« Previous Abstract"Characterization of key odorants in Chinese chixiang aroma-type liquor by gas chromatography-olfactometry, quantitative measurements, aroma recombination, and omission studies"    Next AbstractIdentification of an intraspecific alarm pheromone and two conserved odorant-binding proteins associated with (E)-beta-farnesene perception in aphid Rhopalosiphum padi »

Huan Jing Ke Xue

Title:		[Assessment of Gaseous Nitrogen (NH(3) and N(2)O) Mitigation After the Application of a Range of New Nitrogen Fertilizers in Summer Maize Cultivation]
Author(s):		Fan H; Jiang SS; Wei Y; Jiang JY;
Address:		"College of Resource and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China"
Journal Title:		Huan Jing Ke Xue
Year:		2016
Volume:		37
Issue:		8
Page Number:		2906 - 2913
DOI:		10.13277/j.hjkx.2016.08.011
ISSN/ISBN:		0250-3301 (Print) 0250-3301 (Linking)
Abstract:		"In order to evaluate the potential of a range of new nitrogen fertilizers in comparison with the conventional fertilization to mitigate ammonia (NH(3)) and nitrous oxide (N(2)O) emissions, a field experiment was conducted to investigate NH(3) volatilization and N(2)O emissions from the summer maize field and the relevant driving factors under the different nitrogen fertilizer treatments. Five new varieties of nitrogen fertilizers including the urea ammonium (UA), stability urea with dicyandiamide and hydroquinone (UHD), sulfur coated urea (SCU), urea formaldehyde compound fertilizer (UF) and organic fertilizer (OF) were applied in this experiment, and conventional fertilization (compound fertilizer + urea, CK) was used as the control. The nitrogen amount of 300 kg.hm(-2) was applied in all treatments. Correlation analysis results showed that both NH(3) volatilization and N(2)O emissions were influenced by environmental factors. They were negatively correlated with soil water-filled pore space (P<0.05). Moreover, N(2)O emissions were positively correlated with soil nitrate nitrogen (P<0.01). Regression analysis showed that N(2)O emissions were mainly determined by the soil nitrate content, while NH(3) volatilization was mainly dependent on the values of soil ammonium nitrogen. Compared with CK, in addition to UA, other fertilizer treatments decreased the NH(3) volatilization, especially the UF and OF treatments decreased NH(3) volatilization by up to 37%-43%, while all treatments had no significant difference in N(2)O emissions. Considering the total gaseous nitrogen losses (NH(3) volatilization + N(2)O emissions), in comparison with CK, the UHD, SCU, UF and OF were reduced by 9%, 5%, 30% and 23%, respectively, while the UA was increased by 3%. Therefore, considering environmental benefit under this experimental condition,urea formaldehyde compound fertilizer and organic fertilizer were more suitable for maize cultivation"
Keywords:		Agriculture Ammonia/*analysis *Fertilizers Gases/analysis Nitrogen/*chemistry Nitrous Oxide/*analysis Soil Volatilization *Zea mays ammonia volatilization nitrogen fertilizer nitrous oxide emission summer maize;
Notes:		"MedlineFan, Hui Jiang, Shan-Shan Wei, Ying Jiang, Jing-Yan chi China 2016/08/08 Huan Jing Ke Xue. 2016 Aug 8; 37(8):2906-2913. doi: 10.13277/j.hjkx.2016.08.011"