Effect of Cultivation Conditions on Growth and Yield of Radishes
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摘要: 研究不同栽培措施对萝卜生产的影响,结果表明:试验条件下,播种太早或太迟,对萝卜生长都不利,“瑞雪”萝卜最适播种期应为9月25日至11月5日;利用地膜覆盖,萝卜地上部和地下部的生产速度明显提高,生育期提早,产量比露地提高了36.64%;每667 m2种植密度以6 500~7 500株为好。Abstract: Effects of sowing time, plastic film mulching, and planting density on the growth characteristics and yield of Ruixue radish were studied. The results showed that,under the experimental conditions, sowing either too early or too late in a season was detrimental to the growth of the radish. The proper sowing time for Ruixue was between September 25 and November 5. Using plastic film for mulching significantly hastened the growth of the plant parts both above and under the ground. Thus, the growth period of Ruixuewas shortened and itsyield improved 36.64% over control (without the ground cover). And, at 6 500-7 500 plants per 667 m2, the highest yield with extremely significant differencesamong all planting densities tested was achieved.
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Key words:
- radish /
- cultivation conditions /
- growth characteristics /
- yield
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表 1 不同播种期对萝卜主要性状影响
Table 1. Effect of sowing time on main characteristics of radish
播种期/(月-日) 株高/cm 株幅 叶数 根长/cm 根径/cm 单根重/kg 09-05 40.8 55.2 20.5 26.7 8.0 1.05 09-25 44.5 66.8 22.1 29.4 8.2 1.37 10-10 46.2 67.6 22.4 30.4 9.0 1.51 11-05 42.0 66.2 21.0 29.7 8.6 1.42 12-02 34.4 56.2 19.4 19.8 7.2 0.64 表 2 不同播种期对萝卜生育期及产量影响
Table 2. Effect of sowing time on growth period and yield of radish
播种日期/(月-日) 采收日期/(月-日) 生育期/d 生育期播种期差异天数比 小区平均产量/kg 09-05 11-27 82 - 164.90 Dc 09-025 12-20 86 0.20 193.91 Cb 10-10 01-07 88 0.17 203.38 Aa 11-05 02-12 98 0.26 197.74 Bb 12-02 03-24 111 0.32 113.15 Ed 注:同列数据后大写字母表示0.05%的差异显著性,小写字母表示0.01%的差异显著性,表 5同。 表 3 不同覆盖处理萝卜生育期和产量差异
Table 3. Differences in growth period of radish under different treatments
处理 生育期/(月-日) 小区产量/kg 播种期 出苗期 幼苗期 露肩期 采收期 覆膜 12-02 12-08 01-06 02-13 03-24 154.62 露地 12-02 12-10 01-12 02-20 03-24 113.16 表 4 不同处理对萝卜性状和产量的影响
Table 4. Effects of different treatments on characteristics and yield of radish
处理 调查时间/(月-日) 株高/cm 株幅/cm 叶数 根长/cm 根径/cm 覆膜 01-06 12.8 28.6 6.2 11.6 0.4 02-13 16.4 47.6 13.8 18.0 4.0 03-06 37.0 49.4 18.2 25.6 6.8 03-16 36.4 59.4 19.8 27.6 7.2 03-24 40.8 61.2 20.5 28.0 7.8 露地 01-06 7.4 20.4 5.2 10.0 0.3 02-13 9.6 37.0 8.2 12.0 2.2 03-06 26.0 44.0 18.0 18.0 6.0 03-16 31.6 53.4 18.6 19.8 6.6 03-24 34.4 56.2 19.4 19.8 7.2 表 5 不同密度处理对萝卜生长的影响
Table 5. Effect of planting density on growth of radish
每667 m2种植/株 株高/cm 株幅/cm 叶数 根长/cm 根径/cm 单根重/kg 小区产量/kg 8000 39.9 52.1 20.5 22.6 7.2 0.71 168.9 Cb 7500 42.1 51.7 21.1 23.9 7.2 0.74 181.0 Bab 7000 41.5 53.7 20.4 25.6 7.6 0.91 200.0 Aa 6500 40.8 55.2 20.8 26.7 8.0 1.05 183.9 Bb 5500 43.1 58.4 21.3 28.7 8.3 1.26 167.4 Cb -
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