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遂宁市唐家乡林业员杨绪祥在《怎样养兔》的小册子中看到喷施兔粪液可使稻谷穗大粒重提早成熟后,从中受到启发。心想:兔粪中的氮磷钾是各类植物必需的当家肥料,何不可做幼树的催长剂呢?他按方制液后,首先在自己承包的六分香椿苗
Suining City Tangjiaxue forestry workers Yang Xu-xiang in the “How to raise rabbits” brochure to see the application of rabbit manure liquid rice grain size can be premature mature, inspired. I thought: rabbit manure in the NPK is all kinds of plants necessary fertilizer, why not young seedling excipients? He press the system after the liquid, first in their own contracting six toothorn seedlings