Temperature
days, plot the maximum and minimum temperatures as a function of
depth to 30 cm for a soil with damping depth of 10 cm.
2.4. Using the weather data in the following table, predict the date of
flowering of spring wheat planted on day 119 if flowering requires
900 day-degrees fiomplanting with a base temperature of 3" C. How
much later will flowering occur if planting is delayed to day 150?
day
Tx
Tn
119
5.
-0.6
120 11.7
1.7
121 21.1
4.4
122 18.9
3.3
123 17.8
3.9
124
6.
-1.1
125 10.6 -1.7
126 14.4
1.7
127 17.8
5.6
128 13.9
2.2
129 12.8
2.2
130
6.
-1.7
131 15.
-1.1
132 18.3
5.
133 17.8
2.8
134 21.1
9.4
135 20.6
9.4
136 17.8
7.2
137 21.7 10.
138 15.6
4.4
139 13.9
3.3
140 16.7
5.
141 21.7
5.
142 23.9 10.
143 19.4
5.
144 17.8
5.6
145 23.9
11.1
146 25.
6.7
147 15.
0.
148 12.2
2.8
149 12.2
4.4
150 16.1
3.3
151 18.3
6.7
152 22.2
5.6
day
Tx
Tn
153 18.9
6.1
154 17.8
5.6
155 15.
4.4
156 13.3
6.7
157 14.4
5.6
158 15.6
3.9
159 17.2
1.7
160 20.
6.1
161 23.9
6.1
162 25.6
6.7
163 27.8
8.9
164 19.4 11.7
165 17.2 12.2
166 22.8 10.6
167 27.8 11.1
168 28.3 11.7
169 28.3 12.8
170 28.9
8.9
171 30.6 11.1
172 31.7 13.3
173 26.1 13.9
174 27.8 11.7
175 28.9 14.4
176 29.4 12.2
177 22.2 15.
178 28.9 12.8
179 21.1 11.7
180 14.4 12.2
181 19.4 11.7
182 23.3 13.3
183 16.7
8.3
184 21.1
9.4
185 18.3
7.8
186 18.3
8.3
day
Tx
Tn
187 19.4
6.1
188 22.2 10.6
189 22.2
9.4
190 21.7 12.2
191 25.
10.
192 27.2 11.1
193 28.9 16.1
194 27.2 11.1
195 29.4 12.2
196 18.3
6.1
197 14.4
6.1
198 18.3
3.9
199 23.9 11.1
200 28.3 13.3
201 28.3 12.8
202 30.
13.3
203 26.1
3.9
204 22.8
3.9
205 25.6
5.
206 28.9
9.4
207 31.1 10.6
208 32.2
9.4
209 33.9 15.
210 33.9 13.3
211 34.4 16.1
212 34.4 12.8
213 28.9
8.3
214 22.8
8.9
215 22.2 11.1
216 21.7 11.1
217 24.4
7.8
218 27.8
8.9
219 31.7 11.7