Searching Rudolf Steiner Lectures by GA number (GA0327)
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- Title: Agriculture Course: Lecture 3
- works in the life of Nature, has so to speak four sisters, whose
- so-called household. The four sisters of nitrogen are those that are
- clear to the outer science of to-day. I mean the four sisters,
- shall, however, best approach it by first considering the four other
- Title: Agriculture Course: Lecture 4
- Lecture Four
- to twelve stone) requires about four-and-one-quarter of protein a day
- four-and-one-quarter oz. of albuminous food are not only unnecessary
- thirty-four years, the methods of making and applying the Preparations
- Title: Agriculture Course: Lecture 5
- So we have added four different
- that in the growth of plants, all the four elements of which I have
- Title: Agriculture Course: Lecture 6
- things in Nature being subject to a cycle of four years, after the fourth
- these influences take place in periods of four years. The nematode is
- well investigate the cockchafer-grubs which come in cycles of four years.
- occur with the potatoes every four years. Wherever this is so, we have
- a four years' cycle. Though it does not apply to the nematode
- effective after the fourth year. For by that time the nematode can no
- Title: Agriculture Course (1938): Lecture II
- living through the four seasons,) and that the life of the
- Title: Agriculture Course (1938): Lecture III
- its activities in Nature nitrogen has, one might say, four
- so-called economy of Nature. These four sister-substances are
- the four substances which in albumen (protein), both animal and
- mystery for present-day science. The four sister-substances are
- fundamental nature when we consider the four sister-substances
- Title: Agriculture Course (1938): Lecture V
- have now dealt with four substances to be added to manure. All
- the plant, there are the four elements of which I have spoken.
- Title: Agriculture Course (1938): Lecture VI
- question. After four years of this treatment, the weed will
- of these forces have a four-year rhythm. Now in the case of the
- by the same forces, and these forces recur every four years.
- This four-yearly cycle is what must be taken into account not
- gradually, become “faint.” After the fourth year,
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