不同沼液用量对油茶生长及果实品质的影响

摘要

In order to providea scientiifc basisfor therational use of biogas slurry, taking six-year-old Camellia oleifera forestasmaterials,an experimentwas designed byrandomized blockmethod,andifve experimental treatments (0, 10, 20, 30, 40kg biogas slurry per plant, namedasB0,B1,B2,B3andB4)were carried out to study effects of biogas slurry dosages ongrowthandfruitqualityin C. oleifera. Theresults showed that biogas slurry could effectively promote vegetativegrowth ofC. oleifera,and signiifcantlyimpactedground diameterand crownwidthgrowth of C. oleifera. Comparedwith the CK, the yields ofB2andB3 treatmentswereincreased by 25.45%and 4.1%respectively. Among theifve treatments,B3 treatment had the best effects onfruitquality ofC. oleifera. Comparedwith the CK, singlefruit massinB3 treatmentwasincreased by 8.83%,fruit transverse diameterwasincreased by 10.21%,andfruitlongitudinal diameterwasincreased by 9.37%. The correlationanalysisresults of yieldand thevegetativegrowthindexes showed that heightincrementwas the best correlativewith yield ofC. oleifera. In summary,B3 treatment (30kg per plant) could improvegrowthand yield ofC. oleifera.%为给沼液的合理利用提供科学依据,以6年生油茶林为试验材料,采用随机区组试验设计,设置了B0(0 kg/株,对照组)、B1(10 kg/株)、B2(20 kg/株)、B3(30 kg/株)、B4(40 kg/株)共5个试验组,就不同沼液用量对油茶生长及果实品质的影响情况进行了试验.结果表明:施用沼液能有效促进油茶的营养生长,对油茶地径增长和冠幅增长的影响均达到了显著水平.B2处理和B3处理的单株产量比对照组分别增长了25.45%和4.1%.5个处理组中,B3处理对油茶果实品质的效果最好,与对照相比,B3处理的单果质量增加了8.83%,其横径增加了10.21%,其纵径提高了9.37%.文中还对油茶产量与其各营养生长指标间的相关性进行了分析,结果表明,树高增长量对油茶产量的相关性最大.综合分析认为,B3(30 kg/株)处理最能有效促进油茶生长,提高油茶产量.