文献类型：期刊文献

中文题名：陇中干旱半干旱地区马铃薯养分资源投入的调查与分析

英文题名：Investigation and Analysis of Potato Nutrient Resource Inputting in Longzhong Arid and Semiarid Area

作者：陈亚兰[1];张健[2];韩儆仁[2];王会蓉[2]

第一作者：陈亚兰

机构：[1]甘肃省定西师范高等专科学校,甘肃定西743000;[2]甘肃省定西市农业科学研究院,甘肃定西743000

第一机构：甘肃中医药大学定西校区

年份：2013

卷号：27

期号：4

起止页码：208

中文期刊名：中国马铃薯

外文期刊名：Chinese Potato Journal

基金：甘肃省教育厅项目"马铃薯脱毒苗高效生产技术的探讨"(1127B-02)

语种：中文

中文关键词：马铃薯;陇中干旱半干旱地区;养分资源投入

外文关键词：potato; Longzhong arid and semiarid area; nutrient resource inputting

摘要：为了给陇中干旱半干旱地区马铃薯合理施肥提供依据,2012年在定西市安定区、通渭县、陇西县3个区/县进行了马铃薯养分资源投入的调查。数据表明:马铃薯产量适中的农户占18.9%、偏低的农户占26.4%、很低的农户53.8%、偏高的农户无、很高的农户占0.9%。纯N投入量适中的农户仅占调查户总数的32.1%,15.1%马铃薯种植户氮肥用量过大,52.8%的马铃薯种植户氮肥用量低于适中水平。马铃薯氮肥以基施为主,磷、钾肥全部以基肥形式投入,马铃薯基肥的施肥面积比最大的是尿素。建议甘肃省陇中干旱半干旱地区马铃薯的纯N适宜用量为130～160 kg/hm2,磷适宜用量75～100 kg/hm2,钾适宜用量为100～130 kg/hm2。
In order to provide basis for chemical fertilizer application in Longzhong arid and semiarid area, potato nutrient resource inputting investigation and analysis were carried out in the three counties of Anding, Tongwei, and Longxi in 2012. The survey results showed that 18.9 percent of farmers got the average tuber yield, 26.4 percent got lower tuber yield, 53.8 percent got the lowest yield and 0.9 percent got the higher yield; and 32.1% farmers applied reasonable pure nitrogen, 15.1% farmers applied too much, and 52.8% farmers applied too less. Most nitrogen and all phosphorus and potassium were used as base fertilizer. The most widely used basal nitrogen fertilization was urea. It is suggested that reasonable application of pure nitrogen be from 130 to 160 kg/ha, reasonable application of phosphorus be from 75 to 100 kg/ha, and reasonable application of potassium be from 100 to 130 kg/ha.