摘要
1984年,根据杂交中稻的生理特性及四川盆地低光值、小温差、高湿度等生态特点,提出了“稳定穗数,主攻穗重”的设想,并试验形成了“稳促攻”超高产栽培新模式,包括地膜中苗,宽行双株,W调氮法,停滞期施氮等组装配套技术.运用这套技术,在荣县10万余亩稻田上连续6年亩产650公斤.1989年在32.67万亩推广部分技术,平均亩产增加50公斤.新模式还有利于再生稻的高产栽培.
In 1984, based on the biological feature of middle season hybrid rice and the ecological feature of the lower numerical value of sunshine hours, the unconsiderable difference of temperature between day and night, and the higher relative humidity, a tentative idea maintaining the number of panicles per unit area and mainly increasing the weight per panicle was proposed. A new cultivation model for higher yielding and a set of cultivation techniques were foimed, including raising the middle seedlings with 4-4.5 leaves by thinner plastic film covering, widening the spacing of rows but planting two seedlings per hill, applying nitrogen fertilizer as W and applying nitrogen fertilizer at the standstill of vegetative growth. Applying the set of techniques the yield of rice on the same fields about 8 000 ha overfulfilled 9 750 kg/ha for 6 years in Rongxian county. In 1989, this set of techniques was partialy applied on 21 780 hectares and the average yield was increased by 750 kg/ha. The new model was advantageous to the cultivation of ratooning rice for higher yield.
出处
《西南农业学报》
CSCD
1991年第2期1-9,共9页
Southwest China Journal of Agricultural Sciences
关键词
中稻
杂交稻
高产
栽培
水稻
Hybrid rice
Ratooning rice
High yield
Cultivation
Nitrogen fertilizer
Developmental stage
Sichuan Basin.
