不同改良措施对雷竹林复耕土壤肥力和作物产量的影响

doi:10.16178/j.issn.0528-9017.20240331

摘要/Abstract

摘要：

为探究不同改良措施对雷竹林复耕土壤肥力和作物产量的影响,设置对照(CK)、常规施肥(CF)与综合措施(CM)共3个处理,开展轮作试验。结果显示,土壤理化性质不仅受不同处理的影响,还受作物栽培季节及其交互作用的共同影响。至第三季作物收获时,各处理间的土壤碱解氮、有效磷、速效钾、有机质含量及pH值均无显著差异。CF与CM处理提高了土壤中酸杆菌门和绿弯菌门的相对丰度,同时降低了变形菌门和拟杆菌门的相对丰度。在三季作物中,CF和CM处理均能提高作物产量。本研究为复耕土壤的改良提供了有效途径与理论依据。

关键词: 土壤改良, 轮作, 雷竹林, 复耕地, 生物质炭

Abstract:

To investigate the effects of different improvement measures on soil fertility and crop yield in reclaimed Lei bamboo forest, a rotation experiment was conducted with three treatments: control (CK), conventional fertilization (CF), and comprehensive measures (CM). Results showed that soil physicochemical properties were influenced not only by the different treatments but also by the crop season and their interactions. By the harvest of the third crop season, no significant differences were observed among the treatments in terms of soil alkali-hydrolyzable nitrogen, available phosphorus, available potassium, organic matter content and pH value. Both CF and CM treatments increased the relative abundance of Acidobacteria and Chloroflexi while reducing the relative abundance of Proteobacteria and Bacteroidetes. Over the three crop seasons, both CF and CM treatments enhanced crop yield. This study provides effective strategies and a theoretical basis for improving reclaimed farmland.

Key words: soil improvement, crop rotation, Lei bamboo forest, reclaimed farmland, biochar

中图分类号:

S156

卜爱爱, 胡娟欣, 方书琴, 薛兆琨, 俞柯汝, 方先芝, 马嘉伟, 柳丹, 叶正钱. 不同改良措施对雷竹林复耕土壤肥力和作物产量的影响[J]. 浙江农业科学, 2025, 66(12): 3066-3072.

BU Aiai, HU Juanxin, FANG Shuqin, XUE Zhaokun, YU Keru, FANG Xianzhi, MA Jiawei, LIU Dan, YE Zhengqian. Effect of different improvement measures on soil fertility and crop yield in reclaimed Lei bamboo forest[J]. Journal of Zhejiang Agricultural Sciences, 2025, 66(12): 3066-3072.

图/表 3

图1 不同处理下土壤的养分含量和pH值柱上无相同小写字母表示差异显著(p<0.05)。图3同。

Fig.1 Nutrient content and pH value of soil under different treatments

图2 不同处理下土壤微生物在门水平上的相对丰度

Fig.2 Relative abundance of soil microorganisms at phylum level under different treatments

图3 不同处理下的作物产量

Fig.3 Crop yield under different treatments

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