甘薯短期高产的生理、生态指标及干物质积累、分配规律的研究

• 作 者: 余增骞
• 机 构: 湛江农业专科学校,
• 出 处: 广东农业科学
• 发表日期: 1986年05期
• 关键词: 生态指标 高产栽培试验 栽培技术 其他农作物 农业布局 农业生产 净同化率 磷素含量 高产稳产 生育后期

近年来我省积累了不少万斤甘薯的栽培技术经验。但绝大多数是全生育期比较长,一般在200天左右,因此在生产实践中较难推广普及。我们设想,如果能在短期(150天内)使甘薯亩产达万斤以上,那就1年可种3造,能充分利用时间、地力、人力,提高复种指数,开展多种经营,增加粮食和其他农作物的收入,对农业布局的合理化,发展我省的农业生产,提高经济效益,都具有重大的意义。为探索甘薯短期高产的规律和栽培技术,我们于1984年秋开展甘薯短期高产栽培试验,在150

In recent years, our province has accumulated a lot of kilograms of sweet potato cultivation technology experience. However, the vast majority of the whole growth period is relatively long, usually about 200 days, so it is more difficult to promote popularization in production practice. We envisaged that if sweet potato output per mu could reach above 10,000 kg in the short term (within 150 days), it would take 3 years to produce sweet potatoes and make full use of time, land resources and manpower to raise the multiple cropping index and conduct diversified operations and increase grain output. The income of other crops is of great significance to the rationalization of agricultural layout, the development of agricultural production in our province and the enhancement of economic benefits. In order to explore the law of short-term high yield of sweet potato and cultivation techniques, we carried out short-term high-yield sweet potato cultivation test in 1984,