Rate of nitrapyrin and soil ph effects on nitrification of ammonium fertilizer and growth and composition of burley tobacco

Sims, J. L.; MacKown, Charles T.

doi:10.1080/00103628709367912

Cited by 4 publications

(3 citation statements)

References 17 publications

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“…The concentrations of NO 3 − -N in the soils of urea + nitrapyrin treatment across the pH gradient at day 28 were lower than those in the soils of urea treatment at corresponding pH levels, and the net nitrification rates in the soils of urea + nitrapyrin treatment across the pH gradient were also lower than those in the soils of urea treatment (Table 1), indicating that nitrapyrin inhibited nitrification and its inhibitory effect varied with soil pH. This is consistent with the finding reported previously (Hall 1984; Chancy and Kamprath 1982; Degenhardt et al 2016; Sims and MacKown 1987; Touchton et al 1979; Hendrickson and Keeney 1979). For example, (Hendrickson and Keeney 1979) found that the inhibitory efficiency of nitrapyrin increased with soil pH.…”

Section: Discussionsupporting

confidence: 90%

pH rather than nitrification and urease inhibitors determines the community of ammonia oxidizers in a vegetable soil

Long

Huang

et al. 2017

AMB Expr

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Nitrification inhibitors and urease inhibitors, such as nitrapyrin and N-(n-butyl) thiophosphoric triamide (NBPT), can improve the efficiencies of nitrogen fertilizers in cropland. However, their effects on ammonia-oxidizing archaea (AOA) and ammonia-oxidizing bacteria (AOB) across different soil pH levels are still unclear. In the present work, vegetable soils at four pH levels were tested to determine the impacts of nitrification and urease inhibitors on the nitrification activities, abundances and diversities of ammonia oxidizers at different pHs by real-time PCR, terminal restriction fragment length polymorphism (T-RFLP) and clone sequence analysis. The analyses of the abundance of ammonia oxidizers and net nitrification rate suggested that AOA was the dominate ammonia oxidizer and the key driver of nitrification in acidic soil. The relationships between pH and ammonia oxidizer abundance indicated that soil pH dominantly controlled the abundance of AOA but not that of AOB. The T-RFLP results suggested that soil pH could significantly affect the AOA and AOB community structure. Nitrapyrin decreased the net nitrification rate and inhibited the abundance of bacterial amoA genes in this vegetable soil, but exhibited no effect on that of the archaeal amoA genes. In contrast, NBPT just lagged the hydrolysis of urea and kept low NH4 +-N levels in the soil at the early stage. It exhibited no or slight effects on the abundance and community structure of ammonia oxidizers. These results indicated that soil pH, rather than the application of urea, nitrapyrin and NBPT, was a critical factor influencing the abundance and community structure of AOA and AOB.Electronic supplementary materialThe online version of this article (doi:10.1186/s13568-017-0426-x) contains supplementary material, which is available to authorized users.

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Section: Discussionsupporting

confidence: 90%

pH rather than nitrification and urease inhibitors determines the community of ammonia oxidizers in a vegetable soil

Long

Huang

et al. 2017

AMB Expr

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“…Previous research indicated the NI would function at least 91 d under the conditions of these experiments (Kelley and Bock, 1986). At the concentration applied, the NI is not itself beneficial to plant growth (Geronimo et al, 1973;Sims and MacKown, 1987); therefore, plant response to the + NI treatments was ascribed to the effects of the NI on soil-NH 4 concentrations.…”

Section: Soil Nitrogenmentioning

confidence: 99%

Spring Wheat Response to Enhanced Ammonium Supply: I. Dry Matter and Nitrogen Content

Camberato

Bock

1990

Agronomy Journal

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Spring wheat (Triticum aestivum L.) grain dry matter (DM) has been increased in previous greenhouse experiments through the use of a nitrification inhibitor (NI), which provides an enhanced ammonium supply (EAS). The objective of this research was to determine, under greenhouse conditions, the effect of EAS on the accumulation and partitioning of DM and N at several stages of plant development and on the yield components (heads plant−1, kernels head−1, and kernel weight). Enhanced NH4 supply increased plant DM at 18 d after plant emergence, boot stage, 7 d after anthesis, and maturity. Enhanced NH4 supply did not alter the relative partitioning of DM among leaf, stem, and grain at any stage of development. Effects of EAS on plant and grain DM at maturity increased with increasing N rate. At the highest N rates, grain DM was increased 18 and 6% in two experiments. Nitrogen and moisture stress appeared to alter grain DM response to EAS. Increased grain DM was associated with an increased number of heads plant−1. Kernels head−1 were decreased with EAS, but kernel weight was not affected. Consequently, EAS increased heads plant−1 more than grain DM. At growth stages prior to maturity, EAS increased plant N uptake. At maturity, plant N uptake was slightly and inconsistently affected by EAS; however, the proportion of plant N in the grain was increased by EAS. This indicated a greater translocation of N from the stem to the grain with EAS. In general, increased spring wheat grain DM is associated with proportional increases in plant DM throughout plant development, but not necessarily with proportional increases in plant N uptake. Heads plant−1 is the only yield component increased positively by EAS and thus warrants further research.

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“…The application of NO3 source of N fertilizer or low rates of nitrapyrin (<2.24 kg ha" 1 ) to Maury soil in the field decreased surface soil acidification and concentration of plant Mn, but increased plant dry weight early in the growing season. The magnitude of treatment effects was not as great on any measured parameter as had been noted earlier in greenhouse tests 11 . However, the results were in the positive direction and it may be speculated that more dramatic results could have occurred on a soil of lower initial pH and less buffering capacity.…”

Section: Effects On Cured Leaf Yield and Valuementioning

confidence: 65%

Effect of rate of nitrapyrin and source of N on soil pH and response of burley tobacco

Sims

MacKown

1988

Communications in Soil Science and Plant Analysis

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A field experiment was conducted on Maury silt loam soil (Typic Paleudalf) during 2 years to determine the effects of rate of nitrapyrin and source of N fertilizer on soil pH and response of burley tobacco (Nicotiana tabacum L. cv. x Ky-14'). All sources of N were applied at the rate of 280 kg N ha -1 . The information was needed to increase the efficiency of N fertilizer use and improve the growth and safety of tobacco. Results indicated that application of a NO3 -source of N fertilizer or low rates of nitrapyrin (0.56 1614 SIMS AND MAC KOWN to 2.24 kg ha -1 ) decreased surface soil acidification and the concentration of plant Mn, while plant dry weight early in the growing season was increased. The early growth benefits noted for .nitrapyrin did not lead to increased cured leaf yields or value. Cured leaf yield and value were highest in plots receiving Ca(NO 3 ) 2 , followed by KH 4 NO 3 , then urea. Concentration of protein N, total alkaloids, and total volatile nitrogenous bases of cured leaves increased and NO 3 --N decreased as rate of nitrapyrin increased. Total N concentration of cured leaf, however, was not significantly affected by nitrapyrin application, indicating that the proportion of absorbed N as NH 4 + increased as nitrapyrin rate increased.

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Rate of nitrapyrin and soil ph effects on nitrification of ammonium fertilizer and growth and composition of burley tobacco

Cited by 4 publications

References 17 publications

pH rather than nitrification and urease inhibitors determines the community of ammonia oxidizers in a vegetable soil

pH rather than nitrification and urease inhibitors determines the community of ammonia oxidizers in a vegetable soil

Spring Wheat Response to Enhanced Ammonium Supply: I. Dry Matter and Nitrogen Content

Effect of rate of nitrapyrin and source of N on soil pH and response of burley tobacco

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