分期施钾对不同质地土壤麦田冬小麦干物质积累和产量的影响
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胡鑫慧, 谷淑波, 朱俊科, 王东
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Effects of applying potassium at different growth stages on dry matter accumulation and yield of winter wheat in different soil-texture fields
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HU Xin-Hui, GU Shu-Bo, ZHU Jun-Ke, WANG Dong
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表1 试验地0~200 cm各土层土壤颗粒含量
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Table 1 Percentage of soil particles in 0-200 cm soil layers of experimental plots
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土层
Soil layer (cm) | 粉壤土地块 Powder loam plot (%) | 沙壤土地块 Sandy loam plot (%) | | 黏粒 Clay | 沙粒 Sand | 粉粒 Powder | 黏粒 Clay | 沙粒 Sand | 粉粒 Powder | | 0-20 | 19.3 | 21.0 | 59.7 | 9.8 | 50.6 | 39.6 | | 20-40 | 20.4 | 20.7 | 58.9 | 8.5 | 54.7 | 36.8 | | 40-60 | 21.7 | 19.0 | 59.3 | 8.1 | 61.1 | 30.8 | | 60-80 | 15.1 | 21.3 | 63.6 | 8.6 | 57.2 | 34.2 | | 80-100 | 12.2 | 22.4 | 65.4 | 7.4 | 71.4 | 21.2 | | 100-120 | 17.5 | 19.7 | 62.8 | 6.5 | 79.6 | 13.9 | | 120-140 | 17.6 | 20.3 | 62.1 | 6.3 | 73.3 | 20.4 | | 140-160 | 15.2 | 17.6 | 67.2 | 5.7 | 69.5 | 24.8 | | 160-180 | 10.4 | 21.5 | 68.1 | 6.3 | 75.4 | 18.3 | | 180-200 | 13.7 | 22.3 | 64.0 | 5.7 | 70.4 | 23.9 |
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