玉米“四两”高产栽培技术研究Ⅰ 春玉米在三熟制中的增产作用  

Study of "Four twos" High yield Corn Cultivation Technology (Ⅰ) Spring Corn

作　　者：宋少援[1] 朱应远 邱长吉 董友文 曹林 张满昌 朱文亮 

机构地区：[1]湖北农学院农学系 [2]湖北省丹江口市浪河镇农技站 [3]湖北省丹江口市习家店镇农技站

出　　处：《湖北农学院学报》1996年第4期263-267,共5页Journal of Hubei Agricultural College

基　　金：湖北省教委资助

摘　　要：玉米“四两”高产栽培技术，旨在鄂西北亚热带与暖温带气候过渡带进行熟制改革，改旱地两熟制为三熟制。春玉米选用掖单１３号高产早熟品种，营养钵育苗，薄膜覆盖，合理密植，定产定肥，在大旱之年，春玉米首熟高产达到１１０８５ｋｇ·ｈｍ－２，平均７７３３ｋｇ·ｈｍ－２，比常规两熟制春玉米单产３７５０ｋｇ·ｈｍ－２增产１．１倍，净增利润１．２倍。The four twos high yield corn cultivation technology is intended to reform the ripe cycle in the north western part of Hubei province, which is a transitional area between the north subtropical zone and the warm zone. More specifically, the technology is intended to change the two ripe cycle into a three ripe cycle in dry land. It adopts high yield and high quality seeds of yedan 13 and employs agricultural technologies such as early growing seedlings in culture pans under plastic film and early transplanting seedlings, rational close planting, determining the amount of fertilizers according to the yield and strengthening the cultivating administration to obtain a high yield of spring corn. The results show that season spring corn obtains a maximum yield of 11 085 kg·hm -1 or an average of 7 733 kg·hm -1 in a dry year. Compared with an averaege of 3 750 kg·hm -1 and a profit of 1 813 yuan·hm -1 of season spring corn in the two ripe cycle, the yield increases by 110%, the profit increases by 120%.

关 键 词：三熟制 掖单13号 栽培 玉米 

分 类 号：S513[农业科学—作物学]