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- Title
Effects of different nitrogen, phosphorous, and potassium fertilization modes on carbon- and nitrogen accumulation and allocation in rice plant.
- Authors
Feng Lei; Tong Cheng-Li; Shi Hui; Wu Jin-Shui; Chen An-Lei; Zhou Ping
- Abstract
Based on a 20-year field site-specific fertilization experiment in Taoyuan Experimental Station of Agriculture Ecosystems under Chinese Ecosystem Research Network ( CERN) , this paper studied the effects of different fertilization modes of N, P, and K on the accumulation and allocation of C and N in rice plant. The fertilization mode N-only showed the highest C and N contents (433 g . kg-1 and 18.9 g . kg-1 , respectively) in rice grain, whereas the modes balanced fertilization of chemical N, P and K ( NPK) and its combination with organic mature recycling ( NPKC) showed the highest storage of C and N in rice plant. In treatments NPK and NPKC, the C storage in rice grain and in stem and leaf was 1960 kg.hm-2 and 2015 kg.hm-2 , and 2002 kg.hm-2 and 2048 kg.hm-2, and the N storage in rice grain was 80. 5 kg.hm-2 and 80. 6 kg.hm-2 , respectively. Treatment NPK had the highest N storage (59. 3 kg · hm-2) in stem and leaf. Balanced fertilization of chemical N, P, and K combined with organic manure recycling increased the accumulation of C and N in rice plant significantly. Comparing with applying N only, balanced fertilization of chemical N, P, and K was more
- Subjects
CHINA; EFFECT of fertilizers on plants; NITROGEN fertilizers; POTASSIUM fertilizers; PHOSPHOROUS acid; RICE; PLANTING
- Publication
Yingyong Shengtai Xuebao, 2011, Vol 22, Issue 10, p2615
- ISSN
1001-9332
- Publication type
Article