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广东全省4000多万亩水田中,年亩产800斤以下的低产田有1500多万亩。这些低产田增产潜力大,只要针对低产原因采取相应的整治措施后,一般每年可增产一、二百斤以上,而且投资少,见效快,增产显著。因此,大力改造低产田、建设高产稳产农田是迅速发展我省农业的关键措施。我省的低产田类型很多,主要的、占面积最大的有砂质田、粘土田、黄泥田、冷底田、咸田、成酸田、结粉田和渍水田等类型共有1900多万亩,其次为炭质黑泥田、石灰板结田、白鳝泥田和矿毒田等类。现将主要低产田的土壤性状,低产原因和改良措施分述如下。
More than 4,000 mu of paddy fields in Guangdong province have more than 1,500 mu of low-yield fields with an annual output of 800 kilograms or less per mu. These low-yield fields have great potentials for increasing production. As long as the corresponding remediation measures are taken for low-yielding causes, they generally yield more than one or two hundred kilos per year, with less investment, quick returns and remarkable increase in output. Therefore, vigorously remoulding low-yielding fields and building high-yield and stable-yield farmland are the key measures for the rapid development of agriculture in our province. There are many types of low-yielding fields in our province. The main types of fields with sandy areas, clay fields, yellow mud fields, cold-bottom fields, salty fields, acid-producing fields, knotted fields and paddy fields occupy the largest area of more than 1900 mu , Followed by charcoal black mud field, lime plate knot field, eel mud fields and mineral fields and other categories. Now the main low-yielding soil properties, low yield causes and improvement measures are described below.