2021年9月21日 星期二
不同生物炭配施基肥处理对 桑树幼苗叶片品质的影响及综合评价
Effects of different biochar combined with base fertilizer treatments on leaf quality of Morus alba seedlings and comprehensive evaluation
2021年 第30卷 第3期 页码[71-77]    下载全文[0.8MB]  
摘要

对不同生物炭配施基肥处理下1年生桑树(Morus alba Linn.)幼苗的7个叶片品质指标进行了单因素方差分析和多重比较,并采用隶属函数法综合评价了不同生物炭配施基肥处理对桑树幼苗叶片品质的影响。结果表明:T1组〔添加120 g猪粪堆肥和1份化肥(包含3.00 g尿素、2.25 g磷酸二氢钾和1.50 g氯化钾)〕的半纤维素、木质素、粗蛋白和多糖含量分别较CK组(对照,不添加生物炭和基肥)升高了10.92%、20.68%、7.61%和27.17%。不同生物炭配施基肥处理下叶片品质指标差异显著,其中,T2组(添加120 g猪粪堆肥、1份化肥和150 g木炭)的半纤维素含量最高,分别较CK组和T1组升高了37.77%和24.21%;T4组(添加120 g猪粪堆肥、1份化肥和150 g竹炭)的纤维素含量最高,分别较CK组和T1组升高了12.43%和33.92%;T3组(添加120 g猪粪堆肥、1份化肥和300 g木炭)的木质素、粗蛋白和总黄酮含量均最高,分别较CK组升高了40.89%、31.48%和12.04%,较T1组升高了16.74%、22.18%和87.77%;T5组(添加120 g猪粪堆肥、1份化肥和300 g竹炭)的粗脂肪和多糖含量均最高,分别较CK组升高了24.86%和60.57%,较T1组升高了33.42%和26.26%。综合评价结果表明:供试的6个生物炭配施基肥处理组的综合评价值为0.37~0.62,均大于CK组(0.29)和T1组(0.28),并以T3组为最大。比较而言,添加木炭的2个生物炭配施基肥处理组的综合评价值均值最大(0.58),而添加稻壳炭的2个生物炭配施基肥处理组的综合评价值均值最小(0.43)。综上所述,不同生物炭配施基肥处理可明显提高桑树幼苗的叶片品质,并以木炭的效果最好。在喀斯特地区种植饲用桑树时,宜采用质量分数4%木炭配施猪粪堆肥和化肥的施肥方式。

Abstract

One-way ANOVA and multiple comparison were conducted by seven leaf quality indexes of one-year-old Morus alba Linn. seedlings under different biochar combined with base fertilizer treatments, and effects of different biochar combined with base fertilizer treatments on leaf quality of M. alba seedlings was comprehensively evaluated by using subordinate function method. The results show that hemicellulose, lignin, crude protein, and polysaccharide contents of T1 group 〔adding 120 g of pig manure compost and 1 fertilizer (containing 3.00 g of urea, 2.25 g of potassium dihydrogen phosphate, and 1.50 g of potassium chloride)〕 increase by 10.92%, 20.68%, 7.61%, and 27.17% respectively compared with those of CK group (the control, no biochar and base fertilizer). There are significant differences in leaf quality indexes under different biochar combined with base fertilizer treatments, in which, hemicellulose content of T2 group (adding 120 g of pig manure compost, 1 fertilizer, and 150 g of wood charcoal) is the highest, which increases by 37.77% and 24.21% respectively compared with that of CK group and T1 group; cellulose content of T4 group (adding 120 g of pig manure compost, 1 fertilizer, and 150 g of bamboo charcoal) is the highest, which increases by 12.43% and 33.92% respectively compared with that of CK group and T1 group; lignin, crude protein, and total flavonoids contents of T3 group (adding 120 g of pig manure compost, 1 fertilizer, and 300 g of wood charcoal) are the highest, which increase by 40.89%, 31.48%, and 12.04% respectively compared with those of CK group, and increase by 16.74%, 22.18%, and 87.77% respectively compared with those of T1 group; crude fat and polysaccharide contents of T5 group (adding 120 g of pig manure compost, 1 fertilizer, and 300 g of bamboo charcoal) are the highest, which increase by 24.86% and 60.57% respectively compared with those of CK group, and increase by 33.42% and 26.26% respectively compared with those of T1 group. The comprehensive evaluation analysis result shows that the comprehensive evaluation values of six test biochar combined with base fertilizer treatment groups are 0.37-0.62, which are larger than those of CK group (0.29) and T1 group (0.28), and that of T3 group is the largest. In comparison, the average comprehensive evaluation value of the two biochar combined with base fertilizer treatment groups added with wood charcoal is the largest (0.58), while that of the two biochar combined with base fertilizer treatment groups added with rice husk charcoal is the smallest (0.43). In summary, different biochar combined with base fertilizer treatments can obviously improve the leaf quality of M. alba seedlings, and wood charcoal has the best effect. When planting forage mulberry in Karst area, the suitable fertilization method is applying 4% (mass fraction) wood charcoal combined with pig manure compost and chemical fertilizer.

关键词桑树; 叶片品质; 生物炭; 基肥; 综合评价
Key wordsMorus alba Linn.; leaf quality; biochar; base fertilizer; comprehensive evaluation
作者陈慧1a,1b, 时正伦1a,1b, 吴永波1a,1b, 高婷1a,1b, 薛建辉1a,2
所在单位1. 南京林业大学: a. 生物与环境学院, b. 南方现代林业协同创新中心, 江苏 南京 210037;2. 江苏省中国科学院植物研究所(南京中山植物园), 江苏 南京 210014
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下载次数163
基金项目国家重点研发计划重点专项(2016YFC0502605)