科学实验讲座 第二讲 田间试验测定方法与结果整理分析

• 出 处: 河南农林科技
• 发表日期: 1976年04期
• 关键词: 田间试验 亩穗数 大区试验 取样技术 取样方法 平方米 增产技术 测产结果 缺苗断垄 生育性状

(一)田间试验取样技术调查记载一般是通过取样的方式进行的,例如,调查每亩穗数,不可能把一亩地内的穗子全部数完,只有抽取若干平方米来调查其穗数然后折算成每亩穗数。用小面积取样来判断全田情况时,必须重视取样方法。如果取样不当,常会引起较大的误差。因此,取样要力求做到合理和具有足够的代表性。一般大区试验可以在每

(A) Field Test Sampling Survey records are generally carried out by way of sampling, for example, the investigation of the number of spikes per acre, it is impossible to all the ears of an acre of land within a few, only a few square meters to investigate the number of spikes and then converted Into the number of ears per acre. Sampling with a small area to determine the whole field conditions, we must attach importance to sampling methods. If improper sampling, often cause greater error. Therefore, the sampling should be made to be reasonable and adequately representative. General area test can be at each