钾对四川紫色土棉花产量品质及生长效应的研究

• 作 者: 胡尚钦 杨晓 毛知耘 周则芳
• 机 构: 中国科学院成都山地灾害与环境研究所,西南农业大学农业化学研究所
• 出 处: 土壤通报
• 发表日期: 1997年05期
• 关键词: 产量品质 紫色土 铃数 麦克隆值 施钾 生长效应 纤维品质 铃壳 紫泥 花铃期

盆栽试验的结果表明，施钾使棕紫泥棉花铃数增加４２８％，铃重增加１３９％，产量提高６２６％；使黄红紫泥棉花铃数增加２７３％，铃重增加３６３％，产量提高７３２％。施钾使纤维麦克隆值提高１２５％，伸长度提高１１１％。施钾明显提高叶绿素含量、干物质积累和棉株体内钾的含量，但对钾在各部位的分配没有影响。

The results of pot experiment showed that potassium application increased the number of bollworm cotton bolls by 428%, boll weight by 139% and yield by 626%, and increased the boll number of yellow red purple cotton by 273% The boll weight increased by 363% and the output increased by 732%. Potassium application increased the wheat micronaire value by 12.5% ​​and the elongation by 11.1%. Potassium application significantly increased chlorophyll content, dry matter accumulation and potassium content in cotton plants, but had no effect on the distribution of potassium in various organs.