长效复混肥的农田效应  

Effect of slow-release compound fertilizer on field

作　　者：李忠[1] 石元亮[1] 张德生[1] 马兵[2] 马晓薇 

机构地区：[1]中科院沈阳应用生态研究所,辽宁沈阳110016 [2]吉林省土肥站,吉林长春130000 [3]长春市农业生产资料公司邦农商社,吉林长春130000

出　　处：《磷肥与复肥》2003年第1期71-72,共2页Phosphate & Compound Fertilizer

摘　　要：长效玉米专用肥 (免追旺 )在吉林省 7个县 (市 )进行田间试验。结果表明 ,其 1kg养分增收玉米 4 1kg,养分回报率比常规一次性施肥提高 19.8% ,比多施 2 0 %的 15 15 15复混肥提高 2 3.1% ;分别增收 4 85元 / hm2和 2 6 8元 / hm2 。A test on maize using slowrelease compound fertilizer (without top dressing) in cropland of 7 counties of Jilin province was done. The result indicates that yield of maize is increased by 41 kg with 1 kg nutrient elements. Compared with the conventional application of common fertilizer and the compound fertilizer (151515) applied more than 20% weight of slow release fertilizer with top dressing, the yields are respectively raised by 19.8% and 23.1%, the benefit by 485 RMB Yuan and by 268 RMB Yuan per hm\+2.

关 键 词：长效复混肥 农田效应 玉米 田间试验 

分 类 号：S147.2[农业科学—肥料学] S143.5[农业科学—农业基础科学]