Anti Cancer, which can be used in drugs for treating cancer, raw material. 7-Ethylcamptothecin, 10-hydroxycamptothecin.
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10-hydroxycamptothecin
7-Ethylcamptothecin
7-Ethyl-10-hydroxycamptothecin(SN-38)
Camptothecin
Reasonable use of vegetable leaf fertilizer
The scientific and reasonable use of foliar fertilizer is very important for the growth of vegetables. According to different types of vegetables, the selection and application of foliar fertilizers are used below. Leaf vegetables. Such as cabbage, spinach and so on. This type of vegetable needs more water and fertilizers during the whole growth period, especially for immediate nitrogen fertilizer. If nitrogen is insufficient, the leaves are yellow-green, growth is slow, and the yield is greatly reduced. Therefore, in addition to the application of base fertilizer, 1-2% urea solution should be sprayed at the seedling stage, middle and late stage, 7-10 days, and sprayed 2-4 times continuously, which can accelerate the growth of the leaves, and can save the cost and increase the use of nitrogen fertilizer. Rate (20-30% higher than soil application). Such as the addition of Green Fenway II in the urea water (1000-1500 times), Hui Man Fung (500-1000 times) and other foliar fertilizer, the effect of increasing production is more significant. Fruits and vegetables. Such as eggplant, tomato, all kinds of melons and so on. This type of vegetable has relatively balanced requirements for nitrogen, phosphorus, potassium, and trace elements (mainly boron, zinc, molybdenum). That is to say, nitrogen needs to be heavier than phosphorus and potassium at the seedling stage, and more than three elements are needed during the flowering period. Potassium and heavier than nitrogen are required during the fruiting period. Such as seedlings, flowering nitrogen deficiency, it is easy to premature aging and fruit damage, so that 啵 啵 蛞淄饯 è„±è½ è„±è½ è„±è½ è„±è½ è„±è½ è„±è½ è„±è½ è„±è½ è„±è½ è„±è½ è„±è½ è„±è½ è„±è½ è„±è½ ã€‚ 。 。 。 。 。 。 。 。 。 。 。. That is, seedling stage uses 1-2% urea and 3000 times 802 solution to spray, in order to maintain strong roots and long leaves; flowering stage uses 1-2% urea water mixture, 0.1-0.3% boric acid and 1000 times plant power 2003 solution spraying 2- 3 times (each interval is about 7 days) to increase the fruit setting rate and prevent "flowers from being unrealistic"; the result is a mixture of 1-2% urea water, or 0.2-0.3% potassium dihydrogen phosphate, etc. "Spray" solution spraying, once every 7-10 days, a total of 2-3 sprays, will be able to fully supply the fertilizer needed for vegetable plants, the effect of falling flowers significantly.