| Model simulation of optimal application rate of N, P and K fertilizers for “Xinsiyu 11” silage maize |
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| DOI：10.7606/j.issn.1000-7601.2013.02.08 |
| Key Words: Xinsiyu 11 regression modeling yield optimal fertilization ratio |
| Author Name | Affiliation | | DUAN Zhenyu | Research Institute of Crop Science, Xinjiang Academy of Agro-reclamation Sciences, Shihezi, Xinjiang 832000, China
Key Lab of Xinjiang Production and Construction Corps for Cereal Quality Research and Genetic Improvement, Shihezi, Xinjiang 832000, China | | SANG Zhiqin | Research Institute of Crop Science, Xinjiang Academy of Agro-reclamation Sciences, Shihezi, Xinjiang 832000, China
Key Lab of Xinjiang Production and Construction Corps for Cereal Quality Research and Genetic Improvement, Shihezi, Xinjiang 832000, China | | WANG Ting | Research Institute of Crop Science, Xinjiang Academy of Agro-reclamation Sciences, Shihezi, Xinjiang 832000, China
Key Lab of Xinjiang Production and Construction Corps for Cereal Quality Research and Genetic Improvement, Shihezi, Xinjiang 832000, China | | WANG Youde | Research Institute of Crop Science, Xinjiang Academy of Agro-reclamation Sciences, Shihezi, Xinjiang 832000, China
Key Lab of Xinjiang Production and Construction Corps for Cereal Quality Research and Genetic Improvement, Shihezi, Xinjiang 832000, China | | CHEN Shubin | Research Institute of Crop Science, Xinjiang Academy of Agro-reclamation Sciences, Shihezi, Xinjiang 832000, China
Key Lab of Xinjiang Production and Construction Corps for Cereal Quality Research and Genetic Improvement, Shihezi, Xinjiang 832000, China | | GUO Bin | Research Institute of Crop Science, Xinjiang Academy of Agro-reclamation Sciences, Shihezi, Xinjiang 832000, China
Key Lab of Xinjiang Production and Construction Corps for Cereal Quality Research and Genetic Improvement, Shihezi, Xinjiang 832000, China | | LI Yumei | Research Institute of Crop Science, Xinjiang Academy of Agro-reclamation Sciences, Shihezi, Xinjiang 832000, China
Key Lab of Xinjiang Production and Construction Corps for Cereal Quality Research and Genetic Improvement, Shihezi, Xinjiang 832000, China |
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| Abstract: |
| By using Xinsiyu 11 as material, and adopting 3414 method with different ratios of N-P-K, the experiment was conducted in the experimental field of Xinjiang Academy of Agro-reclamation Sciences to investigate
the effects of N, P and K fertilizers on silage maize, and to screen the optimal application ratio of N-P-K for high yield of silage maize in Xinjiang. The results showed that the content of available N was low, while the content of K2O and P2O5 was moderate in the tested soil. The yield of N2P2K2 was the highest (8066.79 kg·667m-2) among the 14 treatments. According to the analysis of quadratic regression, the fertilizer effect equation was Y=4659.93+79.56N-5.06N2+101.7P-33.81P2+286.4K-10.28K2+24.87NP+2.66NK-12.97PK. Through the optimization of the model, it was found that the optimum fertilization rate for Xinsiyu 11 was 21 kg N, 5 kg P2O5 and 22 kg K2O for every 667 m2, under which the theoretical yield was 7692.96 kg·667m-2. |
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