| 不同施肥量对稻田一年生黑麦草产量及氮磷钾吸收的影响 |
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| 引用本文： | 杨曾平,聂 军,廖育林,周 兴,谢 坚,鲁艳红,纪雄辉,吴家梅,谢运河.不同施肥量对稻田一年生黑麦草产量及氮磷钾吸收的影响[J].中国农学通报,2015,31(30):173-180. |
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| 作者姓名： | 杨曾平 聂 军 廖育林 周 兴 谢 坚 鲁艳红 纪雄辉 吴家梅 谢运河 |
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| 作者单位： | (;1.湖南省土壤肥料研究所,长沙 410125；;2.湖南农业大学资源与环境学院,长沙 410128） |
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| 基金项目： | 国家科技部“十二五”科技支撑计划项目“循环农业科技工程”(2012BAD14B17-04)。 |
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| 摘 要： | 通过大田试验，研究不同施肥量对黑麦草产量及养分吸收的影响，找到南方稻田种植黑麦草的最佳基肥肥料配比。氮、磷、钾肥施用量分别设4个水平，试验设11个处理。测定每次刈割黑麦草的干草产量和氮、磷、钾养分含量，计算氮磷钾的养分吸收量。结果表明：花岗岩发育的水稻土上种植黑麦草，施肥尤其是氮肥能增加黑麦草的株高和产量；基施磷肥和追施氮肥能促进黑麦草的再生。增加氮、磷肥施用量，黑麦草氮、磷含量也增加，钾肥施用达到一定量后，再增加施用量，黑麦草钾含量变化不大。增加氮、磷、钾肥的施用能提高黑麦草氮、磷、钾的吸收量。南方花岗岩发育的水稻土上种植黑麦草的N、P、K肥基肥最佳施用量（折纯）分别为：210.0 kg/hm2 N、108.0 kg/hm2 P2O5、117.5 kg/hm2 K2O。
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| 关 键 词： | 玛咖含片 玛咖含片 红景天 正交试验设计 感官评价 |
| 收稿时间： | 2015/3/18 0:00:00 |
| 修稿时间： | 2015/9/28 0:00:00 |
Effect of Different Fertilizations on Biomass Yield and N, P, K Absorption of Annual Ryegrass in Rice Field |
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| Yang Zengping,Nie Jun,Liao Yulin,Zhou Xing,Xie Jian,Lu Yanhong,Ji Xionghui,Wu Jiamei and Xie Yunhe.Effect of Different Fertilizations on Biomass Yield and N, P, K Absorption of Annual Ryegrass in Rice Field[J].Chinese Agricultural Science Bulletin,2015,31(30):173-180. |
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| Authors: | Yang Zengping Nie Jun Liao Yulin Zhou Xing Xie Jian Lu Yanhong Ji Xionghui Wu Jiamei and Xie Yunhe |
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| Institution: | (;1.Soil and Fertilizer Institute of Hunan Province, Changsha 410125;2.College of Resources and Environment, Hunan Agricultural University, Changsha 410128) |
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| Abstract: | In order to find the best basal fertilizer ratio in planting ryegrass in paddy soil in southern China, a field experiment was conducted to study the effect of different fertilizer rates on the biomass yield and the N, P, K absorption of annual ryegrass. Four levels and 11 treatments were set for the fertilization of nitrogen, phosphorus and potassium fertilizer. The biomass yield of ryegrass was estimated. The nitrogen, phosphorus and potassium content of ryegrass were tested and analyzed, and the N, P and K absorption of ryegrass were calculated. It showed that when planting ryegrass in paddy soils derived from granite, fertilization, especially nitrogen fertilizer, increased the height and biomass yield of ryegrass. Application of phosphate fertilizer as basal fertilizer and nitrogen fertilizer as top dressing fertilizer improved the regeneration of ryegrass. With the increase of nitrogen and phosphate fertilizer rates, the nitrogen and phosphorus content of ryegrass were also on the rise. After a certain amount of potash application, the potassium content of ryegrass did not change much with further potash application. Nitrogen, phosphorus and potassium fertilizer could all increase the N, P and K absorption of ryegrass. As for the basal fertilizer, the recommendation fertilization rates on ryegrass were given as N 210.0 kg/hm2, P2O5 108.0 kg/hm2, K2O 117.5 kg/hm2, respectively, when planting ryegrass in paddy soils derived from granite in southern China. |
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| Keywords: | fertilization rice field ryegrass yield NPK absorption |
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