玉米秸有机栽培基质矿质营养及理化性质分析  

Analysis of mineral element contents and physical and chemical properties of corn stalk substrate

作　　者：孙守如[1] 杨秋生[1] 董晓宇[1] 王吉庆[1] 

机构地区：[1]河南农业大学林学园艺学院,郑州450002

出　　处：《农业工程学报》2008年第6期41-44,共4页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家林业局"948"项目(2006-4-53)

摘　　要：为了探索玉米秸秆作为有机栽培基质的可行性,采用塔式发酵设备,以玉米秸粉为发酵主料,以烘干鸡粪和尿素为添加氮源,控制发酵物料C/N为60,初始含水率为66%,经添加发酵菌、分段发酵、堆积后熟等过程制成玉米秸基质。试验测定了玉米秸基质和草炭的矿质营养含量及主要理化性质,分析比较了玉米秸有机栽培基质与草炭基质的差异,结果表明:除铁、锰元素含量略低于草炭外,玉米秸基质中其他主要矿质营养含量普遍高于草炭基质,腐殖酸含量较草炭低58.9%,持水空隙较草炭小24.1%,pH值呈偏碱性,电导率较草炭高2.7倍。在进行园艺植物育苗和栽培时,应对玉米秸基质含盐量高、偏碱性的特点加以调整。In order to explore the feasibility of com stalk produced with corn stalk by fermentation inside cylinder substrate for culture media, the com stalk substrate was tower. The fermentation conditions were as follows： the nitrogen resources were dry chicken manure and urea, the C/N ratio was 60 ： 1, the water content of the fermented material was 66% at the beginning fermentation. The corn stalk substrate was made through the process, adding the fermentation micro-organism, the high temperature fermentation period, the mid-temperature fermentation period and post-fermentation period. The contents of mineral nutrient elements and the physical and chemical properties of the corn stalk substrate and peat moss were determined respectively. The difference between the corn stalk substrate and peat moss were analyzed. Results show that the contents of mineral nutrient elements in corn stalk substrate are generally higher than that in peat moss except the contents of iron and manganese. The content of humic acid was 58.9% lower and the water-holding porosity was 24.1% smaller compared with peat moss. The pH value of corn stalk substrate was higher and the EC was 2.7 times higher than that in the peat moss. The contents of salt and alkalinity of the corn stalk substrate should be adjusted when using it to alternate the peat moss for nursing and growing in horticulture.

关 键 词：玉米秸粉 发酵 栽培基质 矿质营养 理化性质 

分 类 号：S359.9[农业科学—作物栽培与耕作技术] X712[农业科学—农艺学]