水稻苗床应用壮苗型叶面喷施剂试验报告

庆丰科研站选用天达2116(壮苗型)、美奇天然海澡肥、地福来、爱丰腐殖酸有机肥进行水稻苗床应用壮苗型叶面喷施剂试验。经过调查对比,不论调不调酸、施不施肥,四种壮苗喷施剂都有很好的壮苗作用,其中天达2116、地福来壮苗作用更好,此项技术可推广。     

育秧床温调控剂及分蘖促进剂在水稻上的应用研究

对水稻进行育秧床温调控剂及分蘖促进剂应用试验研究,结果表明:床温调控剂处理的水稻秧苗素质显著改善,株高降低14.9%、地下百株干重提高29.59%、根冠比增加31.74%。移栽本田后,穗数增加34.7穗/m2,增产率达到5.7%;分蘖促进剂的应用明显加快了水稻分蘖前期的分蘖速度,收获穗数增加19.9穗/m2,增产率达到6.6%。两者配合应用增产效果更好,水稻的收获穗数增加54.6穗,增产率达到12.7%。     

井灌水稻节水增温技术

针对寒地井灌稻区井水温度低影响水稻产量的实际问题，开展井灌水稻节水增温技术研究。结果表明，采用井水雾化增温、渠道上下铺盖塑料薄膜、本田地膜覆盖、插秧后浅灌与间歇灌溉等整合配套技术，可使寒地井灌水稻增产41．o％，节约灌水60．2%，667m^2增收131．61元。     

井灌水稻节水增温技术

针对寒地井灌稻区井水温度低影响水稻产量的实际问题,开展井灌水稻节水增温技术研究。结果表明,采用井水雾化增温、渠道上下铺盖塑料薄膜、本田地膜覆盖、插秧后浅灌与间歇灌溉等整合配套技术,可使寒地井灌水稻增产41.0%,节约灌水60.2%,667m2增收131.61元。     

寒地水稻井灌节水增温增产技术研究

试验设井间控、井间歇、渠间控、渠间歇四个不同灌溉方式,进行处理间不同时期灌水量、土壤温度的日变化、气温与土壤温度的关系、井水灌溉不同时间内水温的变化、产量性状的调查,研究不同灌溉方式对水稻生育及产量的影响、公顷效益的分析,结果表明:①从整个生育期用水量分析,井间控与渠间控比井间歇与渠间歇节水,分蘖期、长穗期节水量最大。井间控比渠间歇节水21.2%,比井间歇节水18.2%。②井间控利用了快、少灌水原则,利用大面积田面进行晒水,与井间歇相比,增温速度快,增温幅度大,增温效果好。③井间控有较明显的节水和增产效应,是较理想的节水灌溉方式。     

水稻分蘖特性及成穗规律研究进展

总结了水稻分蘖的基本特性及研究现状,指出通过提高水稻分蘖成穗率以提高水稻群体质量,从而提高水稻产量是水稻高产栽培的可行途径,还对水稻分蘖成穗率的应用研究前景进行了分析。     

寒地水稻井水综合增温技术探讨

井水综合增温技术是寒地水稻抗低温，促早熟的一项重要内容，采用该技术，可使井水从出口处的６℃，经过一系列增温技术环节，最终到达本田的水田在１６℃以上，促使水稻返青加快，分蘖力增强，成穗率提高，增产效果显著。     

水稻壮秧剂培育棉花壮苗效果试验

培养棉花壮苗是提高棉花产量,促进植棉增收的关键一环。多年来,在棉花育苗过程中,由于气候、不当的施肥施药以及茬口衔接等方面的原因,生产上常出现苗期发病死苗重,棉苗素质差,高脚苗多的情况,给棉花生产带来诸多不利。本试验旨在运用水稻壮秧剂具有施肥、调酸、消毒和化控四合一功能的作用,探索该剂在棉花育苗中不同施药方法和不同用药量对培育壮苗和提高成苗率的效果,为生产上大面积推广提供科学依据。1　材料与方法1 1　试验材料供试药剂为葵花牌强力水稻壮秧营养剂(下称壮秧剂),由浙江江山市兴农复合专用肥厂生产提供(其中的母剂由黑龙…     

寒地水稻井水综合增温技术探讨

井水综合增温技术是寒地水稻抗低温、促早熟的一项重要内容。采用该技术，可使井水从出口处的6℃，经过一系列增温技术环节，最终到达本田的水温在16℃以上。促使水稻返青加快，分蘖力增强，成穗率提高，增产效果显著。     

分蘖肥不同施用时期对水稻产量和品质的影响

通过对分蘖肥不同施用时期对水稻产量和品质的影响研究,结果表明,随着分蘖肥施用时期的后移,水稻生育期延迟;株高和空瘪率逐渐增加,穗长和褐变穗发病率逐渐降低,穗颈瘟逐渐增加,倒伏程度没有明显变化;水稻平方米穗数逐渐增加,而穗实粒数、结实率、千粒重和产量逐渐降低;水稻的垩白率和垩白度没有明显变化,精米率和整精米率逐渐降低。     

Tillering,Lodging and Yield under Deep Water Treatment in Direct-seeded Rice

Abstract

The tillering, lodging and yield of two types of direct-seeded rice (dry and water seeding), under deep water (DW) and ordinary water treatment (OW), were compared in 1994 and 1995. The percentage of productive tillers to maximum tiller number under DW was 85% for transplanted, 60% for water-seeded and 84% for dry-seeded rice (mean 76%), while that under OW was 59, 50 and 74% (mean 61%), respectively, in both years. By DW, longer culm length and fresh weight tended to be increased, thus elevating bending moment, but the culm diameter and culm-breaking weight were increased showing the lower lodging index. In water-seeded rice, the suppression of the development of non-productive tillers by DW was relatively weak compared to that in dry-seeded or transplanted rice. Although the number of panicles was similar under DW and OW, 1000-grain weight and percentage of grain filling were significantly improved by DW. The grain yield was higher under DW, and the mean grain yields of the two years were 4.82 t ha^?1 under DW and 4.48 t ha^?1 under OW.     

水稻无水层栽培试验总结

本试验通过在水稻分蘖期间实行无水层管理,在保证水稻必要的生理生态需水的前提下,尽可能地减少田间的水分浪费,提高地温,促进分蘖早生快发。此项栽培技术既可以提高经济效益,又可以节约水资源,还可以有效地改善水稻的生育环境,减轻倒伏、早衰、病虫害等问题,是一项可以大力推行的栽培模式。     

水稻种子等离子体处理技术试验报告

水稻种子经过等离子体处理,能够提高种子的发芽势和发芽率,使水稻的成穗率明显提高,通过试验比较,处理较对照水稻增产450.8 kg/hm2,平均增产5.6%。并且,水稻种子经过等离子体处理采用的是物理方法,无任何化学物质残留及污染,大大保护了环境,对于开发绿色环保食品具有重要作用。     

水稻无土育苗与常规育苗栽培对比试验

通过对水稻无土育苗与常规育苗的田间试验进行对比,结果表明:无土育苗较常规育苗的水稻分蘖力强,根部相对于常规育苗健壮。在穗数、穗粒数、千粒重等产量性状上优于常规育苗处理,在最后产量测定中,无土育苗的产量为620.4 kg/667 m2,较常规育苗增产3.4%。     

水稻施用硅钙肥试验总结

为了研究硅钙肥对水稻生育及产量的影响,采用寿益牌硅钙肥进行大区对比试验,供试的水稻品种为辽粳9号。试验结果表明:硅钙肥可促进水稻分蘖,茎秆高大粗壮,增强抗逆性,增产5.7%～7.3%,增收31.20、18.60元/667 m2。     

水稻深层施肥技术试验

通过对水稻只施基肥和穗肥的深施施肥试验研究,结果表明:深层施肥法可提高肥料利用率25%,增加水稻有效分蘖和成穗率,增加产量10%以上,节省人工,并避免贪青晚熟,减轻病害。     

水稻配方肥肥效校正田间示范报告

介绍了测土配方施肥肥效在田间试验的情况。试验结果表明,配方施肥对提高水稻产量有着重要的作用,合理施肥会有效提高水稻的有效穗数、穗粒数、实粒数及产量,具有明显的节本增收作用。     

Tillering and Yield of Rice Cultivars under a Water Storage-Type Deep-Irrigation Regime

Abstract

This study aimed to clarify the effects of water storage-type deep irrigation (WSDI) on the yields of various rice cultivars used in the Tohoku district of Japan. We compared a WSDI plot (DP) with a standard irrigation plot (SP) with regard to the growth, yield, and yield components of the rice cultivars grown in these plots during 4 years (2002–2005) in Sendai, Japan. In 2003, which had a cool summer, the yields in DP were considerably higher than those in SP, thus confirming that WSDI mitigated the cool summer-induced damage to rice. The yields in DP were not lower than those in SP during the other 3 years (normal climatic years), indicating that various cultivars could adapt to WSDI. Although high-yielding rice plants cultivated by well-experienced farmers under deep-water irrigation regimes have large panicles, the spikelet number per panicle and the yield in DP were not higher than those in SP. Based on the results of the comparison between the cultivation system of WSDI and that of high-yielding deep-water irrigation regimes practiced by such farmers, we speculated that to achieve a higher yield under WSDI, other cultivation techniques need to be incorporated into WSDI.