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1983年早造对我院育成的水稻新品种“激青”进行了系统的栽培试验,进一步掌握在南宁的气候条件下,各项主要栽培因素对“激青”的生长发育和产量的影响。不同施氮水平的试验表明,每亩施15～25斤纯氮,“激青”的形态、生理和产量随施氮水平的提高而表现较理想,其分蘖消长、叶面积系数、干物质累积等皆具有合理的变化曲线;根、茎、叶等营养器官协调生长,穗、粒数增大,产量增高。但是,亩施35斤纯氮,各项指标均不理想,单位面积产量下降,说明“激青”品种适合低、中产地区种植。密植试验各处理间经济产量差异不显著,表明“激青”品种适应性较广,群体的自动调节能力强,在密植规格范围内都可以获取较高产量。不同播期和秧龄试验表明,适期早播(3月8日)和采用短秧龄(30天),能使该品种的优良经济性状得到较好的发挥,达到穗大粒多、粒饱、高产的目的。
As early as 1983, a systematic experiment was carried out on the “Qingqing”, a new rice variety bred in our college to further understand the influence of the main cultivation factors on the growth and yield of “Qingqing” under the climate conditions in Nanning. The experiment of different nitrogen level showed that the morphology, physiology and yield of “Qingqing” performed better with the increase of nitrogen application rate. The tiller growth and decline, leaf area coefficient, dry matter accumulation All have a reasonable curve; root, stem, leaf and other vegetative organs coordinated growth, spike, grain number increased, the yield increased. However, Mushi 35 pounds of pure nitrogen, the indicators are not ideal, the yield per unit area decreased, indicating that “agile” varieties suitable for low, middle-growing areas. The results showed that there was no significant difference in the economic yield between the treatments in the close planting experiment, indicating that the varieties of “Qingqing” were more adaptable, the ability of the population to adjust automatically was stronger, and the higher yield could be obtained in the dense planting range. Different sowing date and seedling age test showed that early sowing date (March 8) and short seedling age (30 days) could make the good economic traits of the breed get better play, and reached the peak grain size, grain full, high yield the goal of.