论文部分内容阅读
甘蔗进入伸长期后,叶片生长快而大,根系多且发达,吸收量多、吸收力也强。因此,重施“攻茎肥”,关系着甘蔗的单茎重和产量的提高,蔗农都习惯这种施肥方法。为了探讨甘蔗“攻茎肥”经济用肥与产量的关系,笔者于1983年在吉安县横江乡老屋下进行甘蔗“攻茎肥”施不同肥料的对比试验,试验面积0.5亩,土壤为河流冲积物的潮沙土,pH值5,有机质含量2.4％,肥力水平中等,透水性好,保水保肥能力差。试验设“攻茎肥”施猪粪1.700斤、碳铵47斤、尿素20斤、复合肥(H、P、K)26斤、钙镁磷肥62斤、菜
Cane into the elongation period, the leaves grow fast and large roots and more developed, absorption and absorption is also strong. Therefore, the re-implementation of “stalk fat,” relates to the single stem weight and yield of sugarcane, sugarcane farmers are accustomed to this method of fertilization. In order to investigate the relationship between economic fertilizer and yield of sugar cane “stalk fertilizer”, the author carried out comparative experiments on different fertilizers of sugarcane “stalk fertilizer” under the old house of Hengjiang Township, Ji’an County in 1983 with 0.5 mu of test area and soil as river Tidal sandy soil of alluvial soil, pH value of 5, organic matter content of 2.4%, medium fertility level, good water permeability, poor water retention and fertility. Test set “stalk fertilizer” pig manure 1.700 kg, 47 kg of ammonium bicarbonate, urea 20 kg, 26 kg of compound fertilizer (H, P, K), 62 kg of calcium magnesium phosphate, vegetables