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首页> 外文期刊>土壤圈（英文版） >Some Fertility Characteristics and Fertilizer Requirements of a Newly Reclaimed Upland Red Soil Derived from Quaternary Red Clay
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Some Fertility Characteristics and Fertilizer Requirements of a Newly Reclaimed Upland Red Soil Derived from Quaternary Red Clay

机译：第四纪红黏土新开垦的旱地红壤的肥力特征和肥料需求

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摘要

A series of field experiments from 1990 to 1994 in Yingtan, Jiangxi Province, were conducted on an upland red soil derived from Quaternary red clay which had been reclaimed three years before the experiments, in order to study the fertility characteristics and fertilizer requirements of the newly reclaimed soil. The field experiments included that on nutrient characteristics and fertilizer effect, that on K-supplying potential and K-Mg relationship, that on fertilization rates of K and N, etc. The newly reclaimed upland soil was low in both N and P, and its responses to nitrogen and phosphate application were very significant. The K-supplying potential was also low, so the soil was highly responsive to K fertilizer. The effect of Ca and Mg fertilizers was not so great for the reason that certain amounts of Ca and Mg were incorporated into the soil through application of calcium magnesium phosphate during land leveling before the experiments. Among the four micronutrients, B, Mo, Zn and Cu, B had the greatest effect on the soil. The fertilizer requirements of the soil were in an order of P and N ＞ K ＞ lime and B ＞ Mg ＞ Mo, Zn and Cu. Eight crops tested had different fertilizer-requiring characteristics. Rapeseed was very sensitive to P and B fertilizers. Barely was especially sensitive to P and lime and it also responded to B, Mo, Zn and Cu. And sweet potato was especially sensitive to K.
机译：1990年至1994年在江西省鹰潭市进行了一系列田间试验，对试验前三年已复垦的第四纪红黏土旱地红壤进行了研究，以研究新肥的肥力特征和肥料需求。开垦的土壤。田间试验包括养分特性和肥料效应，钾素供应势和钾镁关系，钾肥和氮肥的施肥率等。新开垦的旱地土壤氮和磷均较低，其养分含量低。对氮和磷的施用的响应非常显着。钾的供应潜力也很低，因此土壤对钾肥具有高响应性。钙和镁肥料的作用不是很大，原因是实验前在土地平整期间通过施用磷酸钙镁将一定量的钙和镁掺入到土壤中。在四种微量元素中，B，Mo，Zn和Cu对土壤的影响最大。土壤的肥料需求量为P和N＞ K＞石灰和B＞ Mg＞ Mo，Zn和Cu。测试的八种作物具有不同的需肥特征。油菜对磷和硼肥料非常敏感。裸露对磷和石灰特别敏感，并且对硼，钼，锌和铜也有反应。红薯对钾特别敏感。

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