淡灰钙土条件下不同配比施肥对油葵及土壤养分效应研究  

Effect of Different Fertilization Proportions on Oil Helianthus and Soil Nutrients under Light Sierozem

作　　者：王长军[1] 王世荣[1] 王肇陟 

机构地区：[1]宁夏农林科学院农业资源与环境研究所,宁夏银川750002 [2]宁夏彭阳一中,宁夏彭阳756500

出　　处：《中国农学通报》2015年第36期125-130,共6页Chinese Agricultural Science Bulletin

基　　金：宁夏农林科学院科技先导资金基础研究项目"宁夏主要类型区土壤肥力定位监测"(NKYJ-15-04)

摘　　要：为了探明淡灰钙土条件下不同配比施肥对油葵及土壤养分效应,以NX440为供试材料,采用随机区组设计布设田间试验,试验共设CK及NPKM处理等8个处理。结果表明:不施无机氮肥的处理株高相对偏低,且相对CK处理经济产量增产不显著;NPKM处理在收获期比CK处理株高提高了41.6 cm,盘粒数提高了272粒/盘,提高了27.7%,千粒重提高了12.2 g,提高了23.4%;经济产量和生物产量均显著提高,分别提高了55.6%和43.1%,籽粒和茎秆氮含量分别是CK处理1.6倍和2.0倍;土壤有机质含量较CK处理提高了1.5 g/kg。因此,综合考虑,在当地淡灰钙土条件下,不施无机氮肥是不可行的,油葵参照NPKM处理施肥较为适宜。In order to ascertain the effect of different fertilization proportions on oil helianthus and soilnutrients in light sierozem, randomized block design was used in a field experiment including eight treatmentssuch as CK and NPKM with NX440 as the material. The results showed that plant height of inorganic nitrogenomission treatment was inferior to that of other treatments, and the economic yield increase of inorganicnitrogen omission treatment was not significant in comparing with that of CK. Plant height of NPKM treatmentincreased 41.6 cm compared that of with CK in harvest time, plate grain number increased by 272 grains perplate, 27.7% more than that of CK, thousand kernel weight increased 12.2 g, 23.4% higher than that of CK.Economic yield and biological yield increased significantly by 55.6% and 43.1% compared with that of CK.The nitrogen content of grain and stem of NPKM treatment was 1.6 times and 2.0 times as much as that of CK,respectively. Organic matter content of soil of NPKM treatment increased 1.5 g/kg compared with that of CK.Consequently, in the local condition of light sierozem, no application of inorganic nitrogen was unfeasible, andit was reasonable to refer to NPKM treatment for oil helianthus fertilization.

关 键 词：淡灰钙土 不同配比施肥 油葵 土壤养分 

分 类 号：S143[农业科学—肥料学]