A Preliminary Study of Topdressing in Young Plantation of Populus chifengensis No.36
- Received Date: 1990-07-19
- Available Online: 2012-12-04
Abstract: The results of topdressing test in young plantation of Populus chifengensis No.36 were analized in this paper.Conclusion:the appropriate dose of topdressing in young high-yield poplar plantation of P.chifengensis No.36 is 0.4kg urea (46% N) and 0.5kg superphosphate (14% P2O5) per tree a year.The economic benefit of topdressing with N,P,K indifferent level is also discussed in the paper.