STUDY ON THE APPLICATION OF CHEMICAL FERTILIZERS IN BAMBOO STUMP
Shi Quantai Bian Yaorong (The Subtropical Forestry Institute of Chinese Academy of Forestry)
Chemical fertilizers applied into bamboo stumps can be absorbed by bamboos more easily. They will not be washed away in quantity or taken in by weeds. Compared with the ditch fertilization method and the around root fertilization method, the above mentioned method has the advantages of saving labour and avoiding the loss of water aftd soil. In addition, it will acceJerate the decomposition of bamboo stumps without hurting rhizeroes. If ammonium bicarbonate is applied, the rate of appearing bamboo shoots and the yield of bamboo culms will be raised. The fertilizer efficiency is more or less the same as that of the urea application in ditch(both of the fertilizors have the same amount of nitrogen content). Besides, this method will overcome the disadvantages of ammonium bicarbonate being not Welcome, because of its low effect and causing a large humber of rhizomes to decay. Thus, it will not only provide a new fertilization method for high yield of ph. pubescens, but also open up a new market—bamboo areas for unsalable ammonium bicarbonate.