Regulating CH4, N2O, and NO emissions from an alkaline paddy field under rice–wheat rotation with controlled release N fertilizer

2021 ◽  
Author(s):  
Ting Lan ◽  
Heng Zhang ◽  
Yong Han ◽  
Ouping Deng ◽  
Xiaoyan Tang ◽  
...  
Keyword(s):  
Controlled Release ◽  
Paddy Field ◽  
N Fertilizer ◽  
No Emissions

Composition of Archaeal Community in a Paddy Field as Affected by Rice Cultivar and N Fertilizer

2009 ◽  
Vol 58 (4) ◽  
pp. 819-826 ◽  
Author(s):  
Liqin Wu ◽  
Ke Ma ◽  
Qi Li ◽  
Xiubin Ke ◽  
Yahai Lu
Keyword(s):  
Paddy Field ◽  
Archaeal Community ◽  
Rice Cultivar ◽  
N Fertilizer

scholarly journals Properties of controlled-release formulation of pyrimisulfan as a one-shot herbicide in a paddy field

2012 ◽  
Vol 37 (1) ◽  
pp. 62-68 ◽  
Author(s):  
Sohei Asakura ◽  
Manabu Hiraoka ◽  
Toshio Sugimura ◽  
Takumi Yoshimura ◽  
Masao Nakatani ◽  
...  
Keyword(s):  
Controlled Release ◽  
Paddy Field ◽  
Release Formulation ◽  
Controlled Release Formulation

scholarly journals Runoff loss of nitrogen and phosphorus from a rice paddy field in the east of China: Effects of long-term chemical N fertilizer and organic manure applications

2020 ◽  
Vol 22 ◽  
pp. e01011 ◽  
Author(s):  
Naxin Cui ◽  
Min Cai ◽  
Xu Zhang ◽  
Ahmed A. Abdelhafez ◽  
Li Zhou ◽  
...  
Keyword(s):  
Paddy Field ◽  
Rice Paddy ◽  
Organic Manure ◽  
N Fertilizer ◽  
Nitrogen And Phosphorus ◽  
Rice Paddy Field

scholarly journals N2O and NO Emissions as Affected by the Continuous Combined Application of Organic and Mineral N Fertilizer to a Soil on the North China Plain

Agronomy ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1965
Author(s):  
Deyan Liu ◽  
Heyang Sun ◽  
Xia Liao ◽  
Jiafa Luo ◽  
Stuart Lindsey ◽  
...  
Keyword(s):  
Mineral Fertilizer ◽  
N Fertilizer ◽  
Chicken Manure ◽  
Pig Manure ◽  
N2o Emissions ◽  
Fertilizer N ◽  
Mineral N ◽  
The North ◽  
Combined Application ◽  
No Emissions

A field experiment was conducted to evaluate the influence of the continuous application of organic and mineral N fertilizer on N2O and NO emissions under maize and wheat rotation on the North China Plain. This study included eight treatments: no fertilizer (control); mineral N fertilizer (Nmin) at a rate of 200 kg N ha−1 per season; 50% mineral fertilizer N plus 50% cattle manure N (50% CM), 50% chicken manure N (50% FC) or 50% pig manure N (50% FP); 75% mineral fertilizer N plus 25% cattle manure N (25% CM), 25% chicken manure N (25% FC) or 25% pig manure N (25% FP). The annual N2O and NO emissions were 2.71 and 0.39 kg N ha−1, respectively, under the Nmin treatment, with an emission factor of 0.50% for N2O and 0.07% for NO. Compared with the Nmin treatment, N2O emissions did not differ when 50% of the mineral N was replaced with manure N (50% CM, 50% FC and 50% FP), while annual NO emissions were significantly reduced by 49.0% and 27.8% under 50% FC and 50% FP, respectively. In contrast, annual N2O emissions decreased by 21–38% compared to the Nmin treatment when 25% of the mineral N was replaced with manure N (25% CM, 25% FC and 25% FP). Most of the reduction occurred during the maize season. The 25% CM, 25% FC and 25% FP treatments had no effect on NO emissions compared to the Nmin treatment. There was no obvious difference in annual N2O and NO emissions among the organic manures at the same application rate, probably due to their similar C/N ratio. Replacing a portion of the mineral fertilizer N with organic fertilizer N did not significantly affect crop grain yield, except for the 50% FC treatment in the wheat season. Overall, the results suggest that the combined application of 25% organic manure N plus 75% mineral fertilizer N had the most potential to mitigate N2O emissions while not affecting crop yield in the maize and wheat rotation system in this area of China.

Nutrient availability and response of sago palm (Metroxylon sagoRottb.) to controlled release N fertilizer on coastal lowland peat in the tropics

2002 ◽  
Vol 48 (4) ◽  
pp. 529-537 ◽  
Author(s):  
Benito Heru Purwanto ◽  
Ken-ichi Kakuda ◽  
Ho Ando ◽  
Jong Foh Shoon ◽  
Yoshinori Yamamoto ◽  
...  
Keyword(s):  
Controlled Release ◽  
Nutrient Availability ◽  
N Fertilizer ◽  
Sago Palm ◽  
Coastal Lowland ◽  
The Tropics

scholarly journals Effect of Nitrogen Fertilization Rate on Aesthetic Quality of Landscape-grown Vines and Groundcovers

2014 ◽  
Vol 24 (5) ◽  
pp. 604-609 ◽  
Author(s):  
Amy L. Shober ◽  
Kimberly A. Moore ◽  
Gitta S. Hasing ◽  
Christine Wiese ◽  
Geoffrey C. Denny ◽  
...  
Keyword(s):  
Controlled Release ◽  
Fertilization Rate ◽  
N Fertilization ◽  
N Fertilizer ◽  
Aesthetic Quality ◽  
Controlled Release Fertilizer ◽  
Central Florida ◽  
West Central ◽  
Quality Response

Research supporting recommendations for fertilizer needs of landscape-grown vines and groundcovers is lacking. The objectives of our study were to (1) evaluate the quality response of selected vine and groundcover species to nitrogen (N) fertilization at five rates and (2) validate the recommended N fertilizer rates (from the initial evaluation) by monitoring quality of additional landscape-grown vine and groundcover species. Three vine species and two groundcover species were planted in west-central Florida into raised beds containing subsoil fill material in a completely randomized design. Plants were fertilized every 6 weeks with a controlled release fertilizer (20N–0P–0K–23S) at an annual N rate of 0, 2, 4, 6, or 12 lb/1000 ft2. Plant aesthetic quality (0–5 scale) was assessed every 6 weeks for 30 weeks after planting. Although quality of some species increased significantly as N rate increased, all plants supplied with at least 4 lb/1000 ft2 per year N fertilizer had acceptable quality ratings of 3 or better. Screening of three additional vines and four additional groundcovers fertilized with controlled release fertilizer (42N–0P–0K) at an annual N rate of 3, 5, or 7 lb/1000 ft2 confirmed that fertilization with 2 to 4 lb/1000 ft2 per year should be adequate to maintain acceptable vines and groundcovers grown in the landscape in west-central Florida.

scholarly journals Long-term Response of `Hamlin' Orange Trees to Controlled-release Nitrogen Fertilizers

HortScience ◽  
2006 ◽  
Vol 41 (2) ◽  
pp. 423-426 ◽  
Author(s):  
Thomas A. Obreza ◽  
Robert E. Rouse
Keyword(s):  
Controlled Release ◽  
Management Practice ◽  
N Fertilizer ◽  
Water Soluble ◽  
Soluble Solids ◽  
Nitrogen Fertilizers ◽  
Juice Quality ◽  
Citrus Production ◽  
High Yields

Controlled-release N (CRN) fertilizer is receiving interest as a possible nutrient best management practice (BMP) for Florida citrus production, but grower acceptance will be limited until cost decreases and familiarity with CRN materials increases. The objective of this study was to compare long-term citrus production resulting from N fertilizer programs containing isobutylidene diurea (IBDU) or methylene urea (MU) with a conventional water-soluble N fertilizer program to determine the magnitude of horticultural utility provided by CRN. We applied N to a newly planted `Hamlin' orange (Citrus sinensis L. Osbeck) orchard using three sources (100% ammonium nitrate (AN); a 50/50 mixture of AN/IBDU; a 60/40 mixture of AN/MU) at four rates (0.25, 0.5, 1.0, and 2.0 or 1.5 times the recommended annual rate) in factorial combination, and continued for 7 years. During this period, AN was applied 31 times vs. about 15 times for CRN-containing fertilizers. We measured fruit yield, juice quality, and total soluble solids (TSS) yield in years 4 through 7 and found that they generally were not affected by N source, especially when year-to-year variation was taken into account. In year 7, fruit and TSS yields of well-fertilized trees reached 153 and 9.2 kg/tree, respectively. Maximum 4-year cumulative fruit and TSS yields (486 and 27.6 kg/tree, respectively) occurred at an N rate of 200 kg/ha. Maximum juice quality occurred at 180 kg N/ha. We feel the CRN materials tested could be used successfully in a nutritional BMP program that would maintain high yields while potentially decreasing N loss to the environment.

scholarly journals Fertilization of Young `Hamlin' Orange Trees with Controlled-release Fertilizer

HortScience ◽  
1995 ◽  
Vol 30 (4) ◽  
pp. 774A-774
Author(s):  
J.J. Ferguson ◽  
F.S. Davies
Keyword(s):  
Controlled Release ◽  
Tree Height ◽  
Leaf Nitrogen ◽  
N Fertilizer ◽  
Water Soluble ◽  
Slight Reduction ◽  
Leaf Nitrogen Content ◽  
Controlled Release Fertilizer ◽  
Trunk Diameter ◽  
Orange Trees

Young `Hamlin' orange trees [Citrus sinensis (L.) Osbeck] were fertilized six times/year with water-soluble N fertilizer at recommended rates (0.20, 0.34, and 0.38 kg N/tree per year) and with controlled-release fertilizer one time/year [Osmocote, IDBU, and a 44.5% urea-N fertilizer coated with a sulfonated ethylene-propylene-diene polymer (Sherritt, Inc.)] at 0.04, 0.06, and 0.08 kg N/tree per year for years 1, 2, and 3, respectively. There were no differences in trunk diameter, tree height, or tree rating among treatments in any year, although there was a slight reduction in tree rating for some trees with biuret symptoms in the Sherritt treatment in year 2. Leaf nitrogen content was acceptable for all treatments in all 3 years, except for the Osmocote treatment in year 2, which had low to deficient levels. Levels of other nutrients were all within acceptable ranges, except for low potassium levels for the Osmocote in year 2. There were no significant differences in yields of young trees in year 3, the first bearing year. Given its 44.5% N analysis, the total amount of Sherritt controlled-release fertilizer applied to young citrus trees was 4% that of the standard, water-soluble fertilizer and from 39% to 45% that of the two other controlled-release fertilizers in years 1, 2, and 3.

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