摘要
通过玉米推荐施肥量的研究，旨在提出合理的施肥计划。试验结果表明，不同的目标产量均应有相应的氮、磷、钾化肥施用量。不同肥料的配合及不同施肥方式对玉米产量、化肥利用率和肥效都有直接的影响。产量顺序为ＮＰＫ有机肥＞ＮＰＫ＞ＮＰ＞ＮＫ＞Ｎ＞ＰＫ＞ＣＫ；深施ＮＰＫ有机肥＞深施ＮＰＫ＞常规施ＮＰＫ＞表施ＮＰＫ。玉米４００～５００ｋｇ／６６７ｍ２的施肥量为：纯Ｎ素９．０～１７．２ｋｇ，Ｐ２Ｏ５５．１～９．７ｋｇ，Ｋ２Ｏ６．０～１１．４ｋｇ或有机肥１０００ｋｇ，纯Ｎ素４．７～１３．０ｋｇ，Ｐ２Ｏ５２．７～７．３ｋｇ，Ｋ２Ｏ３．１～８．６ｋｇ。
A rational fertilization plan was provided The results showed that a different target output always mates a corresponding application rates of N, P and K Maize yield, uptake rate and effect of fertilizers weredirectly influencedbyfertilizers formulaandapplication methods And its yield responseranks asNPK+ organic manure >NPK>NP>NK>N>PK>CK, NPK+organic manure deeply dressed>NPK deeply dressed>NPK traditionally applied>NPK upper dressed N of 9 0～17 2 kg, P 2O 5 of 5 1～9 7 kg and K 2O of 6 0～11 4 kg or organic manure of 1000 kg plus N of 4 7～13 0 kg, P 2O 5 of 2 7～7 3 kg and K 2O of 3 1～8 6 kg are recommended to be applied for maize as an output of 400～500 kg per 667 m 2is aimed
出处
《贵州农业科学》
CAS
1997年第5期17-21,共5页
Guizhou Agricultural Sciences
关键词
黄粘泥土
玉米
施肥
施肥量
肥料利用率
Huangzhannitu(clayishyellowearth)
maize
fertilizationtechnique
recommended fertilization rate
uptake rate of fertilizer
