氮磷钾对寒害腰果植株恢复生长结果的影响  

Effects of nitrogen,phosphorus and potassium on recovery growth and fruiting of cold injured cashew

作　　者：王金辉[1] 梁李宏[1] 黄伟坚[1] 张中润[1] 黄海杰[1] 

机构地区：[1]中国热带农业科学院热带作物品种资源研究所//农业部热带作物种质资源利用重点开放实验室,海南儋州571737

出　　处：《生态环境学报》2010年第1期188-190,共3页Ecology and Environmental Sciences

基　　金：中央级公益性科研院所基本科研业务费专项(No.PZS059);农业部"948"项目(No.2005-C14)

摘　　要：通过观测不同施肥处理区寒害腰果植株重新开花坐果状况,分析施肥对寒害腰果植株恢复生长的影响,并分析腰果叶片养分含量与结果量之间的关系。结果表明:氮对寒害腰果植株重新开花的花枝数影响最大,钾次之,磷影响最小,随着氮施用量的增加,植株的花枝数逐渐增大;氮是影响寒害腰果植株结果量的主要因素,植株结果量随着氮施用量的增加而增加,磷、钾各处理间的结果量均未达到统计上显著差异;在施氮肥的基础上,配施磷钾肥,可以提高寒害腰果植株结果量,9个施肥处理中以N3P3K2处理的结果量最多。in this paper, we surveyed the reflorescence and fruit setting situation of cold injured cashew in different fertilization treatment areas, analyzed the effect of fertilization level on recovery growth of cold injured cashew, and analyzed the relationship between cashew leaf nutrient content and fTuit quantity. The results indicated that, nitrogen fertilizer had the most influence on the number of flower branch of cold injured cashew, potassium fertilizer took the second place, and phosphorus fertilizer had the least influence. The number of flower branch increased with the increase of nitrogen application rate. Nitrogen fertilizer also had great effect on fruit quantity of cold injured cashew, the fruit quantity of cashew increased with the increase of nitrogen application rate, the effect of phosphorus and potassium fertilizer was not significant. On the base of nitrogen application, combined application of phosphorus and potassium can increase the fruit quantity of cold injured cashew. The fruit quantity of N3P3K2 treatment was the most in the nine fertilization treatments.

关 键 词：腰果 恢复生长 开花结果 氮磷钾 寒害 

分 类 号：Q142[生物学—生态学]