摘要
本交通过对平坝华山松种子园土壤肥力、针叶养分状况与华山松无性系开花结实相关性的研究．寻找出种子产量低的原因．结果表明低产的原因之一是营养生长差．表现在该园土壤缺P少K，缺B．针叶养分状况反映出B的缺乏．同时N、P、K也偏低．故而施肥是解决的措施之一．施P提高雄花量，是对照的13．5倍，施B提高雌花量和座果量，为对照的1．2倍、2倍。
This paper studied the correlation betwcen thc quantity of blooming and Seeds' production of clones and the soil fertility and fo-liar nutrition in the Pinus Armandi Seeds Orchard in Pinba county to examine the reasons why seed production was low. One of thereasons was the lowcr of thc vegetation. In the Orehard. the soil contained less K. lacking Pand B; from the content of the foliar.B is lack too, at the same time. N .P .K are lower, so using the fertilizers is one of the treatments. Using P-fertilizer (B-fertilizer)can raises the number of male flowcr (female flower and fruit ). The number is 13. 5 times (1. 2 times and 2 times as compared withthe contrast respectively.
出处
《种子》
CSCD
北大核心
1999年第5期15-17,共3页
Seed
关键词
华山松
种子园
土壤因子
结实量
Pinus Armandi Seeds Orchard Soil factors Treatments
