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以寒地超级稻龙稻5号为供试品种,在寒地早春大棚旱育秧条件下,研究了不同壮秧剂及用量对水稻秧苗素质及本田产量构成的影响,旨在探讨适龄、健壮、适合机插秧苗群体在苗期的调控措施,为黑龙江地区培育高质量的秧苗提供理论依据和技术指导。结果表明:施用壮秧剂处理秧苗地上部鲜、干重,株高,叶片最大长度、宽度及面积,叶挺长、叶龄,苗基宽,本田最终分蘖和穗结实率均显著大于对照处理(不使用壮秧剂)。研究结果还表明,壮秧剂施入后增产的主要原因是显著提高了穗数和二次枝梗结实率。此外,处理3(育苗伴侣每育秧钵盘使用12g,用机插秧专用拌种剂旱育保姆包衣水稻种子后,直接播种)、处理4(育苗伴侣每育秧钵盘使用12g,用机插秧专用拌种剂旱育保姆包衣水稻种子后,浸种催芽播种)秧苗根干重、根冠比均显著大于其他处理(根冠比CK除外);处理5(三金壮秧剂当地用量,每育秧钵盘使用41.6g,水稻种子浸种催芽播种)叶长和株高显著大于其他处理,但其充实度小于处理1(育苗伴侣每盘使用15g,水稻种子浸种催芽播种)、处理2(育苗伴侣每盘使用12g,水稻种子浸种催芽播种)、处理3、处理4,且与处理3、处理4差异显著。
Taking cold paddy rice Longdao No.5 as test variety, under the conditions of dry nursery seedling raising in cold spring in early spring, the effects of different seedling enhancers and dosage on the quality of rice seedling and the composition of Honda yield were studied, Suitable for the machine inserted seedling population control measures in seedling stage, provide a theoretical basis and technical guidance for the cultivation of high-quality seedlings in Heilongjiang. The results showed that fresh shoots, dry weight, plant height, maximum length, width and area, leaf length, leaf age, seedling width, final tillering and ear setting rate of seedling were all significantly higher than those of control Not use strong seedling agent). The results also show that the main reason for increasing seedling production is that the number of spikelets and the rate of secondary branching are significantly increased. In addition, the treatment 3 (nursery mate each seedling bowl dish use 12g, seedlings with machine-specific seedlings dry nurse nanotechnology coated rice seeds, direct sowing), treatment 4 (nursery mate bowl each potting seedlings use 12g, Seed dressing seedlings dry nurse coated rice seeds, seed soaking germination sowing) seedling root dry weight, root-crown ratio were significantly greater than the other treatments (root canopy than CK except); treatment 5 The pot length and plant height were significantly larger than those of other treatments, but the degree of enrichment was less than that of treatment 1 (seedling companion use 15g per dish, rice seed soaking and germination sowing), treatment 2 (seedling companion per Dish using 12g, seed soaking rice germination sowing), treatment 3, treatment 4, and with treatment 3, treatment 4 significant difference.