbial biomass dynamics different from temperate soils. 22 The amendment of soil with organic matter demanded from 2-to 4-fold NBPT to alleviate N volatilization by 20% in comparison to soils devoid of crop residues.…”

Section: Introductionmentioning

confidence: 99%

Urease Inhibitors of Agricultural Interest Inspired by Structures of Plant Phenolic Aldehydes

Horta¹,

Mota²,

Barbosa³

et al. 2016

J. Braz. Chem. Soc.

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The plant phenolic natural products (PNPs) protocatechuic aldehyde, syringaldehyde and vanillin were used as platforms for obtaining four urease inhibitors. Urea (urease substrate) or thiourea (urease inhibitor) core was added to the structure of newly synthesized compounds to provide inhibitors up to 230-fold more active than the PNPs they originated from. The PNP derivatives are mixed inhibitors with higher affinity to urease active site. Two compounds were as efficient as N-(butyl)thiophosphoric triamide (NBPT) toward soil. Overall, PNPs derivatives are promising urease inhibitors for use as additive in urea-based fertilizers formulations.

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“…This conclusion gained further support in a laboratory experiment described by Hendrickson and Douglass (1993). nBTPTA and nBPTA were applied to an acid (PH 4.9) silt loam soil (soil A) and to same soil that had been neutralized (PH 7.1) by longterm liming (soil B) or by recent application of Ca(OHh (soil C).…”

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confidence: 74%

“…The reaction mixture; prepared from 5 g of McCarty et al (1992) soil, 0.2 ml of toluene, and 5 ml of water containing 2 rng ofurea-N and incubated, is treated with 45 ml of2 M KCl containing 1 rngPPDAlI. --cantinueti-For conservation of urea in soil extracts Hendrickson and Douglass (1993) obtained with deionized water (10 ml H20/2 g soil), 0.1 ml of a PPDA solution (0.02 g PPDAlI) is added to 5 ml soil extract.…”

Section: Referencementioning

confidence: 99%

Improving Efficiency of Urea Fertilizers by Inhibition of Soil Urease Activity

Simihăian¹,

Kiss²

2002

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I Preface The purpose of our present work is to review the fundamental studies on inhibition of soil urease activity and the applied studies on improving efficiency of urea fertilizers by inhibition of soil urease activity. The general literature on these topics covers 65 years, and the patent literature comprises a period of nearly 40 years. Studies related to inhibition of soil urease activity were performed in a great number of countries' well representing all the continents. Full texts of the papers describing these studies were published in one of 18 languages·'. The literature data reviewed are structured into 10 chapters, 81 subchapters, and 224 sections. The bibliographical list consists of 830 papers cited. ·In alphabetical order:

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Metabolism of the urease inhibitor n-(n -butyl)thiophosphoric triamide (nbpt) in soils

Cited by 58 publications

References 14 publications

Agricultural Management of Enhanced-Efficiency Fertilizers in the North-Central United States

Agricultural Management of Enhanced-Efficiency Fertilizers in the North-Central United States

Urease Inhibitors of Agricultural Interest Inspired by Structures of Plant Phenolic Aldehydes

Improving Efficiency of Urea Fertilizers by Inhibition of Soil Urease Activity

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