V. P. Kochetkov

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The medicinal crops named in the title belong to the low tonnage group, the volume of their production is from ten to several hundred tons each. However the total harvest of the crops available at the present time far from satisfies the needs of public health. In connection with this a significant increase in their production is planned up to 1980. In(More)
Herbicides manufactured at the present time as a rule have a fairly high degree of selectivity in relation to one crop or another, high herbicidic activity, and a wide range of action in relation to weeds, in addition to being harmless for subsequent crops in crop rotation. Nevertheless, in practical application of herbicides, it is necessary to observe(More)
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