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Tomato , sweet potato dedicated organic - inorganic slow release fertilizer developed its biological effects

Author: ShiChunYu
Tutor: ZhangFuDao
School: Chinese Academy of Agricultural Sciences
Course: Plant Nutrition
Keywords: Cementing agent Organic - inorganic fertilizer Wheat Release properties
CLC: TQ449
Type: PhD thesis
Year: 2003
Downloads: 433
Quote: 1
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Abstract


CF2 cement , plastic - starch cement and clay - polyester binder dubbed different concentration of the aqueous solution , and the impact of research on wheat seed germination . The results showed that the wheat seed germination rate of 99 % , similar to the water control . To study the impact of growth on wheat emergence , and seedling stage the above granulation cementing agent developed organic - inorganic slow release fertilizer in the pot under the conditions , results showed that the the wheat germination rate in more than 96% , with no fertilizer control ; emergence 40 days after wheat shoot dry weight , root dry weight and leaf area were no significant differences between treatments . The new organic - inorganic slow release fertilizer nitrogen rates lower than the differential solubility in water and other nutrients not granulation of compound fertilizer control the fertilizer nitrogen dissolution time in the water longer . The new organic - were lower than the release rate of inorganic nitrogen slow-release fertilizer in the soil column nutrients granulation of compound fertilizer control , lower cumulative release rate for a certain period of time . Comparison between three new organic - inorganic slow release fertilizer , plastic of - starch cemented fertilizer release period is longer , shorter the clay - polyester cemented fertilizer release period .

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