新型包膜缓释肥对大白菜生理特性、产量及品质的影响
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“十一五” 国家科技支撑计划项目(课题编号:2006BAD10B07)


Effect of homemade coated release fertilizers on physiological characteristics,yield and quality of Chinese cabbage
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    摘要:

    以粉煤灰和有机粘结剂等为包膜材料,对普通复合肥料(N-P2O5-K2O:15-15-15)进行包膜,制备了N-P2O5-K2O分别为14.25-14.25- 14.25、13.5-13.5-13.5和12.75-12.75-12.75的3种包膜缓释肥料。通过田间试验,研究了包膜缓释肥料对大白菜生理特性、产量以及品质的影响。结果表明,在施肥水平相同的情况下,与普通复合肥相比,三种包膜缓释肥料可以提高大白菜生长后期叶片叶绿素含量、净光合速率、蒸腾速率和气孔导度,有效地降低叶片气孔限制值Ls;3种粉煤灰包膜复合肥处理株高增加了0.13-1.00cm,球茎增加了0.01-2.26cm,叶长增加了0.77-1.90cm,叶宽增加了-0.63-3.47cm,单株结球质量提高10.1%-33.3%;同时,施用粉煤灰包膜缓释肥可以显著降低大白菜功能叶的NO3--N含量,也一定程度上降低了有机酸含量,提高收获期大白菜球叶中可溶性糖含量、糖酸比以及Vc含量。

    Abstract:

    Three controled release fertilizers, the ration of N-P2O5-K2O which were 14.25-14.25-14.25、13.5-13.5-13.5 and 12.75-12.75-12.75, coated with fly ash and organic agglomerant, were made of common compound fertilizer (N-P2O5-K2O:15-15-15). A field experiment was conducted to study the effect of coated release fertilizers on physiological characteristics, yield and quality of Chinese cabbage. The result showed that the coated release fertilizers could increase the leaf chlorophyll content, photosynthetic rate , transpiration rate and stome conductance and decrease the leaf stomata limitation at same fertilizer level. Comparing to common compound fertilizer, the coated release fertilizers increased the plant height 0.13-1.00cm, diameter 0.01-2.26cm, length 0.77-1.90cm, wide -0.63-3.47cm. At the same time,. the coated fertilizers improved the per plant weight of Chinese cabbage 10.1%-33.3%.In addition, the coated release fertilizers decreased the NO3--N, organic acid contents, and improved the soluble sugar, sugar-acid ratio and Vc contents of the leaf at the harvest stage.

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邱现奎,董元杰,胡国庆,王艳华.新型包膜缓释肥对大白菜生理特性、产量及品质的影响[J].土壤学报,2011,48(2):375-382. DOI:10.11766/trxb200907290336 dongyuanjie. Effect of homemade coated release fertilizers on physiological characteristics, yield and quality of Chinese cabbage[J]. Acta Pedologica Sinica,2011,48(2):375-382.

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  • 收稿日期:2009-07-29
  • 最后修改日期:2009-10-23
  • 录用日期:2009-11-30
  • 在线发布日期: 2010-12-17
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