| 张云舒,唐光木,葛春辉,蒲胜海,徐万里,范燕敏.生物炭对灌耕风沙土土壤性质及玉米产量的影响[J].干旱地区农业研究,2018,36(6):180~183 |
| 生物炭对灌耕风沙土土壤性质及玉米产量的影响 |
| Effects of biochar on soil properties and corn yield of irrigated sandy soil |
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| DOI：10.7606/j.issn.1000-7601.2018.06.27 |
| 中文关键词: 生物炭 灌耕风沙土 土壤性状 土壤养分 玉米产量 |
| 英文关键词:biochar irrigation farming sandy soil soil property soil nutrition corn yield |
| 基金项目:国家自然科学基金项目（31560173）；新疆农业科学院青年基金（xjnkq-2015002） |
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| 中文摘要: |
| 针对灌耕风沙土养分贫瘠，保水保肥性能差等突出问题，采用田间微区定位试验，研究不同施用量生物炭对灌耕风沙土土壤性质及玉米产量的影响。试验设置5个处理：(1）不施炭（CK）；（2）22.5 t·hm-2生物炭（1%BC）；（3）67.5 t·hm-2生物炭（3%BC）；（4）112.5 t·hm-2生物炭（5%BC）；（5）225.0 t·hm-2生物炭（10%BC）。五年定位试验结果表明：与对照相比，施用生物炭能显著降低灌耕风沙土土壤容重降低了2.8%~12.6%；生物炭施用显著增加灌耕风沙土土壤全氮、有机质、速效钾及阳离子代换量含量，分别增加了7.9%～28.6%、47.2%～148.3%、8.9%～29.6%、6.7～19.8%；生物炭施用玉米产量提高了10.2%～42.1%。研究表明，施用生物炭能有效改善灌耕风沙土的土壤质地和养分状况，提高灌耕风沙土土壤肥力，增加作物产量。 |
| 英文摘要: |
| To resolve the problems of nutrient depletion, low water holding capacity, and poor soil fertility in irrigated sandy soils, a 5-year fixed field experiment was conducted to study the effects of biochar application on soil properties and corn yield. The experiment included five treatments: 0 kg·hm-2, 22.5 t·hm-2，67.5 t·hm-2, 112.5 t·hm-2, and 225.0 t·hm-2 of biochar. The results of five years experiment showed that, compared with CK, application of biochar decreased soil bulk density by 2.8%~12.6%, and significantly increased the contents of total N, organic carbon, available K, and cation exchange capacity by 7.9%~28.6%, 47.2%~148.3%, 8.9%~29.6%, and 6.7%~19.8%, respectively. The corn yield was increased by 10.2%~42.1% by biochar application. The study showed that application of biochar in the irrigated sandy soil could significantly improve soil physical and chemical properties, nutrient utilization efficiency, and soil fertility. Consequently, it can increase the crop yield. |
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