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一、近郊蔬菜生产概况及菜园土主要类型据1981年统计,全市现有蔬菜基地45700亩。主要蔬菜种类有80多个,其栽培分为早春、大春、早秋及秋冬四大季,复种指数4左右,平均一季亩产量为2000—3000斤,高的可达8000—10000斤。近郊的菜园土主要是中生界侏罗系紫色砂、泥岩发育的紫色土,新生界第四系新冲积物发育的潮土,中生界三迭系砂岩,石灰岩、泥岩发育的黄壤和黄色石灰土等,共4个土类,包括9个f2属、40个土种,土壤发育较浅,矿质养分丰富,水热条件好,肥力水平较高.
First, the outskirts of vegetable production and the main types of garden soil According to the 1981 statistics, the city’s existing 45700 acres of vegetable base. The main types of vegetables are more than 80, the cultivation is divided into early spring, spring, early autumn and autumn and winter seasons, cropping index 4 or so, the average yield per mu for 2000-3000 pounds, up to 8000-10000 pounds. The vegetable garden soil in the suburbs is mainly the Jurassic purple sandstone of the Mesozoic, the purple soil with mudstone development, the fluvial soil of Cenozoic Quaternary new alluvial sediments, Triassic sandstone of Mesozoic, limestone, yellow soil with yellow mudstone and yellow Lime soil, a total of 4 soil types, including 9 f2 genus, 40 soil species, shallow soil development, rich mineral nutrients, hydrothermal conditions, high levels of fertility.