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机构地区:[1]驻马店市农业科学研究所,河南驻马店463000
出 处:《土壤通报》2006年第1期96-98,共3页Chinese Journal of Soil Science
摘 要:田间试验表明:各种施肥配方对夏芝麻产量影响由大到小的顺序依次为NP〉K〉N〉P,高肥力田块,目标产量为1110.0kg hm^-2,氮肥经济合理施用量为N106.5kg hm^-2,磷肥经济合理施用量为P20,52.5kg hm^-2;中肥力田块,目标产量1011.0kg hm^-2,氮肥经济合理施用量为N129.0kg hm^-2,磷肥经济合理施用量为P20,117.0kg hm^-2;低肥力田块,目标产量759.0kg hm^-2,氮肥合理经济施用量为N147.0kg hm^-2,磷肥经济合理施用量为P2O5 64.5kg hm^-2。氮肥以底追结合和二次追施方式效果最好,比对照增产34~35%。,叶面肥增产幅度为7.7~10.4%,以喷磷酸二氢钾和喷硼效果最好。该项研究取得了显著的经济效益和社会效益。It was found that the effect of fertilization pattern on the output of sesame was in the order of NP 〉 K 〉 N 〉 P. In the high ferility plot, the target output was 1110. 0kg ha^-1 and economic application amount of nitrogen was 106.5kg ha^-1 ,phosphorus 52.5 P205 kg ha^-1 ,while those in the middle fertility plot were 1011.0 kg ha^-1 ,129.0 N kg ha^-1 ,117.0 P205 kg ha^-1 ,respectively,and those in the low fertility plot were 789.0kg ha^-1,147. ON kg ha^-1 ,64, 5 P20kg ha^-1, respectively. The best way of nitrogen fertilization was the combination of base fertilization and after manuring and twice after manuring, which increased the output by 34 -35% comparison with the control. The foiliage dressing improved the output by 7.7 - 10. 4%, in which the effect of potassium dihydrogen phosphate and boron were the best. This research had the significant economic and social benefit.
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