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Mulberry nutrient management for silk production in Hubei Province of China

文献类型： 外文期刊

作者： Chen, Fang 1 ; Lu, Jianwei 2 ; Zhang, Mingchu 3 ; Wan, Kaiyuan 1 ; Liu, Dongbi 4 ;

作者机构： 1.Chinese Acad Sci, Wuhan Bot Garden, Wuhan 430074, Peoples R China

2.Huazhong Agr Univ, Environm & Resources Coll, Wuhan 430070, Peoples R China

3.Univ Alaska Fairbanks, Sch Nat Resources & Agr Sci, Fairbanks, AK 99775 USA

4.Hubei Acad Agr Sci, Plant Protect & Soil & Fertilizer Inst, Wuhan 430064, Peoples R China

关键词： Morus spp.;fertilizer;leaf quality;silkworm;cocoon

期刊名称：JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE-ZEITSCHRIFT FUR PFLANZENERNAHRUNG UND BODENKUNDE （ 影响因子：2.426； 五年影响因子：3.029 ）

ISSN： 1436-8730

年卷期： 2009 年 172 卷 2 期

页码：

收录情况： SCI

摘要： The silk industry is important for south China's rural economy. Leaves of mulberry (Morus spp.) are used for silkworm production. Hubei province is one of the main silk-producing provinces in China. The objectives of this research were to survey the fertilization practices in the mulberry-producing regions in the province and to determine the best nutrition-management practice for mulberry plantations. A survey and a series of field experiments with N, P, K, and micronutrients were conducted from 2001 to 2002. In addition, a silkworm-growth experiment was also conducted by feeding leaves harvested from various fertilization treatments. The results indicate that poor soil fertility and unbalanced fertilization were the main factors limiting mulberry-leaf yield and quality in Hubei province. Nitrogen fertilization of mulberry has reached a high level (454 kg ha(-1) y(-1)) in Hubei province, but P- and K-fertilization rates have not been matched with N-fertilization rates as farmers are not aware of the significance of P and K. Balanced fertilization showed positive nutrient interactions with respect to mulberry yield and quality. Potassium application increased yield and quality (protein and sugar concentration) of mulberry leaves. Silkworm growth and cocoon quality were improved when silkworms were fed with the leaves derived from K-fertilized plants in comparison with those taken from control plots. Application of Mg, S, and B also significantly improved leaf sugar, essential and total amino acid concentrations, but did not increase leaf yield significantly. It is concluded that a fertilizer dose of 375 kg N ha(-1), 66 kg P ha(-1), and 125 kg K ha(-1) is suitable for the cultivation of mulberry in the Hubei province along with Mg, S, and B, wherever necessary, for the improvement of yield and quality of mulberry leaves.

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[1]Effects of N management on growth, N-2 fixation and yield of soybean. Gan, YB,Stulen, I,Posthumus, F,van Keulen, H,Kuiper, P. 2002

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