生物、有机和化学肥料对水稻籽粒产量的效果

• 作 者: 李素华
• 出 处: 四川农业科技
• 发表日期: 1985年04期
• 关键词: 水稻籽粒 生物肥 毫克当量 有效氮 随机区组设计 高锰酸钾法 氮肥水平 鲜重 第二年 混施

印度的Saravanan等于1983年8月至第二年1月,在塔米拉得水稻研究所,对水稻施用生物肥、有机肥和化肥的效果进行了研究。土壤为冲积沙壤土,有效氮137ppm(碱性高锰酸钾法),每100克35毫克当量的CEC,pH6.6。试验为随机区组设计,重复三次。每公顷施用PK40公斤,尿素(N)60或90公斤,厩肥0.609％,绿肥0.518％(鲜重),生物肥料azalla0.395％(鲜重)。移栽前1周将肥料施入。

Saravanan, India, is equivalent to the effect of applying biological fertilizer, organic fertilizer and chemical fertilizer on rice in the Tamirad Rice Research Institute from August 1983 to January of the following year. Soil is alluvial sandy loam with 137 ppm of available nitrogen (alkaline potassium permanganate method), 35 mg equivalents per 100 g of CEC, pH 6.6. The trial was designed as a randomized block and repeated three times. PK 40 kg / ha, 60 or 90 kg of urea (N), 0.609% of manure, 0.518% of green manure and 0.395% of fresh weight of biological fertilizer azalla. Fertilizer is applied 1 week before transplanting.