横县甜玉米种植区地力评价与发展思路

Soil productivity assessment and developmental thinking of maize cultivation area in Hengxian County

根据横县甜玉米主产区耕地地力评价结果,分析认为横县甜玉米老生产区域土壤属性已发生显著变化,地力水平降低,是导致甜玉米植株根系不发达,株型矮小,产量下降的主要原因之一。根据评价分析结果,提出合理轮作,用养结合,推广应用水肥一体化滴灌技术,实施甜玉米测土配方施肥技术,施用有机肥,重视秸秆还田,推广应用秸秆生物腐熟技术等对策建议,为横县甜玉米稳定可持续发展提供参考。

Based on the evaluation results of soil produ County, the soil characteristics there have been changed ctivity in sweet maize cultivation area in Hengxian obviously with productivity reduction, which is one of the major causes leading to underdeveloped root system, short stalk and yield-decreasing. According to e- valuation and analysis results, an integrated drip irrigation technology is put forward to implement counter- measures such as soil-tested ＆ formula fertilization, manure application, straw-return-field, and straw bio-decomposition etc., so as to provide references for sustainable development of sweet maize in Hengxian County.