锌同磷对水稻吸收氮和铁的影响

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试验在达尔索的pH7.5,无碳酸盐反应,含有机C0.43%、DTPA提取Zn0.70ppm、0.5MNaHCO_3提取P9.0ppm的粉砂壤土上用盆栽进行。处理:锌为0、5、10、20ppm;磷为0、25、50、100ppm各四个。每盆栽25天苗龄的秧苗2穴,每穴2株。试验在分蘖、抽穗及成熟三个生育阶段均重复三次。结果如下: The experiment was carried out on potatoes in Dalsuo pH7.5, carbonate-free reaction, organic C0.43%, Zn0.70ppm DTPA extraction, P9.0ppm 0.5MNaHCO_3 extraction. Treatment: zinc is 0,5,10,20 ppm; phosphorus is 0,25,50,100 ppm each four. 25 days of seedlings per pot seedling 2 points, 2 per hole. The experiment was repeated three times in three stages of tillering, heading and maturity. The result is as follows:
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