共查询到19条相似文献,搜索用时 265 毫秒
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《农业工程技术:农产品加工》2021,(11)
桃江县是粮食生产大县,稻米品质直接受水稻品种影响。为了提升水稻米质产量,选择优质适应性好的品种进行了种植试验,测试各个品种的区域适应性,为水稻新品种推广提供数据参考。 相似文献
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科技兴农,良种先行。优良品种是农业持续稳定发展的基础。长期以来,水稻新品种的试验示范推广一直是高淳农业部门的重点工作之一,水稻品种在生产上的每一次更新更换,对高淳县水稻产量的提高、米质改善和耕作制度的改变,都产生过十分巨大的作用。对过去水稻品种沿革和良种推广工作进行总结,对今后的种子工作可以起到借鉴作用。 相似文献
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为了筛选出适合在巢湖市推广的水稻优质新品种、进一步推动全市优质水稻的推广步伐、优化水稻生产的布局,特于2021年选择了15个优质水稻新品种在巢湖市中垾镇进行了展示试验。试验通过对各展示品种的农艺性状、经济性状、产量、米质等指标进行比较,结果表明:源两优600、丰两优香一号、N两优1998这3个品种表现优异,其产量均在10000kg/hm2,米质优二、生育期适中(132.1d-135.1d),建议在巢湖地区可作优质稻生产大面积推广种植。另外,又香优龙丝苗、荃香优美占、隆两优899由于米质优一可作小面积优质稻订单生产,其他品种有待继续展示示范。 相似文献
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辽粳系列水稻品种产量性状分析 总被引:1,自引:0,他引:1
辽粳系列品种是指辽宁省稻作研究所选育的系列常规水稻品种。辽粳系列水稻品种具有产量高、稳产性好、米质优良和抗病性强等优点。本文选用已审定并在生产上应用面积较大、有代表性的18个辽粳系列水稻新品种,对其产量性状进行分析。结果表明,在产量构成因素中,每穗成粒数的可塑性最大,千粒重的可塑性最小;偏大穗型品种其穗粒数与产量的相关系数大,密切程度高,高生物产量是获得高产的物质基础;多穗型品种其穗数与产量的密切程度相对更高一些;在产量构成因素中,其他因素通过总粒数对产量发挥的作用最大。 相似文献
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Effect of various combinations of temperature during different phenological periods on indica rice yield and quality in the Yangtze River Basin in China
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TU De-bao JIANG Yang ZHANG Li-juan CAI Ming-li LI Cheng-fang CAO Cou-gui 《农业科学学报》2022,21(10):2900-2909
Rice grain yield and quality declines are due to unsuitable temperatures from wide regions and various sowing dates.This study aimed to evaluate the effects of temperature on rice yield and quality at different phenological periods and obtain suitable temperatures for phenological periods in the Yangtze River Basin,China.This study conducted experiments on different sowing dates under different areas in the Yangtze River Basin to observe and compare the differences in rice growth,yield,and quali... 相似文献
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寒冷地区温度、光照对水稻产量及品质的影响 总被引:5,自引:0,他引:5
通过对3个气候区,6个不同类型的品种,研究了寒冷地区温度、日照对水稻产量和品质的影响。结果表明,温度是影响水稻产量与品质的主要气候因子,水稻出穗期随温度增高而提前,产量与品质随温度增高显著提高。日照对产量影响小于温度,子粒形成阶段日照长,有利于改善稻米品质。灌浆到成熟期(出穗后21~50d)的积温高,可以显著提高产量和产量性状值,出穗后积温与日照(尤其是出穗后21~50d)对产量和品质的影响大于出穗前,高温有利于提高产量与品质,日照量增加可以改善品质。 相似文献
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水分和氮肥管理对灌溉水稻优质高产高效调控机制的研究进展 总被引:14,自引:1,他引:13
随着人们对稻米需求量日益增加,水稻(特别是优质稻米)产出需保持逐年增长趋势,但水资源紧缺及水稻生产中过量氮肥投入致环境承载压力增大等因素均阻碍水稻生产。因此,水稻生产当前面临的矛盾是如何在减少资源(水分和氮素)投入条件下产出更多优质稻米,节水省氮栽培模式下获得高产优质稻米是未来水稻生产走可持续发展道路的重要保障。笔者回顾水分管理制度(节水栽培模式、灌溉模式及土壤含水量)、氮肥管理制度(施氮量和施氮方法)及水氮协同管理对灌区水稻产量、品质和水/氮资源利用效率的调控效应,阐明水氮互作对优质高产高效水稻的生理生态调控机制,提出灌区优质高产高效水稻实现过程中潜在的关注点及相应的研究构想。 相似文献
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Rice ratooning refers to the production of second crop from the stubble after the harvest of main crop.Main and ratoon rice growth and development are affected by different factors.These factors include varieties selection,water management,fertilizer management,stubble height,plant protection practices and external environmental factors such as temperature and light.In this review,we discussed the different factors affecting the yield and yield components of main and ratoon rice.Among these factors the most important and first one is varietal selection.Varieties should be selected according to the requirement of specific area and prefer varieties resistant to insects/pests and diseases.Sufficient amount of water and fertilizer should be supplied.Stubble height of 10-20 cm will resulted in high production of ratoon rice.Too low or too high temperature and light would reduce the grain yield and quality of rice.Optimal temperature is useful for higher yield.It was concluded that by keeping the management practices more efficiently,the yield of main rice as well as ratoon rice could be increased.There is a need of more studies focusing on improvement of the quality of ratoon rice. 相似文献
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双季稻区6种不同稻田土壤类型对晚稻产量及稻米品质的影响 总被引:2,自引:0,他引:2
研究双季稻区6种不同土壤类型对晚稻产量及稻米品质的影响,可为指导不同地域的水稻优质生产提供重要参考。本文以6年定位试验为基础,研究了南方双季稻区6种不同土壤类型晚稻产量及稻米品质的变化。结果表明,在6种不同土壤类型中,各处理优质晚稻的有效穗、每穗总粒数、结实率、千粒重和产量均无明显差异。垩白大小与穗干重之间呈显著的正相关。水稻产量以红黄泥田最高,达7570.46 kg/hm2,大小顺序为红黄泥田>河沙泥>灰泥田>麻沙泥>紫泥田>黄泥田。红黄泥田和紫泥田有利于提高优质晚稻的出糙率、精米率;灰泥田和河沙泥田有利于提高稻米的整精米率;黄泥田有利于提高稻米的胶稠度、蛋白质,降低垩白米率、垩白大小和直链淀粉含量。上述结果说明,黄泥田种植水稻有利于改善稻米品质。 相似文献
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《(《农业科学与技术》)编辑部》2017,(7)
Rice ratooning refers to the production of second crop from the stubble after the harvest of main crop. Main and ratoon rice growth and development are affected by different factors. These factors include varieties selection, water management,fertilizer management, stubble height, plant protection practices and external environmental factors such as temperature and light.In this review, we discussed the different factors affecting the yield and yield components of main and ratoon rice. Among these factors the most important and first one is varietal selection. Varieties should be selected according to the requirement of specific area and prefer varieties resistant to insects/pests and diseases. Sufficient amount of water and fertilizer should be supplied.Stubble height of 10-20 cm will resulted in high production of ratoon rice. Too low or too high temperature and light would reduce the grain yield and quality of rice. Optimal temperature is useful for higher yield. It was concluded that by keeping the management practices more efficiently, the yield of main rice as well as ratoon rice could be increased. There is a need of more studies focusing on improvement of the quality of ratoon rice. 相似文献
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活性腐殖酸复合肥对水稻产量和品质的影响 总被引:2,自引:0,他引:2
通过盆栽对比试验进行施用化肥和腐殖酸复合肥不同用量对水稻产量及品质的影响研究。结果表明:在一定的用量范围内,水稻的株高、分蘖数、生物产量和籽粒产量都以腐殖酸复合肥处理最高;超过适宜用量时,均呈现降低趋势。等养分含量条件下,腐殖酸复合肥水稻籽粒中淀粉、蛋白质含量均高于化肥。施用腐殖酸复合肥水稻籽粒中淀粉含量和产淀粉量均以FM4处理最高;施用化肥其含量均以HF4处理最高。施用腐殖酸复合肥水稻籽粒蛋白质含量以FM2处理最高,产蛋白质量以FM4处理最高;化肥处理中均以HF3处理最高。从提高水稻籽粒产量和品质角度来说,腐殖酸复合肥处理FM3,每盆施用20 g为最佳施肥方案。过量施用含腐殖酸的肥料会抑制水稻的生长,降低氮磷钾肥料的作用。 相似文献