摘要
在测土施肥中,取土样是个重要环节,本文对取样的点数、样品的代表面积、取样的时间、方法和取样的频率进行了研究与讨论,结果表明:耕地应取混合样,合理的取样点数应不少于15个;取样时间从10月1日至封冻之前;目前每一个地块取一个土样; 3～5年取样分析一次;耕地取样深度15～20cm;本文还了介绍取样的具体方法。
The soil sampling is important in soil testing and fertilizer recommendation. This paper discusses and researches the number of samples site, the date, the method and the frequency of soil sampling. The results showed:The mixed sample should be taken; The proper number of sample sites are more than 15.The date is from the first October to before freezing; One sample is taken on a piece of field at present. The interval between twice sampling and analyzing is 3～5 years. The sampling depth is 15-20cm on cultivated land. The paper still introduces the method of sampling.
出处
《黑龙江八一农垦大学学报》
2002年第3期12-15,共4页
journal of heilongjiang bayi agricultural university
关键词
土壤取样
土壤化验
测土施肥
soil sampling
soil test
fertilizer recommendation
