Effects of different organic residues on rice yield and soil quality

文献类型： 外文期刊

第一作者： Su Chunjiang

作者： Su Chunjiang;Wang Xiaolan;Peng Li;Wang Xiaolan;Liu Wei;Liu Wei;Li Ping;Fang Yan;Sun Lian

作者机构：

关键词： Co-composting;Leguminous plants;Soil quality indicators;Soil restoration;Spent mushroom compost

期刊名称：JOURNAL OF MOUNTAIN SCIENCE （ 影响因子：2.071； 五年影响因子：2.113 ）

ISSN： 1672-6316

年卷期： 2012 年 9 卷 5 期

页码：

收录情况： SCI

摘要： Calcaric regosols are a valuable land resource, distributed widely across western China. Soil quality has deteriorated considerably in recent years owing to the blind pursuit of economic benefits. A 2-year field experiment was carried out to evaluate the effects of using spent mushroom compost, leguminous plant (Vicia sepium L.) compost, and a combination of the two (at a 1:1 and 2:1 ratio), on rice yield and soil quality in a suburb of China. Vicia sepium L. composted with spent mushroom compost at a 1:1 ratio produced the highest grain and stover yield, grain and stover phosphorus concentration, and phosphorus uptake of rice; they were 56.5%, 93.2%, 89.3%, 198.6% and 22.2% greater than control soil, respectively. The 2:1 ratio (Vicia sepium L.: spent mushroom compost) produced the highest grain N concentration, stover N concentration, and N uptake; they were 31.6%, 31.4%, and 40.7% higher than control, respectively. Soil physical, chemical, and environmental properties were improved with the application of Vicia sepium L. composted with spent mushroom compost at a 2:1 ratio. In particular, soil water-stable aggregates, organic carbon, particulate organic carbon, total nitrogen, available potassium, and cation exchange capacity increased, whereas bulk density, pH, and phytoavailable heavy metals decreased. This organic treatment is beneficial to improve soil quality indicators, and contribute to soil restoration.

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