陕西省粮食生产的减肥潜力及经济环境效益
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张欣欣,石磊,何刚,王朝辉
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Potential of Fertilizer Reduction and Benefits of Environment and Economic for Cereal Crops Production in Shaanxi Province
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ZHANG XinXin,SHI Lei,HE Gang,WANG ZhaoHui
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表2 肥料种类、用量及其基追比
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Table 2 Fertilizer’s types, application rates and ratio of fertilizer in different periods
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作物
Crop | 肥料
种类
Fertilizer type | 氮肥 Nitrogen fertilizer | 磷肥 Phosphorus fertilizer | 钾肥 Potassium fertilizer | 基肥
Basal fertilizer
(kg N·hm-2)
| 追肥
Top-dressing
(kg N·hm-2) | 总和All | 基肥
Basal
fertilizer
(kg P2O5·hm-2) | 追肥Top-dressing
(kg P2O5·hm-2) | 总和All | 基肥
Basal fertilizer
(kg K2O·hm-2) | 追肥Topdressing
(kg K2O·hm-2) | 总和All | | 平均Average | 比例Ratio (%) | 平均值Average
(kg P2O5·hm-2) | 比例Ratio
(%) | 平均值Average
(kg K2O·hm-2) | 比例Ratio (%) | | 小麦Wheat | 单质肥
ECF | 66 | 20 | 83a | 48 | 22 | 0 | 22b | 22 | 3 | 0 | 3c | 8 | 复合肥
CF | 76 | 0.2 | 75a | 44 | 69 | 0.3 | 68a | 67 | 25 | 0.3 | 25a | 66 | 有机肥
OM | 15 | 0 | 14b | 8 | 11 | 0 | 11c | 11 | 10 | 0 | 10b | 26 | | 总和All | 157 # | 20 & | — | — | 102 # | 0.3 & | — | — | 37 # | 0.3 & | — | — | | 玉米Maize | 单质肥
ECF | 51 | 99 | 151a | 61 | 18 | 1 | 19b | 18 | 1 | 0.2 | 1c | 2 | 复合肥
CF | 68 | 4 | 72b | 29 | 62 | 4 | 66a | 64 | 23 | 2 | 28a | 60 | 有机肥
OM | 23 | 1 | 24c | 10 | 18 | 1 | 18b | 18 | 18 | 1 | 18b | 38 | | 总和All | 142 # | 104 & | — | — | 97 # | 6 & | — | — | 44 # | 3 & | — | — | | 水稻Rice | 单质肥
ECF | 55 | 50 | 105a | 57 | 21 | 0 | 21b | 24 | 3 | 0 | 3c | 5 | 复合肥
CF | 54 | 3 | 56b | 30 | 48 | 2 | 50a | 57 | 43 | 1 | 44a | 70 | 有机肥
OM | 25 | 0 | 25 c | 13 | 17 | 0 | 17b | 19 | 16 | 0 | 16b | 25 | | 总和All | 134 # | 52 & | — | — | 86 # | 2 & | — | — | 63 # | 1 & | — | — |
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