DEEP FERTILIZER PLACEMENT IMPROVES RICE GROWTH AND YIELD IN ZERO TILLAGE

文献类型: 外文期刊

第一作者: Du, B.

作者: Du, B.;Luo, H. W.;He, L. X.;Zheng, A. X.;Chen, Y. L.;Zhang, T. T.;Tang, X. R.;Du, B.;Luo, H. W.;He, L. X.;Zhang, T. T.;Tang, X. R.;Wang, Z. M.;Hu, L.

作者机构:

关键词: zero tillage; rice; deep placement of fertilizer; grain yield; photosynthesis; chlorophyll; dry matter accumulation

期刊名称:APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH ( 影响因子:0.711; 五年影响因子:0.796 )

ISSN: 1589-1623

年卷期: 2018 年 16 卷 6 期

页码:

收录情况: SCI

摘要: Effects of deep fertilizer placement on rice growth and yield were investigated with two rice cultivars Meixiangzhan2 and Xiangyaxiangzhan. Four treatments of pre-transplant tillage + fertilizer application were set: (CK) twice puddling with rotary cultivator + manual surface broadcast; (CD) twice puddling through rotary cultivator + 10-cm deep mechanized placement; (ZB) no pudding + manual surface broadcast; (ZD) no pudding + 10-cm deep mechanized placement. Treatments CD and ZD both significantly improved the grain yield and panicle number unit area compared with treatments CK and ZB. Dry accumulation, chlorophyll contents and net photosynthetic rate at both the heading stage and maturity stage were enhanced by the deep fertilizer placement. Thus, we think the benefits of mechanical deep fertilizer placement have potential to break the production limitation and popularization in conservation tillage.

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