The crack fertilization technique effectively increases soybean production in upland fields converted from paddies
The crack fertilization technique effectively increases soybean production in upland fields converted from paddies
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裂缝施肥技术有效提高旱田大豆产量
DOI：
10.1080/1343943x.2020.1743188
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
M. Iijima
中科院分区：
文献类型：
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作者：
Yamane;K.;Y. Fudano;N. Takao;T. Sugiyama;Y. Izumi;H. Daimon;H. Tsuji;N. Murakami;M. Iijima
我们研究了一种名为裂缝施肥的新型大豆施肥技术的有效性，该技术涉及通过中期耕作期间种植行之间形成的裂缝将生物炭上的根瘤细菌施用于大豆根部。在本研究中，在由稻田转变的旱田中调查了裂缝施肥的因素和时机。研究的变量是：1）在不使用任何农业材料的情况下形成裂缝，2）使用生物炭或3）生物炭上的根瘤细菌形成裂缝。处理时期为：1) 播种前，2) 中期耕作期间，3) 两个时期均进行。还测试了裂缝施肥和减少耕作的组合。裂缝施肥增产方法为裂缝形成与施用生物炭相结合，处理最有效时期为少耕田播种前。常规耕地和少耕田的种子产量与由稻田转化的旱地的种子产量相当。这些结果表明，播种前刮擦土壤表面以除去杂草后将生物炭施用到裂缝中是提高旱田大豆产量的实用方法。
We have investigated the effectiveness of a new soybean fertilization technique, named crack fertilization, which involves the application of nodule bacteria on biochar to soybean roots through cracks formed between planting rows during midterm tillage. In the present study, the factors and timing of crack fertilization were investigated in an upland field converted from a paddy. The variables investigated were: 1) crack formation without the application of any agricultural materials, and 2) the application of biochar or 3) nodule bacteria on biochar into cracks. The treatment periods were: 1) before sowing, 2) during midterm tillage, and 3) during both periods. The combination of crack fertilization and reduced tillage was also tested. The method of crack fertilization that increased yield was the combination of crack formation and the application of biochar, and the most effective period for the treatment was before sowing in the reduced tillage field. Seed yields in conventional and reduced tillage fields were comparable in the upland field converted from the paddy. These results suggest that the application of biochar into cracks after scratching the soil surface to remove weeds before sowing is a practical method of increasing soybean yield in upland fields converted from paddies.