江西省赣州地区现有低产田(主要是红壤性低产田和冷浸性低产田)160多万亩,约占耕地面积的28%。该地区的广大干部、群众和科技人员决心力争在两、三年内把这些低产田都改造过来,达到亩产600斤以上。据赣州地区农科所分析,红壤性低产田的农业生产特点是:①受红壤母质的影响,一般粘性较大,土层较浅(只有3～4寸),结构较紧实,耕作困难。②有效养分很少,对氮肥、磷肥和石灰的反应,尤其是对氮肥的反应很敏感。土壤为酸性。③灌溉水源较差,在夏、秋雨水稀 More than 1.6 million mu of existing low-yield fields (mainly red-paddy low-yielding fields and cold-soaked low-yielding fields) are found in Ganzhou in Jiangxi Province, accounting for about 28% of the total cultivated area. The cadres, the masses and the scientific and technological personnel in the region are determined to strive to transform these low-yield fields in more than two or three years to over 600 pounds per mu. According to analysis by Ganzhou Agricultural Science Institute, the characteristics of agricultural production in red soil low-yielding fields are as follows: (1) Affected by the parent material of red soil, it is generally more viscous and has a shallower soil layer (only 3-4 inches). ② very little effective nutrients, nitrogen, phosphate and lime reaction, especially the response to nitrogen is very sensitive. Soil is acidic. ③ poor irrigation water supply, in summer, autumn rainfall