Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2014, Vol. 30 ›› Issue (36): 37-41.doi: 10.11924/j.issn.1000-6850.2014-1549

Special Issue: 小麦

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Effects of Nitrogen Fertilizer Regulation with Straw-return on Wheat Yield and Potassium Forms

Dong Liang, Sun Zeqiang, Wang Xuejun, Dong Xiaoxia, Guo Honghai,Zheng Dongfeng, Ma Zheng   

  1. (Institute of Agricultural Resources and Environment, Shandong Academy of Agricultural Science/Key Laboratory of Agro-environment in Huanghuaihai Plain, Ministry of Agriculture/Scientific Observing and Experimental Station of Arable Land Conservation (Shandong), Ministry of Agriculture /Shandong Provincial Key Laboratory of Plant Nutrition and Fertilizer, Jinan 250100)
  • Received:2014-05-30 Revised:2015-01-12 Accepted:2014-06-27 Online:2015-03-20 Published:2015-03-20

Abstract: In order to study the effects of nitrogen fertilizer regulation with straw-return on wheat yield and potassium forms, field experiment was arranged in Pinyuan County. The results indicated that, nitrogen fertilizer regulation with straw-return could affect the wheat yield and potassium forms. The highest yield of wheat was obtained with nitrogen dressing ratio 7:3 and 6:4. As to the potassium forms, the content of water-soluble potassium, exchangeable potassium and total potassium were the highest with nitrogen dressing ratio 7:3 and 6:4, and the difference of non-exchangeable potassium were not significant among all treatments. Under the experiment condition, nitrogen dressing ratio 7:3 and 6:4 were the best treatments, they could increase the wheat yield and soil total potassium and available potassium content.