不同土壤改良措施对机械压实酸化蔗地土壤理化性质及微生物群落结构的影响

罗俊,林兆里,李诗燕,阙友雄,张才芳,杨仔奇,姚坤存,冯景芳,陈建峰,张华

Effects of different soil improvement measures on soil physicochemical properties and microbial community structures in mechanically compacted acidified sugarcane field

Jun LUO,Zhao-Li LIN,Shi-Yan LI,You-Xiong QUE,Cai-Fang ZHANG,Zai-Qi YANG,Kun-Cun YAO,Jing-Fang FENG,Jian-Feng CHEN,Hua ZHANG

表1 试验实施方案

Table 1 Test implementation scheme

土壤改良处理 Soil amelioration treatment	实施方案 Implementation plan	N-K-P (kg hm^-2)	总投入水平 Total input level (Yuan hm^-2)
对照 Control (B₁)	基肥51% (17-17-17), 复合肥769 kg hm^-2 Base fertilizer 51% (17-17-17), compound fertilizer 769 kg hm^-2	130.73-130.73-130.73	2475
松土精 Loose soil essence (B₂)	基肥51% (17-17-17), 复合肥769 kg hm^-2, 增施高分子生物聚合物松土精9.23 kg hm^-2 Base fertilizer 51% (17-17-17), compound fertilizer 769 kg hm^-2, additional application of macromolecule biopolymer loosening soil essence 9.23 kg hm^-2	130.73-130.73-130.73	3150
生物菌肥 Biological bacterial fertilizer (B₃)	基肥51% (17-17-17), 复合肥769 kg hm^-2, 增施有效活菌数 ≥ 50亿 g^-1的生物菌肥30.8 kg hm^-2 Base fertilizer 51% (17-17-17), compound fertilizer 769 kg hm^-2, additional biological fertilizer with effective living bacteria number ( > 5 billion g^-1) 30.8 kg hm^-2	130.73-130.73-130.73	3525
有机肥 Organic fertilizer (B₄)	基肥51% (17-17-17), 复合肥461 kg hm^-2, 增施有机质 ≥ 56%, N-P-K (2.6-4.1-3.5)有机肥1277 kg hm^-2 Base fertilizer 51% (17-17-17), compound fertilizer 461 kg hm^-2, additional application of organic matter (>56%) and N-P-K (2.6-4.1-3.5) organic fertilizer 1277 kg hm^-2	112.31-130.73-123.08	4410
生石灰 Quick lime (B₅)	基肥51% (17-17-17), 复合肥769 kg hm^-2, 增施生石灰1569 kg hm^-2 Base fertilizer 51% (17-17-17), compound fertilizer 769 kg hm^-2, additional application of quicklime 1569 kg hm^-2	130.73-130.73-130.73	2925