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作 者:蒋际谋[1] 郑少泉[1] 刘友接[1] 徐树传[2]
机构地区:[1]福建省农业科学院果树研究所,福建福州350013 [2]福建省农业科学院耕作所,福建福州350013
出 处:《亚热带植物科学》2000年第4期5-8,共4页Subtropical Plant Science
基 金:福建省科委资助(97-Z-133)
摘 要:幼龄枇杷园套种科杂1号,显著提高土壤肥力,土壤速效P由清耕对照的痕迹增至18.27 mg/kg,全P和速效K分别增加260.0%和183.6%,有机质、全N、全K和速效N的增幅在40%左右;研究还表明,套种提高了枇杷树体营养和促进丰产树冠的形成,叶片N、P、K、Ca、Mg含量均比对照区增加9%以上,冠幅和枝梢数分别增加27.3%和57.7%,枝梢抽穗率提高86.8%,同时,套种对改善果实品质也有一定作用。Soil fertility was significantly improved when Keza 1 soybeans were interplanted in the young loquat orchard. Rapidly available phosphorus in soil increased from trace to 18.27mg/kg, total phosphorus and rapidly available potassium increased by 260.0% and 183.6%, organic matter, total potassium, total nitrogen and rapidly available nitrogen increased by about 40%, respectively. The results also showed that under-crop sowing improved the tree nutrition and promoted the tree growth. The contents of nitrogen, phosphorus, potassium, calcium and magnesium in leaves increased by 9% and above, the crown diameters, shoot number and the percentage of head sprouting increased by 27.3%, 57.7% and 86.8%, respectively. The quality of fruit also improved after under-crop sowing.
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