| 陡坡地灌桑垄槽栽培研究 |
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| 引用本文： | 李自莲,吴远举.陡坡地灌桑垄槽栽培研究[J].自然资源学报,1997,12(1):42-46. |
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| 作者姓名： | 李自莲 吴远举 |
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| 作者单位： | 陕西省黄土高原治理研究所, 杨陵 712100 |
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| 摘 要： | 陡坡地灌桑垄槽栽培研究结果,免除土壤侵蚀的危害,其５０ｃｍ、１００ｃｍ土壤中,比对照区持水量高１０.２０％～３３.６７％、８.２７％～６５.３７％,含全氮率为对照的９０％,含全磷率高２.９％、２６.２％,含全钾率高３.１８％、８.０１％,而水解氮均为对照的６１.５％,速效磷高较对照３９.０２％、９７.７２％,速效钾为对照的９１.４８％、９２.５４％。公顷产桑叶量和蚕茧量均较对照高５～１０倍,经济效益较对照高１１.８８倍。
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| 关 键 词： | 自然资源 合理利用 灌桑垄槽 桑树栽培 |
| 收稿时间： | 1995-10-19 |
A STUDY ON THE RIDGE TROUGH CULTURE OF BUSH MULBERRY ON STEEP SLOPING LAND |
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| Li Zilian,Wu Yuanju.A STUDY ON THE RIDGE TROUGH CULTURE OF BUSH MULBERRY ON STEEP SLOPING LAND[J].Journal of Natural Resources,1997,12(1):42-46. |
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| Authors: | Li Zilian Wu Yuanju |
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| Institution: | Institute of Loess Plateau Management, Yangling Shanxi Province 712100 |
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| Abstract: | The study results of the ridge trough culture of bush mulberry on steep sloping land show that the calamities of soil erosion are prevented. In comparison with the contrast area, at the depths of 50cm and 100cm, the soil water content of the managed land is 10. 20%～33. 67% and 8. 27%～65. 37% higher respectively, the total N is 90% of the contrast area, the total P is 2. 9% and 26. 2% higher respectively, the total K is 3. 18% and 8. 01% higher respectively, the hydrolysed N is 61. 5% of the contrast area, the available P is 39. 02% and 97. 72% higher respectivley and the available K is 91. 48% and 92. 54% of the contrast area respectively. The per heatare leaf and cocoon production is 5～10 times higher than that of the contrast area. The economic benefit is 11. 88 times higher than that of the contrast area. |
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| Keywords: | natural resources rational use the ridge and trough for planting the bush mulberry moriculture |
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