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- Title
EFFECT OF SILICON ON CROP YIELD, AND NITROGEN USE EFFICIENCY APPLIED UNDER STRAW RETURN TREATMENTS.
- Authors
MABAGALA, F. S.; GENG, Y. H.; CAO, G. J.; WANG, L. C.; WANG, M.; ZHANG, M. L.
- Abstract
Nitrogen (N) is an essential element for crop growth and for improving crop yield. A two-year field experiment was carried out in China to test the effects of silicate (Si) fertilizer with straw return on N use efficiency (NUE) and yield of spring maize. Four treatments were arranged in a randomized block design: SI+ST (straw return + 45 kg ha-1 Si), SI (no straw return + 45 kg ha-1 Si), ST (straw return + no Si) and C (no straw return + no Si). The results showed that the accumulation of dry matter and grain yield under SI were 6.5% and 8.8% higher, respectively than those under the C. The N uptake under SI increased by 15.6% compared with that under the C treatment. The N uptake of SI+ST increased by 7.6% compared to SI. The SI+ST resulted in a significant increase in the AEN, REN, and PFPN compared with SI. The above results show that the use of Si fertilizer combined with straw return significantly provides better N for maize growing stages and is recommended as an alternative method to simultaneously increase crop yield and NUE while reducing the use of chemical fertilizer to the environment.
- Subjects
CHINA; CROP yields; STRAW; CROP growth; FERTILIZERS; GRAIN yields
- Publication
Applied Ecology & Environmental Research, 2020, Vol 18, Issue 4, p5577
- ISSN
1589-1623
- Publication type
Article
- DOI
10.15666/aeer/1804_55775590