![Long-term application of organic manure and nitrogen fertilizer on N"2O emissions, soil quality and crop production in a sandy loam soil [An article from: Soil Biology and Biochemistry]](https://www.ebooknetworking.net/books/B00/0RR/bigB000RR6TRY.jpg)
Long-term application of organic manure and nitrogen fertilizer on N"2O emissions, soil quality and crop production in a sandy loam soil [An article from: Soil Biology and Biochemistry]
Book Details
Author(s)L. Meng, W. Ding, Z. Cai
PublisherElsevier
ISBN / ASINB000RR6TRY
ISBN-13978B000RR6TR4
AvailabilityAvailable for download now
MarketplaceUnited States 🇺🇸
Description
This digital document is a journal article from Soil Biology and Biochemistry, published by Elsevier in . The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
A long-term field experiment was established to determine the influence of mineral fertilizer (NPK) or organic manure (composed of wheat straw, oil cake and cottonseed cake) on soil fertility. A tract of calcareous fluvo-aquic soil (aquic inceptisol) in the Fengqiu State Key Experimental Station for Ecological Agriculture (Fengqiu county, Henan province, China) was fertilized beginning in September 1989 and N"2O emissions were examined during the maize and wheat growth seasons of 2002-2003. The study involved seven treatments: organic manure (OM), half-organic manure plus half-fertilizer N (1/2 OMN), fertilizer NPK (NPK), fertilizer NP (NP), fertilizer NK (NK), fertilizer PK (PK) and control (CK). Manured soils had higher organic C and N contents, but lower pH and bulk densities than soils receiving the various mineralized fertilizers especially those lacking P, indicating that long-term application of manures could efficiently prevent the leaching of applied N from and increase N content in the plowed layer. The application of manures and fertilizers at a rate of 300kgNha^-^1year^-^1 significantly increased N"2O emissions from 150gN"2O-Nha^-^1year^-^1 in the CK treatment soil to 856gN"2O-Nha^-^1year^-^1 in the OM treatment soil; however, there was no significant difference between the effect of fertilizer and manure on N"2O emission. More N"2O was released during the 102-day maize growth season than during the 236-day wheat growth season in the N-fertilized soils but not in N-unfertilized soils. N"2O emission was significantly affected by soil moisture during the maize growth season and by soil temperature during the wheat growth season. In sum, this study showed that manure added to a soil tested did not result in greater N"2O emission than treatment with a N-containing fertilizer, but did confer greater benefits for soil fertility and the environment.
Description:
A long-term field experiment was established to determine the influence of mineral fertilizer (NPK) or organic manure (composed of wheat straw, oil cake and cottonseed cake) on soil fertility. A tract of calcareous fluvo-aquic soil (aquic inceptisol) in the Fengqiu State Key Experimental Station for Ecological Agriculture (Fengqiu county, Henan province, China) was fertilized beginning in September 1989 and N"2O emissions were examined during the maize and wheat growth seasons of 2002-2003. The study involved seven treatments: organic manure (OM), half-organic manure plus half-fertilizer N (1/2 OMN), fertilizer NPK (NPK), fertilizer NP (NP), fertilizer NK (NK), fertilizer PK (PK) and control (CK). Manured soils had higher organic C and N contents, but lower pH and bulk densities than soils receiving the various mineralized fertilizers especially those lacking P, indicating that long-term application of manures could efficiently prevent the leaching of applied N from and increase N content in the plowed layer. The application of manures and fertilizers at a rate of 300kgNha^-^1year^-^1 significantly increased N"2O emissions from 150gN"2O-Nha^-^1year^-^1 in the CK treatment soil to 856gN"2O-Nha^-^1year^-^1 in the OM treatment soil; however, there was no significant difference between the effect of fertilizer and manure on N"2O emission. More N"2O was released during the 102-day maize growth season than during the 236-day wheat growth season in the N-fertilized soils but not in N-unfertilized soils. N"2O emission was significantly affected by soil moisture during the maize growth season and by soil temperature during the wheat growth season. In sum, this study showed that manure added to a soil tested did not result in greater N"2O emission than treatment with a N-containing fertilizer, but did confer greater benefits for soil fertility and the environment.
