黔北撑绿竹林基地施肥供需状况与技术措施

Study on the fertilizer application of Bambusapervariabilis×Dendrocalamopsisgrandis bamboo pulp forest base in northern Guizhou

通过对黔北纸浆原料林基地种植农户施肥情况的调查,结合基地土壤及撑绿竹体内营养物质的测定分析,研究黔北撑绿竹纸浆林基地的施肥供需状况及技术措施。结果表明,目前基地施肥农户比例较少,仅为15.9%;施肥量水平低下,氮、磷、钾的施肥质量比为6∶1∶0,与适宜氮、磷、钾质量比约5∶1∶5存在较大差异;基地施肥时间普遍集中于4月初,施肥时间明显滞后。对此,针对施肥种类、施肥量、施肥方式、施肥时间等方面提出科学的施肥技术方案。

Based on the investigation about the status of fertilizer application in Bambusapervariabilis x Dendrocalamopsisgrandis bamboo pulp forest base in northern Guizhou and the analysis of nutrients in the soil and Bambusapervariabilis × Dendrocalamopsisgrandis bamboo, the fertilizing techniques and measures in this area were studied. The results indicated that farmers who fertilized the soil in bamboo pulp forest base accounted for a little proportion,only 15.9% in this base ; also the NPK ratio was 6：1 ： 0, which was quite different from the proper ratio of NPK （ 5： 1 ： 5 ） in this base. Furthermore the fertilizing time is at the beginning of April,which lags behind the shooting time of the Bambusapervariabilis × Dendrocalamopsisgrandis bamboo;also there are many ambiguities in the fertilizer application. A scientific fertilization technical scheme was presented for Bambusapervariabilis × Dendrocalamopsisgrandis bamboo breeding in this base.