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我市低山丘陵主要分布在盯胎、洒洪、金湖等五个县,面积2800km2,占全市总土地面积的14.61%,耕地占总耕地面积的12%.地形起伏,土质多属黄棕壤土,结构紧密,质地粘重,耕性差,土壤肥力低,据调查,耕层土壤有机质一般在0.85%一1,o%,全氮量0.04%~0.05%,全磷0.025%一0.03%.速效磷2.0一3.sppM,速效钾105一14oppM,远低于其它土壤.不少地区蓄水工程设施少,灌溉水源没有保证,抗早能力低;顺坡耕作多,土壤保水能力差
The city’s low hills and hills are mainly distributed in five counties, such as stare, sprinkle flood and Jinhu, with an area of 2800 km2, accounting for 14.61% of the total land area of the city and arable land accounting for 12% of the total cultivated land. Loam, compact structure, sticky texture, poor soil fertility, low soil fertility, according to the survey, the topsoil generally organic matter 0.85% a, o%, total nitrogen 0.04% ~ 0.05%, 0.025% of total phosphorus 0.03%. Available phosphorus 2.0 a 3.sppM, available potassium 105 a 14oppM, much lower than other soil .In many areas less water storage facilities, irrigation water is not guaranteed, early resistance ability is low; slope farming, soil water retention capacity is poor