无产阶级文化大革命以来,贫下中农广泛地将腐植酸胺应用于农作物的施肥、浸种和叶面喷洒,收到了显著的增产效果。为了了解腐植酸胺对落叶松幼苗生长的影响,我们于1975年进行了试验。试验共9个苗床,分成3组(每组3床),其中一组施腐植酸胺402斤,一组施266斤,一组未施以作对照。在采用相同技术措施条件下,试验结果见表1、2。 Since the Great Proletarian Cultural Revolution, humic acid amines have been extensively applied to the fertilization, soaking and foliar spraying of crops by poor and under-aged middle peasants, and have achieved remarkable yield increase. To understand the effect of humic acid amines on the growth of larch seedlings, we conducted a trial in 1975. A total of 9 seedbed beds were divided into 3 groups (3 beds in each group). One group was given 402 kg of humic acid amine, and the other group was given 266 kg. One group was not used as a control. The same technical measures in the conditions, the test results in Table 1,2.