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| 荔枝营养生长与生殖生长的营养特点及配方施肥研究 | |
| 引用本文： | 何永群,龙淑珍,李志,韦昌比.荔枝营养生长与生殖生长的营养特点及配方施肥研究[J].广西农业科学,2010,41(5):452-455. |
| 作者姓名： | 何永群 龙淑珍 李志 韦昌比 |
| 作者单位： | 1. 广西农业科学院农业资源与环境研究所,南宁,530007 2. 防城区农业局,广西防城,538021 3. 灵山县农业局,广西灵山,535400 |
| 摘 要： | 2001～2008年以8—10年树龄三月红荔枝为试材，进行荔枝营养生长期与生殖生长期氮磷钾需求特点及配方肥、进口复合肥、通用复混肥施用效果对比研究。结果表明，荔枝营养生长期与生殖生长期氮磷钾营养存在较大差异，采果后第1次抽梢转绿将成熟营养生长期叶片氮磷钾含量之比为1．000：0．170：0．518，秋梢老熟生殖生长期叶片氮磷钾含量之比为1．000：0．172：0．711，并粒生殖生长期叶片氮磷钾含量之比为1．000：0．156：0．680；在同等氮磷钾总养分施用条件下，配方肥处理荔枝鲜果平均产量33．145t／ha，分别比进口复合肥、通用复混肥增产10．76％、17．93％，增收12753、20097元／ha。因此，荔枝营养生长期采用高氮低钾施用配方，生殖生长期采用低氮高钾施用配方，可满足荔枝正常生长发育对氮磷钾养分的平衡需求，显著提高肥料利用率。 |
| 关 键 词： | 荔枝 营养生长 生殖生长 营养特点 配方施肥 |
Status of N,P and K contents at different growth stages of litchi and effect of formula fertilization techniques |
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| HE Yong-qun,LONG Shu-zhen,LI Zhi,WEI Chang-bi.Status of N,P and K contents at different growth stages of litchi and effect of formula fertilization techniques[J].Guangxi Agricultural Sciences,2010,41(5):452-455. | |
| Authors: | HE Yong-qun LONG Shu-zhen LI Zhi WEI Chang-bi |
| Institution: | 1 Agricultural Resources and Environment Research Institute, Guangxi Academy of Agricultural Sciences, Nanning 530007, China; 2 Agricultural Bureau of Fangcheng District, Fangchenggang, Guangxi 538021, China; 3 Agricultural Bureau of Linshan County, Lingshan, Guangxi 535400, China) |
| Abstract: | The studies have been carried out during the year 2001-2008 using 8-10 years old Litchi tree variety Sanyuehong. The N, P and K contents during vegetative and reproductive stage of litchi were studied and formula fertilizer, imported compound fertilizer, common compound fertilizer were applied to investigate their effects on yield, economic traits and benefits. The ratios of N, P and K contents at vegetative and reproductive stage of litchi differed greatly. The N：P：K ratios in leaves at the first shoots greening premature of vegetative stage after harvest, autumn shoots aging of reproductive stage, and earlier stage of embryo development, were found to be 1.000：0.172：0.711, 1.000：0.156：0.680 and 1.000：0.156： 0.680, respectively. With the same N, P and K nutrient contents in different fertilizer treatments, the yield of fresh litchi fruit applied with formula fertilizer was 33.145 t/ha which was increased by 10.76, 17.93% with 12753.00 and 20097.00 Yuan RMB/ha increase in income as compared to imported compound fertilizer and common compound fertilizer. Therefore, applying formula fertilizer with higher nitrogen and lower potassium at vegetative stage, and lower potassium and higher nitrogen at reproductive stage of litchi could meet the balanced requirement of N, P and K for the proper growth and development of litchi and increase the fertilizer utilization significantly. |
| Keywords: | Lichi vegetative growth reproductive growth nutritional characteristics formula fertilizer |
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