稻田水旱轮作对土壤碳氮的平衡关系

• 作 者: 徐菁 姜玲若
• 机 构: 江苏省农科院土肥所,江苏省农科院土肥所
• 出 处: 土壤通报
• 发表日期: 1982年05期
• 关键词: 水旱轮作 双季稻 淮河以南 土壤生物 土壤养分 土壤肥力 水分状况 谷子 体变 碳氮

近十余年来,我省淮河以南地区,多栽了双季稻,许多人反映,上体变殭变烘,所以生产上有提出夏季轮种大豆、玉米等旱作来养地.夏季在高温情况下,土壤生物及微生物活动强烈,土壤处于不同作物的栽培条件下,水分状况对土壤养分的释放和积累有着很大的关系,为此,我们研究了小麦,水稻、大豆、谷子对土壤C、N平衡关系及其土壤肥力影响.

In the past ten years or so, south of the Huaihe River in our province, more double cropping rice has been planted and many people have reported that the upper body is becoming stiffer and harder so that the crops are raised in summer with dry rotation of soybean and corn. Under the condition of high temperature, the activities of soil microorganisms and microorganisms are very strong. The soil is under the cultivation conditions of different crops. The water conditions have a great relationship with the release and accumulation of soil nutrients. Therefore, we studied the effects of wheat, rice, soybean, millet Soil C and N balance and soil fertility.