宁城基地 Crop Model Report

宁城7号棚

(2026-02-24 06:05:47)

Summary

温室
P7
报告日期
2026-02-24
作物
番茄
品种
天香
栽培方式
土壤栽培
种植密度
3.1 (株/平米)
定植日期
2025-10-17
结束日期
2026-04-30
株龄
130
发育期
预采期
叶数：
27
比叶面积
2.4
穗数
6
预计产量
9.5 (公斤/株)
最近发生
-5天: 穗1转色,穗3坐果结束
-4天: 穗3绿熟
-3天: 穗5盛花
+1天: 穗1坚熟开始
+5天: 穗1采果,穗4绿熟
+6天: 穗2转色,穗6盛花
+9天: 穗4坐果结束

Crop Model Prediction Table

节点日期 节点名称 节点株龄 predDAT obsDAT
2025-10-25 叶6展开 8.00 8.00 NaN
2025-10-26 叶7展开 9.00 9.00 NaN
2025-10-27 叶8展开 10.00 10.00 NaN
2025-10-27 穗1现蕾 10.00 10.00 NaN
2025-10-29 叶9展开 12.00 12.00 NaN
2025-10-31 生殖生长 14.00 14.00 NaN
2025-11-05 叶10展开 19.00 19.00 NaN
2025-11-07 穗2现蕾 21.00 21.00 NaN
2025-11-08 叶11展开 22.00 22.00 NaN
2025-11-10 初花期 24.00 24.00 NaN
2025-11-10 穗1开花 24.00 24.00 NaN
2025-11-11 叶12展开 25.00 25.00 NaN
2025-11-15 叶13展开 29.00 29.00 NaN
2025-11-17 结果前期 31.00 31.00 NaN
2025-11-17 穗1坐果开始 31.00 31.00 NaN
2025-11-18 穗3现蕾 32.00 32.00 NaN
2025-11-18 叶14展开 32.00 32.00 NaN
2025-11-21 穗2开花 35.00 35.00 NaN
2025-11-22 叶15展开 36.00 36.00 NaN
2025-11-26 叶16展开 40.00 40.00 NaN
2025-11-29 穗2坐果开始 43.00 43.00 NaN
2025-11-30 穗4现蕾 44.00 44.00 NaN
2025-12-01 叶17展开 45.00 45.00 NaN
2025-12-02 结果中期 46.00 46.00 NaN
2025-12-05 叶18展开 49.00 49.00 NaN
2025-12-07 穗3开花 51.00 51.00 NaN
2025-12-11 叶19展开 55.00 55.00 NaN
2025-12-15 穗5现蕾 59.00 59.00 NaN
2025-12-18 穗3坐果开始 62.00 62.00 NaN
2025-12-27 结果后期 71.00 71.00 NaN
2025-12-29 穗4开花 73.00 73.00 NaN
2025-12-30 穗6现蕾 74.00 74.00 NaN
2026-01-07 穗4坐果开始 82.00 82.00 NaN
2026-01-15 穗5开花 90.00 90.00 NaN
2026-01-27 穗5坐果开始 102.00 102.00 NaN
2026-01-31 穗6开花 106.00 106.00 NaN
2026-02-08 穗6坐果开始 114.00 114.00 NaN
2026-02-19 穗1转色 125.00 125.00 NaN
2026-02-19 预采期 125.00 125.00 NaN
2026-03-01 穗1采果 135.00 135.00 NaN
2026-03-02 穗2转色 136.00 136.00 NaN
2026-03-10 采收期 144.00 144.00 NaN
2026-03-11 穗2采果 145.00 145.00 NaN
2026-03-12 穗3转色 146.00 146.00 NaN
2026-03-19 穗4转色 153.00 153.00 NaN
2026-03-20 穗3采果 154.00 154.00 NaN
2026-03-26 穗5转色 160.00 160.00 NaN
2026-03-27 穗4采果 161.00 161.00 NaN
2026-04-01 穗6转色 166.00 166.00 NaN
2026-04-03 穗5采果 168.00 168.00 NaN
2026-04-08 穗6采果 173.00 173.00 NaN


农事操作

农事日期 农事类型 农事名称 节点株龄 predDAT obsDAT
2025-10-31 农事操作 落秧 14.00 14.00 NaN
2025-11-10 农事操作 吊蔓 24.00 24.00 NaN
2026-01-11 农事操作 打顶 86.00 86.00 NaN
2025-10-24 病虫害管理 预防早疫病、晚疫病 7.00 7.00 NaN
2025-11-10 病虫害管理 防治早疫病、晚疫病、叶霉病 24.00 24.00 NaN
2025-11-28 病虫害管理 防治晚疫病、早疫病 42.00 42.00 NaN
2025-12-11 病虫害管理 防治灰霉病、叶霉病、白粉病 55.00 55.00 NaN
2026-01-17 病虫害管理 防治晚疫病、霜霉病 92.00 92.00 NaN
2026-02-19 病虫害管理 防治灰霉病、叶霉病、白粉病 125.00 125.00 NaN
2026-03-10 病虫害管理 防治早疫病、晚疫病 144.00 144.00 NaN
2025-11-10 水肥管理 番茄第一阶段初花期 24.00 24.00 NaN
2025-11-17 水肥管理 番茄第二阶段水肥方案 31.00 31.00 NaN
2025-12-02 水肥管理 番茄第三阶段水肥方案 46.00 46.00 NaN
2025-12-27 水肥管理 番茄第四阶段水肥方案 71.00 71.00 NaN
2026-02-19 水肥管理 番茄第五阶段水肥方案 125.00 125.00 NaN



环控决策

预计今天开棚时间

株龄 开棚时间 开时室内温度 开时室外温度 开时土壤温度 开时总光照 设定室内最低温度 开棚所需总光照 日出
130 7:30 9.80 -12.80 14.60 157.50 10.00 144.90 6:46


预计今天关棚时间

株龄 关棚时间 关棚程度 关时室温 关时室外温度 关时土壤温度 关时总光照 室外预计最低温度 室内设定最适夜温 室内设定最低夜温 日落
130 16:25 100 25 1 18 787 -11 18 10 17:47


Historical Quilt Decision Summary

Quilt Open

d o_Hr o_obsHr sunriseHr o_T o_Ts o_To o_I o_Tmin o_Imin
110 8:00 7:50 7:12 9.70 13.70 -6.50 84.00 10.00 80.70
111 8:10 8:20 7:11 8.90 13.50 -11.40 126.60 10.00 117.80
112 8:25 8:05 7:10 5.00 12.10 -19.40 148.10 7.00 147.20
113 8:15 8:05 7:09 7.80 11.70 -17.60 162.90 10.00 147.40
114 8:10 7:50 7:08 7.90 12.20 -15.00 141.60 10.00 130.40
115 7:55 7:30 7:07 8.90 13.10 -6.50 106.20 10.00 87.10
116 7:50 7:55 7:05 9.60 13.90 -4.90 71.30 10.00 68.80
117 7:50 7:50 7:04 9.10 13.40 -7.00 91.00 10.00 86.90
118 7:50 7:55 7:03 8.80 13.20 -6.70 96.80 10.00 89.80
119 7:40 7:55 7:02 9.50 13.50 -2.40 68.90 10.00 60.00
120 7:30 7:20 7:00 9.20 14.20 3.90 36.40 10.00 28.60
121 7:45 7:25 6:59 9.60 13.70 -6.70 94.00 10.00 90.40
122 7:55 7:45 6:58 9.40 13.00 -9.60 130.20 10.00 116.40
123 7:50 8:10 6:56 9.00 13.20 -6.00 121.00 10.00 107.40
124 7:50 7:50 6:55 9.60 13.60 -6.40 117.90 10.00 113.30
125 7:40 7:15 6:54 9.70 14.00 -3.50 96.40 10.00 86.30
126 7:10 7:40 6:52 11.70 14.90 0.20 48.50 10.00 47.50
127 7:10 7:25 6:51 12.30 15.50 1.70 29.90 10.00 29.50
128 7:45 7:20 6:49 9.60 14.50 -7.00 132.30 10.00 125.70
129 7:40 7:30 6:48 8.90 13.60 -10.10 153.10 10.00 152.80

Quilt Close

d v_Hr v_Pct q_Hr q_Pct q_obsHr sunsetHr c_T c_To c_Ts c_I c_T_low c_obsT_low c_To_low
110 17:22 100 16:35 100 16:50 17:22 18 3 17 90 10 10 -11
111 17:23 100 16:25 100 16:50 17:23 17 -7 17 220 10 7 -22
112 17:25 100 16:25 100 16:50 17:25 18 -8 17 235 10 7 -21
113 17:26 100 17:00 100 16:30 17:26 17 -7 16 121 10 7 -19
114 17:27 100 17:05 100 16:35 17:27 18 1 16 83 10 9 -11
115 17:29 100 17:24 100 16:50 17:29 14 5 16 15 10 11 -3
116 17:30 100 16:15 100 17:20 17:30 26 4 16 810 10 9 -11
117 17:31 100 16:01 100 17:30 17:31 16 5 17 133 10 9 -7
118 17:32 100 16:25 100 17:25 17:32 18 10 16 172 10 10 -6
119 17:34 100 18:30 100 17:25 17:34 24 14 15 794 10 10 0
120 17:35 100 16:40 100 17:20 17:35 18 7 17 174 10 10 -8
121 17:36 100 16:50 100 17:25 17:36 18 0 17 211 10 9 -14
122 17:37 100 16:50 100 17:15 17:37 18 7 17 214 10 9 -9
123 17:39 100 16:55 100 17:10 17:39 18 8 17 135 10 10 -8
124 17:40 100 17:35 100 17:20 17:40 16 6 17 23 10 11 -3
125 17:41 100 17:36 100 17:35 17:41 15 8 17 24 10 12 -4
126 17:42 100 17:37 100 17:35 17:42 15 12 18 25 10 13 1
127 17:44 100 17:39 100 17:20 17:44 16 12 18 8 10 11 -6
128 17:45 100 16:25 100 17:40 17:45 18 -4 18 325 10 9 -14
129 17:46 100 17:41 100 17:25 17:46 16 1 18 24 10 12 -6


今日灌溉计划

GhArea 0:

灌溉日期 株龄 母液配方 母液配制ID 母液配制编码 稀释倍数 灌溉详情 预期EC 肥前灌水时长 灌肥时长 肥后灌水时长 肥前灌水体积 灌肥体积 肥后灌水体积 固态肥A重量 固态肥B重量
2026-02-24 07:00:00 130 丰码有品果期肥 1103 TMT-NC1-7-20251218-2026020980 135.80 16.6方(100分钟)液态肥, 或4.3公斤A + 8.2公斤B固态肥 1310.00 1671.00 4082.00 300.00 4.60 11.20 0.80 4.30 8.20
2026-02-27 07:00:00 133 丰码有品果期肥 1103 TMT-NC1-7-20251218-2026020980 453.30 11.6方(70分钟)液态肥, 或1.1公斤A + 2.0公斤B固态肥 699.00 528.00 3375.00 300.00 1.50 9.30 0.80 1.10 2.00
2026-03-02 07:00:00 136 丰码有品果期肥 1103 TMT-NC1-7-20251218-2026020980 449.80 11.5方(69分钟)液态肥, 或1.1公斤A + 2.0公斤B固态肥 700.00 541.00 3340.00 300.00 1.50 9.20 0.80 1.10 2.00

Fertigation Model Charts

FgModelPdf
P7_0_Ws_report

Weather Forecast

dY hr sinB G ds condition RHo P To sfRadiation I fetchTS
54 0 -0.85 0.00 2026-02-24 00:00:00 晴 19.92 957.00 -9.00 1.00 0.00 2026-02-24 05:42:56
54 1 -0.83 0.00 2026-02-24 01:00:00 晴 21.00 957.00 -10.58 1.00 0.00 2026-02-24 05:42:56
54 2 -0.77 0.00 2026-02-24 02:00:00 晴 21.25 957.00 -11.00 1.00 0.00 2026-02-24 05:42:56
54 3 -0.67 0.00 2026-02-24 03:00:00 晴 22.00 957.00 -11.75 1.00 0.00 2026-02-24 05:42:56
54 4 -0.52 0.00 2026-02-24 04:00:00 晴 22.00 957.00 -12.00 1.00 0.00 2026-02-24 05:42:56
54 5 -0.35 0.00 2026-02-24 05:00:00 晴 26.00 957.00 -12.89 1.00 0.00 2026-02-24 05:42:56
54 6 -0.16 0.00 2026-02-24 06:00:00 晴 47.00 1025.00 -12.00 1.00 0.00 2026-02-24 05:42:56
54 7 0.04 45.39 2026-02-24 07:00:00 晴 48.00 1026.00 -12.00 1.00 45.00 2026-02-24 05:42:56
54 8 0.21 270.30 2026-02-24 08:00:00 晴 42.00 1026.00 -10.00 1.00 270.00 2026-02-24 05:42:56
54 9 0.38 471.61 2026-02-24 09:00:00 晴 34.00 1025.00 -5.00 1.00 472.00 2026-02-24 05:42:56
54 10 0.50 631.88 2026-02-24 10:00:00 晴 28.00 1024.00 -5.00 1.00 632.00 2026-02-24 05:42:56
54 11 0.59 739.88 2026-02-24 11:00:00 晴 27.00 1023.00 0.00 1.00 740.00 2026-02-24 05:42:56
54 12 0.63 788.18 2026-02-24 12:00:00 晴 24.00 1021.00 2.00 1.00 788.00 2026-02-24 05:42:56
54 13 0.62 773.48 2026-02-24 13:00:00 晴 22.00 1019.00 4.00 1.00 773.00 2026-02-24 05:42:56
54 14 0.55 696.78 2026-02-24 14:00:00 晴 21.00 1018.00 6.00 1.00 697.00 2026-02-24 05:42:56
54 15 0.45 563.39 2026-02-24 15:00:00 晴 20.00 1018.00 6.00 1.00 563.00 2026-02-24 05:42:56
54 16 0.30 382.52 2026-02-24 16:00:00 晴 23.00 1018.00 6.00 1.00 383.00 2026-02-24 05:42:56
54 17 0.13 167.32 2026-02-24 17:00:00 晴 28.00 1017.00 5.00 1.00 167.00 2026-02-24 05:42:56
54 18 -0.06 0.00 2026-02-24 18:00:00 晴 36.00 1018.00 3.00 1.00 0.00 2026-02-24 05:42:56
54 19 -0.25 0.00 2026-02-24 19:00:00 晴 46.00 1018.00 2.00 1.00 0.00 2026-02-24 05:42:56
54 20 -0.43 0.00 2026-02-24 20:00:00 晴 56.00 1018.00 1.00 1.00 0.00 2026-02-24 05:42:56
54 21 -0.59 0.00 2026-02-24 21:00:00 晴 64.00 1019.00 -1.00 1.00 0.00 2026-02-24 05:42:56
54 22 -0.72 0.00 2026-02-24 22:00:00 晴 68.00 1019.00 -2.00 1.00 0.00 2026-02-24 05:42:56
54 23 -0.81 0.00 2026-02-24 23:00:00 晴 74.00 1019.00 -2.00 1.00 0.00 2026-02-24 05:42:56
55 0 -0.84 0.00 2026-02-25 00:00:00 多云 73.00 1018.00 -4.00 0.80 0.00 2026-02-24 05:42:56
55 1 -0.83 0.00 2026-02-25 01:00:00 多云 74.00 1018.00 -4.00 0.80 0.00 2026-02-24 05:42:56
55 2 -0.77 0.00 2026-02-25 02:00:00 多云 75.00 1018.00 -6.00 0.80 0.00 2026-02-24 05:42:56
55 3 -0.66 0.00 2026-02-25 03:00:00 多云 74.00 1017.00 -5.00 0.80 0.00 2026-02-24 05:42:56
55 4 -0.52 0.00 2026-02-25 04:00:00 多云 42.00 1016.00 -6.00 0.80 0.00 2026-02-24 05:42:56
55 5 -0.35 0.00 2026-02-25 05:00:00 多云 36.00 1014.00 -6.00 0.80 0.00 2026-02-24 05:42:56
55 6 -0.16 0.00 2026-02-25 06:00:00 NaN NaN NaN NaN 1.00 0.00 2026-02-24 05:42:56
55 7 0.04 51.06 2026-02-25 07:00:00 NaN NaN NaN NaN 1.00 51.00 2026-02-24 05:42:56
55 8 0.22 276.44 2026-02-25 08:00:00 NaN NaN NaN NaN 1.00 276.00 2026-02-24 05:42:56
55 9 0.38 477.81 2026-02-25 09:00:00 NaN NaN NaN NaN 1.00 478.00 2026-02-24 05:42:56
55 10 0.51 638.07 2026-02-25 10:00:00 NaN NaN NaN NaN 1.00 638.00 2026-02-24 05:42:56
55 11 0.59 745.99 2026-02-25 11:00:00 NaN NaN NaN NaN 1.00 746.00 2026-02-24 05:42:56
55 12 0.63 794.17 2026-02-25 12:00:00 NaN NaN NaN NaN 1.00 794.00 2026-02-24 05:42:56
55 13 0.62 779.29 2026-02-25 13:00:00 NaN NaN NaN NaN 1.00 779.00 2026-02-24 05:42:56
55 14 0.56 702.40 2026-02-25 14:00:00 NaN NaN NaN NaN 1.00 702.00 2026-02-24 05:42:56
55 15 0.45 568.78 2026-02-25 15:00:00 NaN NaN NaN NaN 1.00 569.00 2026-02-24 05:42:56
55 16 0.31 387.69 2026-02-25 16:00:00 NaN NaN NaN NaN 1.00 388.00 2026-02-24 05:42:56
55 17 0.14 172.24 2026-02-25 17:00:00 NaN NaN NaN NaN 1.00 172.00 2026-02-24 05:42:56
55 18 -0.05 0.00 2026-02-25 18:00:00 NaN NaN NaN NaN 1.00 0.00 2026-02-24 05:42:56
55 19 -0.25 0.00 2026-02-25 19:00:00 NaN NaN NaN NaN 1.00 0.00 2026-02-24 05:42:56
55 20 -0.43 0.00 2026-02-25 20:00:00 NaN NaN NaN NaN 1.00 0.00 2026-02-24 05:42:56
55 21 -0.59 0.00 2026-02-25 21:00:00 NaN NaN NaN NaN 1.00 0.00 2026-02-24 05:42:56
55 22 -0.72 0.00 2026-02-25 22:00:00 NaN NaN NaN NaN 1.00 0.00 2026-02-24 05:42:56
55 23 -0.80 0.00 2026-02-25 23:00:00 NaN NaN NaN NaN 1.00 0.00 2026-02-24 05:42:56

Greenhouse Sensor List

type sensor rep name unit refType
IA CO2 E CO2-东 ppm in_pa
IA IL E 光照强度-东 Klux in_pa
IA RH E 棚内湿度-东 RH in_pa
IA T 1 棚内温度 ℃ in_pa
IS M E 土壤湿度-东 RH in_pa
IS Ts E 土壤温度-东 ℃ in_pa
EA I 1 总辐射-1 w/m2 in_pa
EA I 2 总辐射-2 w/m2 in_pa
EA Po 1 大气压强-1 hPa in_pa
EA Po 2 大气压强-2 hPa in_pa
EA RHo 1 空气湿度-1 % in_pa
EA RHo 2 空气湿度-2 % in_pa
EA RN 1 雨雪-1 in_pa
EA RN 2 雨雪-2 in_pa
EA RNH 1 雨量-1 mm in_pa
EA RNH 2 雨量-2 mm in_pa
EA To 1 空气温度-1 ℃ in_pa
EA To 2 空气温度-2 ℃ in_pa
EA WD 1 风向-1 ° in_pa
EA WD 2 风向-2 ° in_pa
EA WS 1 风速-1 m/s in_pa
EA WS 2 风速-2 m/s in_pa

Time Series Analysis for Sensor Data - Trend and Abnomality

Sensor Group IA

Sensor Group IS

Sensor Group EA

Daily Message

TBD. This section will display any notice or abnomal events, such as sensor data failure, missed chemical applications, disease/insects forecast etc.

Data Upload Batches

up_id 指标组名 上传日期 数据日期 sub_user
2022094144253976576 用药数据指标组 2026-02-13 07:44:12.217 2026-02-13 高阳
2018485885731278848 用药数据指标组 2026-02-03 08:46:59.581 2026-02-03 高阳
2009871251347324928 用药数据指标组 2026-01-10 14:15:45.235 2026-01-10 高阳
2009873678767210496 用药数据指标组 2026-01-10 14:24:51.602 2026-01-10 高阳
2000806199210262528 用药数据指标组 2025-12-16 13:53:58.140 2025-12-16 高阳
1997106462602805248 用药数据指标组 2025-12-06 08:52:53.464 2025-12-06 高阳
1983695629529104384 用药数据指标组 2025-10-30 08:42:22.874 2025-10-30 高阳
1980106602266497024 种植数据指标组 NaT 2025-10-20

Historical Reports

2026-02-23 (Day 129)

2026-02-22 (Day 128)

2026-02-21 (Day 127)

2026-02-20 (Day 126)

2026-02-19 (Day 125)

2026-02-18 (Day 124)

2026-02-17 (Day 123)

2026-02-16 (Day 122)

2026-02-15 (Day 121)

2026-02-14 (Day 120)

2026-02-13 (Day 119)

2026-02-12 (Day 118)

2026-02-11 (Day 117)

2026-02-10 (Day 116)

2026-02-09 (Day 115)

2026-02-08 (Day 114)

2026-02-07 (Day 113)

2026-02-06 (Day 112)

2026-02-05 (Day 111)

2026-02-04 (Day 110)

2026-02-03 (Day 109)

2026-02-02 (Day 108)

2026-02-01 (Day 107)

2026-01-31 (Day 106)

2026-01-30 (Day 105)

2026-01-29 (Day 104)

2026-01-28 (Day 103)

2026-01-27 (Day 102)

2026-01-26 (Day 101)

2026-01-25 (Day 100)

2026-01-24 (Day 99)

2026-01-23 (Day 98)

2026-01-22 (Day 97)

2026-01-21 (Day 96)

2026-01-20 (Day 95)

2026-01-19 (Day 94)

2026-01-18 (Day 93)

2026-01-17 (Day 92)

2026-01-16 (Day 91)

2026-01-15 (Day 90)

2026-01-14 (Day 89)

2026-01-13 (Day 88)

2026-01-12 (Day 87)

2026-01-11 (Day 86)

2026-01-10 (Day 85)

2026-01-07 (Day 82)

2026-01-06 (Day 81)

2026-01-05 (Day 80)

2026-01-04 (Day 79)

2026-01-03 (Day 78)

2026-01-02 (Day 77)

2026-01-01 (Day 76)

2025-12-31 (Day 75)

2025-12-30 (Day 74)

2025-12-29 (Day 73)

2025-12-28 (Day 72)

2025-12-27 (Day 71)

2025-12-26 (Day 70)

2025-12-25 (Day 69)

2025-12-24 (Day 68)

2025-12-23 (Day 67)

2025-12-22 (Day 66)

2025-12-21 (Day 65)

2025-12-20 (Day 64)

2025-12-19 (Day 63)

2025-12-18 (Day 62)

2025-12-17 (Day 61)

2025-12-16 (Day 60)

2025-12-15 (Day 59)

2025-12-14 (Day 58)

2025-12-13 (Day 57)

2025-12-12 (Day 56)

2025-12-11 (Day 55)

2025-12-10 (Day 54)

2025-12-09 (Day 53)

2025-12-07 (Day 51)

2025-12-06 (Day 50)

2025-12-05 (Day 49)

2025-12-04 (Day 48)

2025-12-03 (Day 47)

2025-12-02 (Day 46)

2025-11-27 (Day 41)

2025-11-26 (Day 40)

2025-11-25 (Day 39)

2025-11-24 (Day 38)

2025-11-23 (Day 37)

2025-11-22 (Day 36)

2025-11-21 (Day 35)

2025-11-20 (Day 34)

2025-11-19 (Day 33)

2025-11-18 (Day 32)

2025-11-17 (Day 31)

2025-11-16 (Day 30)

2025-11-15 (Day 29)

2025-11-14 (Day 28)

2025-11-13 (Day 27)

2025-11-12 (Day 26)

2025-11-11 (Day 25)

2025-11-10 (Day 24)

2025-11-09 (Day 23)

2025-11-08 (Day 22)

2025-11-07 (Day 21)

2025-11-06 (Day 20)

2025-11-05 (Day 19)

2025-11-04 (Day 18)

2025-11-03 (Day 17)

2025-11-02 (Day 16)

2025-11-01 (Day 15)

2025-10-31 (Day 14)

2025-10-30 (Day 13)

2025-10-29 (Day 12)

2025-10-28 (Day 11)

2025-10-27 (Day 10)

2025-10-26 (Day 9)

2025-10-25 (Day 8)

2025-10-22 (Day 5)

2025-10-21 (Day 4)