【摘 要】
：
1983～1986年在我公司试验地对丰抗5号小麦进行叶龄观察。试验地为壤土,0～20厘米土层有机质1.914％,全氮0.120％,速效磷47ppm,速效钾145ppm,亩底施有机肥3吨和种肥硫酸铵或氮磷复合
【机 构】
：
北京市南郊农场农业公司,北京市南郊农场农业公司
论文部分内容阅读
1983～1986年在我公司试验地对丰抗5号小麦进行叶龄观察。试验地为壤土,0～20厘米土层有机质1.914％,全氮0.120％,速效磷47ppm,速效钾145ppm,亩底施有机肥3吨和种肥硫酸铵或氮磷复合肥15公斤。9月30日播种,行距15～20厘米,亩基本菌17万左右,返青后两欢亩追施硫酸铵共40公斤。
From 1983 to 1986, we observed leaf age of Fengkang-5 wheat in our company. The test area was loam soil, 0-20 cm soil organic matter 1.914%, total nitrogen 0.120%, available phosphorus 47ppm, available potassium 145ppm, organic fertilizer at the end of three tons and fertilizer ammonium sulfate or nitrogen and phosphorus fertilizer 15 kg. Sept. 30 sowing, spacing 15 ~ 20 cm, about 170,000 mu of basic bacteria, after returning to two acres of acre ammonium sulfate a total of 40 kg.
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