| Optimized planting scheme for Ningya No. 10 flax in rain-fed land of central Ningxia |
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| DOI：10.7606/j.issn.1000-7601.2012.02.23 |
| Key Words: flax mathematical model agronomic programs arid rain-fed |
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| Abstract: |
| Five controllable factors are discussed about their effects on yields and yield and quality characters of Ningya No.10 flax in th
e arid rain fed land in central Ningxia, including sowing rate, farm manure rate, applications of nitrogen, phosphorus and drought-resistant agents, with a five factors quadratic general rotary compose design. A optimized scheme with yields more than 1 200 kg/hm2, oil percentage over 37% and linoleic acid content above 12% is selected by simulating: sowing rate of 46.05 kg/hm2～50.85 kg/hm2, farm manure application of 21.50 t/hm2～24.96 t/hm2, pure nitrogen and phosphorus(P2O5) applications of 84.45 kg/hm2～91.95 kg/hm2 and 55.65 kg/hm2～62.70 kg/hm2, and spraying drought resistant agent two or three times. |
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