Journal of Zhejiang Agricultural Sciences ›› 2025, Vol. 66 ›› Issue (7): 1587-1591.DOI: 10.16178/j.issn.0528-9017.20231224
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LIU Weiwei(
), LIN Guanghao, YI Jianqun, HE Shuiqing()
Received:2023-12-25
Online:2025-07-11
Published:2025-07-28
CLC Number:
LIU Weiwei, LIN Guanghao, YI Jianqun, HE Shuiqing. Key technical points of direct seeding cultivation for ratoon rice[J]. Journal of Zhejiang Agricultural Sciences, 2025, 66(7): 1587-1591.
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URL: http://www.zjnykx.cn/EN/10.16178/j.issn.0528-9017.20231224
| 品种 | 头季 | 再生季 | ||||
|---|---|---|---|---|---|---|
| 齐穗期(月-日) | 成熟期(月-日) | 收割时间(月-日) | 齐穗期(月-日) | 成熟期(月-日) | 收割时间(月-日) | |
| 浙杭优820 | 07-09 | 08-14 | 08-12 | 09-20 | 11-10 | 11-10 |
| 甬优4901 | 07-12 | 08-12 | 08-12 | 09-25 | 11-08 | 11-10 |
| 甬优6708 | 07-10 | 08-10 | 08-12 | 09-22 | 11-03 | 11-10 |
| 荃香优89 | 07-15 | 08-15 | 08-12 | 09-26 | 11-08 | 11-10 |
Table 1 Growth period of different varieties in plot test
| 品种 | 头季 | 再生季 | ||||
|---|---|---|---|---|---|---|
| 齐穗期(月-日) | 成熟期(月-日) | 收割时间(月-日) | 齐穗期(月-日) | 成熟期(月-日) | 收割时间(月-日) | |
| 浙杭优820 | 07-09 | 08-14 | 08-12 | 09-20 | 11-10 | 11-10 |
| 甬优4901 | 07-12 | 08-12 | 08-12 | 09-25 | 11-08 | 11-10 |
| 甬优6708 | 07-10 | 08-10 | 08-12 | 09-22 | 11-03 | 11-10 |
| 荃香优89 | 07-15 | 08-15 | 08-12 | 09-26 | 11-08 | 11-10 |
| 品种 | 第1区组/ (kg·hm-2) | 第2区组/ (kg·hm-2) | 第3区组/ (kg·hm-2) | 平均值/ (kg·hm-2) |
|---|---|---|---|---|
| 浙杭优820 | 14 725.5 | 14 185.5 | 14 467.5 | 14 460.0 aA |
| 甬优4901 | 13 896.0 | 14 359.5 | 14 064.0 | 14 106.0 aA |
| 甬优6708 | 13 278.0 | 12 873.0 | 13 093.5 | 13 081.5 bB |
| 荃香优89 | 11 697.0 | 12 154.5 | 11 952.0 | 11 934.0 cC |
Table 2 Yield of different varieties in plot test
| 品种 | 第1区组/ (kg·hm-2) | 第2区组/ (kg·hm-2) | 第3区组/ (kg·hm-2) | 平均值/ (kg·hm-2) |
|---|---|---|---|---|
| 浙杭优820 | 14 725.5 | 14 185.5 | 14 467.5 | 14 460.0 aA |
| 甬优4901 | 13 896.0 | 14 359.5 | 14 064.0 | 14 106.0 aA |
| 甬优6708 | 13 278.0 | 12 873.0 | 13 093.5 | 13 081.5 bB |
| 荃香优89 | 11 697.0 | 12 154.5 | 11 952.0 | 11 934.0 cC |
| 品种 | 栽培季 | 单丛有效穗 | 每穗总粒数 | 每穗实粒数 | 结实率/ % | 千粒重/ g | 理论产量/ (kg·hm-2) | 实际产量/ (kg·hm-2) |
|---|---|---|---|---|---|---|---|---|
| 浙杭优820 | 头季稻 | 14.8 | 221.7 | 187.3 | 84.5 | 25.0 | 10 395.0 | 9 385.5 |
| 再生季 | 15.1 | 121.3 | 102.5 | 84.5 | 23.8 | 5 526.0 | 5 074.5 | |
| 甬优4901 | 头季稻 | 16.1 | 196.0 | 173.7 | 88.6 | 23.5 | 9 858.0 | 9 306.0 |
| 再生季 | 19.4 | 95.7 | 78.4 | 81.9 | 21.9 | 4 996.5 | 4 800.0 | |
| 甬优6708 | 头季稻 | 15.1 | 169.5 | 151.2 | 89.2 | 27.6 | 9 451.5 | 8 478.0 |
| 再生季 | 16.5 | 89.6 | 67.0 | 80.5 | 26.8 | 4 782.0 | 4 603.5 | |
| 荃香优89 | 头季稻 | 15.5 | 213.3 | 185.6 | 87.0 | 25.1 | 10 831.5 | 9 789.0 |
| 再生季 | 9.8 | 78.9 | 62.0 | 78.6 | 24.0 | 2 187.0 | 2 145.0 |
Table 3 Yield of different varieties and its related factors in plot test
| 品种 | 栽培季 | 单丛有效穗 | 每穗总粒数 | 每穗实粒数 | 结实率/ % | 千粒重/ g | 理论产量/ (kg·hm-2) | 实际产量/ (kg·hm-2) |
|---|---|---|---|---|---|---|---|---|
| 浙杭优820 | 头季稻 | 14.8 | 221.7 | 187.3 | 84.5 | 25.0 | 10 395.0 | 9 385.5 |
| 再生季 | 15.1 | 121.3 | 102.5 | 84.5 | 23.8 | 5 526.0 | 5 074.5 | |
| 甬优4901 | 头季稻 | 16.1 | 196.0 | 173.7 | 88.6 | 23.5 | 9 858.0 | 9 306.0 |
| 再生季 | 19.4 | 95.7 | 78.4 | 81.9 | 21.9 | 4 996.5 | 4 800.0 | |
| 甬优6708 | 头季稻 | 15.1 | 169.5 | 151.2 | 89.2 | 27.6 | 9 451.5 | 8 478.0 |
| 再生季 | 16.5 | 89.6 | 67.0 | 80.5 | 26.8 | 4 782.0 | 4 603.5 | |
| 荃香优89 | 头季稻 | 15.5 | 213.3 | 185.6 | 87.0 | 25.1 | 10 831.5 | 9 789.0 |
| 再生季 | 9.8 | 78.9 | 62.0 | 78.6 | 24.0 | 2 187.0 | 2 145.0 |
| 品种 | 栽培季 | 单丛 有效穗数 | 每穗 总粒数 | 每穗 实粒数 | 结实率/ % | 千粒重/ g | 理论产量/ (kg·hm-2) | 实际产量/ (kg·hm-2) | 两季总产量/ (kg·hm-2) |
|---|---|---|---|---|---|---|---|---|---|
| 浙杭优820 | 头季稻 | 14.5 | 215.3 | 181.5 | 84.3 | 25.0 | 9 868.5 | 9 364.5 | |
| 再生季 | 14.6 | 135.7 | 114.7 | 84.5 | 23.8 | 5 976.0 | 5 100.0 | 14 464.5 | |
| 甬优4901 | 头季稻 | 15.9 | 193.4 | 170.4 | 88.1 | 23.5 | 9 549.0 | 9 525.0 | |
| 再生季 | 18.7 | 93.3 | 78.8 | 84.5 | 21.6 | 4 776.0 | 4 743.0 | 14 268.0 | |
| 甬优6708 | 头季稻 | 14.6 | 168.3 | 149.3 | 88.7 | 27.6 | 9 022.5 | 8 386.5 | |
| 再生季 | 16.1 | 91.3 | 77.1 | 84.4 | 26.8 | 4 987.5 | 4 656.0 | 13 042.5 | |
| 荃香优89 | 头季稻 | 15.3 | 205.6 | 179.3 | 87.2 | 25.1 | 10 327.5 | 9 756.0 | |
| 再生季 | 9.9 | 78.2 | 61.4 | 78.5 | 24.0 | 2 188.5 | 2 151.0 | 11 907.0 |
Table 4 Yield of different varieties and its related factors in large area test
| 品种 | 栽培季 | 单丛 有效穗数 | 每穗 总粒数 | 每穗 实粒数 | 结实率/ % | 千粒重/ g | 理论产量/ (kg·hm-2) | 实际产量/ (kg·hm-2) | 两季总产量/ (kg·hm-2) |
|---|---|---|---|---|---|---|---|---|---|
| 浙杭优820 | 头季稻 | 14.5 | 215.3 | 181.5 | 84.3 | 25.0 | 9 868.5 | 9 364.5 | |
| 再生季 | 14.6 | 135.7 | 114.7 | 84.5 | 23.8 | 5 976.0 | 5 100.0 | 14 464.5 | |
| 甬优4901 | 头季稻 | 15.9 | 193.4 | 170.4 | 88.1 | 23.5 | 9 549.0 | 9 525.0 | |
| 再生季 | 18.7 | 93.3 | 78.8 | 84.5 | 21.6 | 4 776.0 | 4 743.0 | 14 268.0 | |
| 甬优6708 | 头季稻 | 14.6 | 168.3 | 149.3 | 88.7 | 27.6 | 9 022.5 | 8 386.5 | |
| 再生季 | 16.1 | 91.3 | 77.1 | 84.4 | 26.8 | 4 987.5 | 4 656.0 | 13 042.5 | |
| 荃香优89 | 头季稻 | 15.3 | 205.6 | 179.3 | 87.2 | 25.1 | 10 327.5 | 9 756.0 | |
| 再生季 | 9.9 | 78.2 | 61.4 | 78.5 | 24.0 | 2 188.5 | 2 151.0 | 11 907.0 |
| 品种 | 株高/ cm | 倒1/ cm | 倒2/ cm | 倒3/ cm | 倒4/ cm | 倒5/ cm |
|---|---|---|---|---|---|---|
| 浙杭优820 | 97.8 | 45.4 | 29.0 | 13.5 | 0.3 | — |
| 甬优4901 | 92.4 | 40.0 | 31.0 | 15.2 | 5.8 | 0.0 |
| 甬优6708 | 96.0 | 47.0 | 38.7 | 22.4 | 9.0 | 1.3 |
| 荃香优89 | 108.5 | 54.3 | 40.3 | 22.5 | 12.0 | 1.5 |
Table 5 Height of each node of different varieties of main crop rice
| 品种 | 株高/ cm | 倒1/ cm | 倒2/ cm | 倒3/ cm | 倒4/ cm | 倒5/ cm |
|---|---|---|---|---|---|---|
| 浙杭优820 | 97.8 | 45.4 | 29.0 | 13.5 | 0.3 | — |
| 甬优4901 | 92.4 | 40.0 | 31.0 | 15.2 | 5.8 | 0.0 |
| 甬优6708 | 96.0 | 47.0 | 38.7 | 22.4 | 9.0 | 1.3 |
| 荃香优89 | 108.5 | 54.3 | 40.3 | 22.5 | 12.0 | 1.5 |
| 品种 | 节位 | 总粒 数 | 实粒 数 | 结实 率/% | 千粒 重/g | 穗数占 比/% | 产量占 比/% |
|---|---|---|---|---|---|---|---|
| 浙杭优820 | 倒4 | 149.5 | 126.8 | 84.8 | 24.6 | 66.7 | 74.7 |
| 倒3 | 124.5 | 102.8 | 82.5 | 23.5 | 22.9 | 19.9 | |
| 倒2 | 72.0 | 63.4 | 88.1 | 23.0 | 10.4 | 5.4 | |
| 甬优4901 | 倒5 | 123.5 | 103.2 | 83.6 | 22.0 | 44.1 | 58.6 |
| 倒4 | 88.4 | 75.8 | 85.7 | 21.5 | 11.8 | 11.2 | |
| 倒3 | 74.0 | 62.8 | 84.8 | 21.2 | 29.4 | 22.9 | |
| 倒2 | 45.0 | 40.5 | 90.0 | 21.0 | 14.7 | 7.3 | |
| 甬优6708 | 倒5 | 118.0 | 97.9 | 83.0 | 27.0 | 50.7 | 59.0 |
| 倒4 | 90.3 | 78.5 | 86.9 | 26.3 | 32.4 | 29.5 | |
| 倒3 | 72.6 | 59.2 | 81.5 | 26.0 | 14.1 | 9.6 | |
| 倒2 | 64.8 | 58.2 | 89.8 | 25.8 | 2.8 | 1.9 |
Table 6 Yield traits and contribution rate to yield of different varieties of rice in ratoon-crop season
| 品种 | 节位 | 总粒 数 | 实粒 数 | 结实 率/% | 千粒 重/g | 穗数占 比/% | 产量占 比/% |
|---|---|---|---|---|---|---|---|
| 浙杭优820 | 倒4 | 149.5 | 126.8 | 84.8 | 24.6 | 66.7 | 74.7 |
| 倒3 | 124.5 | 102.8 | 82.5 | 23.5 | 22.9 | 19.9 | |
| 倒2 | 72.0 | 63.4 | 88.1 | 23.0 | 10.4 | 5.4 | |
| 甬优4901 | 倒5 | 123.5 | 103.2 | 83.6 | 22.0 | 44.1 | 58.6 |
| 倒4 | 88.4 | 75.8 | 85.7 | 21.5 | 11.8 | 11.2 | |
| 倒3 | 74.0 | 62.8 | 84.8 | 21.2 | 29.4 | 22.9 | |
| 倒2 | 45.0 | 40.5 | 90.0 | 21.0 | 14.7 | 7.3 | |
| 甬优6708 | 倒5 | 118.0 | 97.9 | 83.0 | 27.0 | 50.7 | 59.0 |
| 倒4 | 90.3 | 78.5 | 86.9 | 26.3 | 32.4 | 29.5 | |
| 倒3 | 72.6 | 59.2 | 81.5 | 26.0 | 14.1 | 9.6 | |
| 倒2 | 64.8 | 58.2 | 89.8 | 25.8 | 2.8 | 1.9 |
| 播种量/ (kg·hm-2) | 单丛有 效穗数 | 有效分蘖临界期 (月-日) | 最高苗时期 (月-日) | 667 m2最高 苗数/万 | 成穗率/ % |
|---|---|---|---|---|---|
| 16.5 | 13.5 | 05-24 | 05-24 | 25.2 | 58.3 |
| 19.5 | 15.7 | 05-19 | 05-17 | 29.1 | 55.4 |
| 22.5 | 17.1 | 05-15 | 05-15 | 31.9 | 52.6 |
| 25.5 | 17.8 | 05-11 | 05-13 | 34.3 | 50.1 |
Table 7 Growth period and agronomic traits of Yongyou 4901 as main crop rice
| 播种量/ (kg·hm-2) | 单丛有 效穗数 | 有效分蘖临界期 (月-日) | 最高苗时期 (月-日) | 667 m2最高 苗数/万 | 成穗率/ % |
|---|---|---|---|---|---|
| 16.5 | 13.5 | 05-24 | 05-24 | 25.2 | 58.3 |
| 19.5 | 15.7 | 05-19 | 05-17 | 29.1 | 55.4 |
| 22.5 | 17.1 | 05-15 | 05-15 | 31.9 | 52.6 |
| 25.5 | 17.8 | 05-11 | 05-13 | 34.3 | 50.1 |
| 播种量/ (kg·hm-2) | 栽培季 | 单丛有效穗数 | 每穗总粒数 | 每穗实粒数 | 结实率/ % | 千粒重/ g | 理论产量/ (kg·hm-2) | 实际产量/ (kg·hm-2) | 两季总产量/ (kg·hm-2) |
|---|---|---|---|---|---|---|---|---|---|
| 16.5 | 头季稻 | 13.5 | 190.1 | 177.4 | 93.3 | 23.1 | 8 298.0 | 8 253.0 | |
| 16.5 | 再生季 | 15.2 | 105.7 | 87.8 | 83.1 | 21.4 | 4 285.5 | 4 126.5 | 12 379.5 dC |
| 19.5 | 头季稻 | 15.7 | 177.0 | 164.3 | 92.8 | 23.2 | 8 976.0 | 9 057.0 | |
| 19.5 | 再生季 | 16.5 | 103.2 | 85.2 | 82.6 | 21.7 | 4 578.0 | 4 548.0 | 13 605.0 bA |
| 22.5 | 头季稻 | 17.1 | 172.7 | 159.8 | 92.5 | 23.0 | 9 414.0 | 9 268.5 | |
| 22.5 | 再生季 | 18.1 | 95.7 | 78.4 | 81.9 | 21.5 | 4 575.0 | 4 450.5 | 13 719.0 aA |
| 25.5 | 头季稻 | 17.8 | 160.8 | 147.0 | 91.4 | 22.8 | 8 947.5 | 8 853.0 | |
| 25.5 | 再生季 | 18.9 | 88.3 | 69.4 | 78.6 | 21.3 | 4 191.0 | 4 033.5 | 13 426.5 cB |
Table 8 Effects of different seeding rates on yield and its related factors
| 播种量/ (kg·hm-2) | 栽培季 | 单丛有效穗数 | 每穗总粒数 | 每穗实粒数 | 结实率/ % | 千粒重/ g | 理论产量/ (kg·hm-2) | 实际产量/ (kg·hm-2) | 两季总产量/ (kg·hm-2) |
|---|---|---|---|---|---|---|---|---|---|
| 16.5 | 头季稻 | 13.5 | 190.1 | 177.4 | 93.3 | 23.1 | 8 298.0 | 8 253.0 | |
| 16.5 | 再生季 | 15.2 | 105.7 | 87.8 | 83.1 | 21.4 | 4 285.5 | 4 126.5 | 12 379.5 dC |
| 19.5 | 头季稻 | 15.7 | 177.0 | 164.3 | 92.8 | 23.2 | 8 976.0 | 9 057.0 | |
| 19.5 | 再生季 | 16.5 | 103.2 | 85.2 | 82.6 | 21.7 | 4 578.0 | 4 548.0 | 13 605.0 bA |
| 22.5 | 头季稻 | 17.1 | 172.7 | 159.8 | 92.5 | 23.0 | 9 414.0 | 9 268.5 | |
| 22.5 | 再生季 | 18.1 | 95.7 | 78.4 | 81.9 | 21.5 | 4 575.0 | 4 450.5 | 13 719.0 aA |
| 25.5 | 头季稻 | 17.8 | 160.8 | 147.0 | 91.4 | 22.8 | 8 947.5 | 8 853.0 | |
| 25.5 | 再生季 | 18.9 | 88.3 | 69.4 | 78.6 | 21.3 | 4 191.0 | 4 033.5 | 13 426.5 cB |
| 尿素用量/ (kg·hm-2) | 单丛有效穗数 | 每穗总粒数 | 每穗实粒数 | 结实率/ % | 千粒重/ g | 理论产量/ (kg·hm-2) | 实际产量/ (kg·hm-2) |
|---|---|---|---|---|---|---|---|
| 150 | 12.8 | 75.8 | 59.2 | 78.1 | 21.0 | 2 386.5 | 2 370.0 dD |
| 225 | 14.3 | 88.7 | 73.4 | 82.7 | 21.2 | 3 336.0 | 3 285.0 cC |
| 300 | 15.3 | 93.2 | 77.8 | 83.5 | 21.2 | 3 786.0 | 3 726.0 bB |
| 375 | 16.5 | 98.7 | 84.6 | 85.7 | 21.4 | 4 480.5 | 4 453.5 aA |
| 450 | 16.7 | 99.6 | 82.3 | 82.6 | 21.3 | 4 389.0 | 4 363.5 aA |
Table 9 Effects of different urea application rates on yield and its related factors in ratoon-crop season
| 尿素用量/ (kg·hm-2) | 单丛有效穗数 | 每穗总粒数 | 每穗实粒数 | 结实率/ % | 千粒重/ g | 理论产量/ (kg·hm-2) | 实际产量/ (kg·hm-2) |
|---|---|---|---|---|---|---|---|
| 150 | 12.8 | 75.8 | 59.2 | 78.1 | 21.0 | 2 386.5 | 2 370.0 dD |
| 225 | 14.3 | 88.7 | 73.4 | 82.7 | 21.2 | 3 336.0 | 3 285.0 cC |
| 300 | 15.3 | 93.2 | 77.8 | 83.5 | 21.2 | 3 786.0 | 3 726.0 bB |
| 375 | 16.5 | 98.7 | 84.6 | 85.7 | 21.4 | 4 480.5 | 4 453.5 aA |
| 450 | 16.7 | 99.6 | 82.3 | 82.6 | 21.3 | 4 389.0 | 4 363.5 aA |
| 留桩高度/ cm | 单丛有效穗数 | 每穗总粒数 | 每穗实粒数 | 结实率/ % | 千粒重/ g | 理论产量/ (kg·hm-2) | 实际产量/ (kg·hm-2) |
|---|---|---|---|---|---|---|---|
| 35 | 16.7 | 87.3 | 74.3 | 85.1 | 21.8 | 4 059.0 | 3 958.5 bB |
| 30 | 16.4 | 98.7 | 81.2 | 82.3 | 22.0 | 4 396.5 | 4 368.0 aA |
| 25 | 15.8 | 105.6 | 83.8 | 79.4 | 21.5 | 4 272.0 | 4 246.5 aA |
| 20 | 14.4 | 107.3 | 80.7 | 75.2 | 21.2 | 3 694.5 | 3 624.0 cC |
| 10 | 12.5 | 110.2 | 78.2 | 71.0 | 21.0 | 3 081.0 | 2 943.0 dD |
Table 10 Effects of different cutting height on yield and its related factors in ratoon-crop season
| 留桩高度/ cm | 单丛有效穗数 | 每穗总粒数 | 每穗实粒数 | 结实率/ % | 千粒重/ g | 理论产量/ (kg·hm-2) | 实际产量/ (kg·hm-2) |
|---|---|---|---|---|---|---|---|
| 35 | 16.7 | 87.3 | 74.3 | 85.1 | 21.8 | 4 059.0 | 3 958.5 bB |
| 30 | 16.4 | 98.7 | 81.2 | 82.3 | 22.0 | 4 396.5 | 4 368.0 aA |
| 25 | 15.8 | 105.6 | 83.8 | 79.4 | 21.5 | 4 272.0 | 4 246.5 aA |
| 20 | 14.4 | 107.3 | 80.7 | 75.2 | 21.2 | 3 694.5 | 3 624.0 cC |
| 10 | 12.5 | 110.2 | 78.2 | 71.0 | 21.0 | 3 081.0 | 2 943.0 dD |
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