种植密度和施肥量对油菜毯状苗生长的影响
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张含笑,林参,左青松,杨光,冯倩南,冯云艳,冷锁虎
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Effects of plant density and N fertilizer spraying concentration on growth of rapeseed blanket seedlings
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Han-Xiao ZHANG,Shen LIN,Qing-Song ZUO,Guang YANG,Qian-Nan FENG,Yun-Yan FENG,Suo-Hu LENG
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表4 不同密度和施肥对油菜毯状苗各苗龄干物质积累的影响
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Table 4 Effect of planting density and N rate on overground and underground part dry weight of the blanket rapeseed seedings during process of growth
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密度
Density
(Seed plate-1) | 施肥浓度
Nitrogen
(g L-1) | 地上干物重
Dry weight of shoots (mg plant-1) | 地下干物重
Dry weight of roots (mg plant-1) | | 20 d | 30 d | 40 d | 20 d | 30 d | 40 d | | 400 | 1 | 26.3 f | 58.1 f | 77.6 f | 1.6 c | 5.1 e | 8.6 ef | | 2 | 32.1 bc | 64.6 c | 87.2 c | 2.2 b | 6.5 b | 9.7 cd | | 3 | 35.5 a | 70.7 a | 93.6 a | 2.5 a | 7.6 a | 12.6 a | | 平均 Mean | 31.3 | 64.5 | 86.1 | 2.1 | 6.4 | 10.3 | | 600 | 1 | 25.9 f | 57.9 ef | 77.4 f | 1.5 cd | 4.9 ef | 8.0 fg | | 2 | 31.3 c | 63.3 c | 85.9 d | 2.0 b | 6.1 c | 9.5 d | | 3 | 34.8 a | 69.7 ab | 92.6 ab | 2.3 a | 7.1 ab | 11.7 ab | | 平均 Mean | 30.7 | 63.6 | 85.3 | 1.9 | 6.0 | 9.7 | | 800 | 1 | 25.6 f | 57.5 ef | 77.1 g | 1.4 d | 4.6 g | 7.9 g | | 2 | 30.8 c | 62.7 c | 85.1 e | 1.8 c | 5.7 d | 9.3 d | | 3 | 33.5 b | 68.1 b | 92.8 ab | 2.1 b | 6.2 c | 11.5 b | | 平均 Mean | 30.0 | 62.8 | 85.0 | 1.8 | 5.5 | 9.6 | | 1000 | 1 | 23.4 i | 54.9 g | 75.5 e | 1.1 g | 4.1 h | 7.6 gh | | 2 | 27.3 g | 59.9 e | 80.0 d | 1.3 e | 4.8 f | 8.4 e | | 3 | 30.1 d | 66.1 c | 87.8 c | 1.6 c | 5.6 d | 9.6 cd | | 平均 Mean | 26.9 | 60.3 | 81.1 | 1.3 | 4.8 | 8.5 | | 1200 | 1 | 22.4 j | 53.6 h | 74.6 e | 1.1 g | 3.5 i | 7.1 h | | 2 | 25.8 h | 58.6 f | 79.0 d | 1.2 f | 4.1 h | 7.7 gh | | 3 | 28.1 e | 61.9 d | 86.1 d | 1.5 cd | 4.8 f | 8.7 e | | 平均 Mean | 25.4 | 58.0 | 79.9 | 1.3 | 4.1 | 7.8 |
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