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Table 5 Probability distribution of index grading

From: Research on precision management of farming season based on big data

  Precipitation Sunshine duration Temperature Accumulated temperature
− 2    2  
− 1    60  
0 4150 949 1321 235
1 50 89 651 304
2 21 113 602 959
3 5 154 757 1278
4 3 132 561 355
5 1 169 264 264
6 0 233 14 234
7 0 423   205
8 1 717   177
9 1 435   160
10   399   61
11   263   
12   140   
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