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贵州省中低产田、土约占总耕地面积的78％左右。但其年单产量只及高产田、土的1/5～2/3。欲提高全省粮食总产量,必须对中低产田、土实行彻底改良。 所谓高产田、土,就是适应性广,生产性能良好,抗御自然灾害能力强,具有高产、稳产特性的土壤;在现时耕作栽培水平下年产粮每亩1000斤以上者。如潮油泥、紫油泥、黄油泥、龙凤大眼泥、黄油沙土、紫油沙土等。所谓低产田、土,就是适种性窄,生产性能不佳,抗御自然灾害能力弱,具有产量
Guizhou low-yielding fields, soil about 78% of the total area of cultivated land. However, its annual yield only and high yield fields, soil 1/5 ~ 2/3. To improve the province’s total grain output, we must thoroughly improve the middle and low-yielding fields and soil. The so-called high-yield fields and soils are those that have wide adaptability, good production performance, strong ability of resisting natural disasters and high yield and stable yield. At the present level of cultivation and cultivation, they produce annual output of more than 1000 kg of grain per mu. Tidal oil sludge, purple sludge, butter mud, Longfeng Dazhitan, butter sand, purple sand and so on. The so-called low-yielding fields, soil, that is narrow range of fitness, poor production performance, ability to resist natural disasters, with a yield