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Long‐term fertilization effects on crop yield and desalinized soil properties
Author(s) -
Li Xiaoguang,
liu Xiuping,
Liu Xiaojing
Publication year - 2020
Publication title -
agronomy journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 131
eISSN - 1435-0645
pISSN - 0002-1962
DOI - 10.1002/agj2.20338
Subject(s) - agronomy , fertilizer , manure , soil fertility , crop yield , human fertilization , crop rotation , soil carbon , environmental science , long term experiment , soil water , ammonium nitrate , phosphorus , nitrogen , nutrient , crop , chemistry , soil science , biology , organic chemistry
The effects of long‐term fertilization on crop yield and soil property in maize ( Zea mays L.)–wheat ( Triticum aestivum L.) rotation of desalinized soils are limited. A long‐term fertilization experiment was established in 1996 to compare the impact of single and mixed mineral (NPK), and manure fertilization on crop yields and soil properties. The long‐term application of manure (OF) and N fertilizer significantly increased crop yields by the 129 and 42% of yield increase, respectively, over other chemical fertilizer application. Nitrogen fertilizer increased soil surface nitrate nitrogen (NO 3 − –N) while not affecting soil ammonium nitrogen (NH 4 + –N). Organic fertilizer significantly increased soil organic carbon (SOC, increased 68.7%), available phosphorus (AP, 97.4%), and available potassium (AK, 68.5%) compared with chemical fertilizer application. Inorganic fertilizer application has less impact on microbial community composition than manure. A complete NPK plus manure fertilization program is recommended for desalinized soils around the Bohai Sea to maximize crop yields and improve soil fertility.