| 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 |
| Key Words: biochar irrigation farming sandy soil soil property soil nutrition corn yield |
| Author Name | Affiliation | | ZHANG Yun-shu | Institute of Soil, Fertilizer, and Agricultural Water Conservation, Xinjiang Academyof Agricultural Sciences, Urumqi， Xinjiang 830091, China | | TANG Guang-mu | Institute of Soil, Fertilizer, and Agricultural Water Conservation, Xinjiang Academyof Agricultural Sciences, Urumqi， Xinjiang 830091, China | | GE Chun-hui | Institute of Soil, Fertilizer, and Agricultural Water Conservation, Xinjiang Academyof Agricultural Sciences, Urumqi， Xinjiang 830091, China | | PU Sheng-hai | Institute of Soil, Fertilizer, and Agricultural Water Conservation, Xinjiang Academyof Agricultural Sciences, Urumqi， Xinjiang 830091, China | | XU Wan-li | Institute of Soil, Fertilizer, and Agricultural Water Conservation, Xinjiang Academyof Agricultural Sciences, Urumqi， Xinjiang 830091, China | | FAN Yan-min | College of Grassland and Environmental Science of Xinjiang Agricultural University, Urumqi， Xinjiang 830052, China |
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| Abstract: |
| 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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