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本文对黑钙土、黑土中各种作物根茬留茬与否对土壤腐殖质、土壤重组有机质的组成、结合形态及某些光学性质进行了测定。结果表明,各种作物根茬留在土壤中是以非腐解态有机物发生作用的,对于改善土壤腐殖质的组成发生了良好的作用。说明作物根茬留在土壤中不仅对调节土壤有机质的平衡具有重要意义,而且发挥着很好的培肥作用。试验结果同分析土壤酶活性一样初步证明玉米根茬比大豆根茬有更好的培肥作用。
In this paper, the composition, combination morphology and some optical properties of soil organic matter, soil humus and soil were determined on stubble stubble of various crops in chernozem and black soil. The results showed that all kinds of crop stubble remain in the soil as a non-decomposing organic matter, which plays a good role in improving the composition of soil humus. It shows that crop stubble remains in the soil not only for regulating the balance of soil organic matter is of great significance, but also play a good role in fertilizing. The results of the experiment, as well as the analysis of soil enzyme activity, initially showed that maize stubble had better fertilizing effect than soybean stubble.