摘要
2001～2004年，运用作物有效营养面积理论，对北方垄作区大豆垄幅的合理性问题进行了试验研究。研究表明大豆主产区黑龙江省中部、南部地区大豆有效营养面积为2210～4500cm^2，有效株行距为47．0～67．1cm。其中中部地区的有效营养面积在2210～4025cm^2，即有效株行距为47．0～63．Ocm，南部地区的有效营养面积在3838～4500cm^2，即有效株行距为61．9～67．1cm。南部地区品种有效营养面积较大，中部地区品种有效营养面积较小。据此阐明目前生产上广泛采用67～70cm的垄作，已超过了大豆的有效株行距，造成了土壤资源等的浪费。中、北部垄作区采用55cm左右的垄距种植大豆，将会更有利于大豆群体产量的提高。该理论为目前黑龙江省北部地区栽培面积逐渐增大的大豆窄行垄栽培提供了有力的理论根据。
Based on the theory of crop＇s effective nutrient area, an experiment was conducted from 2001 to 2004 to identify whether the ridge width was suitable for soybean production. The results showed that the effective nutrient area of soybean was 2 210～4 500cm^2, i.e. the effective ridge width was 47.0～67. 1cm in the Central and South of Heilongjiang province. Moreover, in the central region of this province, the effective nutrient area was 2 210～4 025cm^2 ,i. e. the effective ridge width was 47.0～63.0cm; and in the south region, the effective nutrient area was 3 838～4 500cm^2 ,i. e. the effective ridge width was 61.9～67. 1cm. These results indicated that the effective nutrient area of soybean in the south region was greater than that in the central region. Therefore, the 67～70cm of ridge width in the present farming system has exceeded the effective ridge width, which may have wasted soil resources. It is suggested that 55cm of the row width of soybean should be beneficial in increasing population yield, especially in the Central and South of Heilongjiang province. This theory provided a scientific support for the increasing area of narrow ridge farming system in the North of Heilongjiang province.
出处
《中国油料作物学报》
CAS
CSCD
北大核心
2008年第2期201-205,共5页
Chinese Journal of Oil Crop Sciences
基金
黑龙江省重点科技攻关课题(GA06B101-3)
国家自然科学基金(40671099)
关键词
有效营养面积
最佳营养面积
大豆
品种
单株产量
Effective nutrient soil area
Optimal nutrient soil area
Soybean
Cultivar
Individual yield
