Table 6 Mean daily air temperature, solar radiation, and precipitation at crop phenological growth stages in the 2016–2017 and 2017–2018 crop seasons.
From: Barley Yield Response to Nitrogen Application under Different Weather Conditions
Sowing date | Nitrogen rate | Daily air temperature | Daily solar radiation | Daily precipitation | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
Tillering† | Stem elongation‡ | Ripening§ | Tillering | Stem elongation | Ripening | Tillering | Stem elongation | Ripening | ||
(g m−2 N) | (°C) | (MJ m−2 d−1) | (mm d−1) | |||||||
2016–2017 crop season | ||||||||||
Early | 0 | 9.7 (+1.1)¶ | 6.4 (−0.3) | 13.8(+0.4) | 8.0 (−0.1) | 12.1 (+1.7) | 15.1(−0.2) | 3.0 (+1.2) | 1.3 (−1.2) | 1.9(−2.5) |
3 | 14.0(+0.4) | 15.2(−0.1) | 1.9(−2.6) | |||||||
6 | 14.3(+0.6) | 15.3(−0.1) | 1.8(−2.7) | |||||||
Normal | 0 | 7.1 (+0.5) | 8.4 (−0.7) | 16.5(+1.0) | 9.1 (+0.7) | 13.4 (+0.9) | 16.0(−0.3) | 2.0 (+0.2) | 1.5 (−2.0) | 1.9(−3.2) |
3 | 16.5(+0.9) | 15.7(−0.6) | 3.1(−2.0) | |||||||
6 | 16.6(+0.9) | 15.9(−0.4) | 3.1(−2.0) | |||||||
Late | 0 | 6.8 (+0.5) | 9.9 (−0.8) | 17.8(+1.1) | 9.9 (+0.9) | 13.8 (−0.1) | 16.7(+0.1) | 1.9 (−0.1) | 1.7 (−2.1) | 3.0(−2.5) |
3 | 17.9(+1.1) | 16.9(+0.2) | 2.9(−2.6) | |||||||
6 | 17.9(+1.1) | 17.2(+0.5) | 2.9(−2.7) | |||||||
2017–2018 crop season | ||||||||||
Early | 0 | 6.5 (−1.5) | 7.3 (−0.6) | 16.4(+1.8) | 8.2 (0.0) | 11.1 (−0.6) | 18.5(+2.6) | 1.1 (−0.8) | 5.3 (+2.3) | 4.3(−0.3) |
3 | 16.4(+1.7) | 18.7(+2.7) | 4.2(−0.5) | |||||||
6 | 16.4(+1.7) | 18.7(+2.7) | 4.2(−0.5) | |||||||
Normal | 0 | 5.4 (−1.4) | 12.4 (+1.8) | 17.0(+0.7) | 8.8 (−0.1) | 15.7 (+1.9) | 17.2(+0.6) | 2.2 (+0.1) | 4.3 (+0.6) | 6.9(+1.6) |
3 | 17.2(+0.8) | 17.4(+0.8) | 6.8(+1.4) | |||||||
6 | 17.3(+0.8) | 17.4(+0.8) | 6.6(+1.2) | |||||||
Late | 0 | 5.3 (−1.3) | 13.5 (+1.9) | 18.2(+1.1) | 9.4 (0.0) | 15.8 (+1.4) | 17.4(+0.6) | 2.6 (+0.5) | 4.0 (0.0) | 7.3(+1.6) |
3 | 18.2(+1.0) | 17.5(+0.7) | 7.1(+1.4) | |||||||
6 | 18.3(+1.0) | 17.8(+0.9) | 6.9(+1.2) | |||||||
