SRI在单季晚稻上的应用效果

水稻强化栽培技术体系(SRI)是20世纪80年代起源于马达加斯加的一种水稻高产高效栽培法。该栽培法的核心是：采取幼苗早栽、单本稀植、无水层湿润灌溉、增施有机肥等关键技术措施,强化稻株个体生长环境,强壮根系促进分蘖,充分挖掘个体生产潜力,从而达到大幅度提高产量的目的。2002年组织嘉兴、开化、淳安等地进行大区对比和大田观     

仙居县水稻强化栽培技术（SRI）试验示范结果初报

水稻强化栽培技术是一种高产高效栽培方法。为探索SRI在仙居县的适用性和增产潜力,2003年我们在横溪镇下陈村建立了一个面积为6．67hm^2的杂交籼稻粤优938 SRI示范方,并在该示范方内和白塔镇高迁村设置了水稻强化栽培秧龄、移栽密度、氮化肥用量及品种对比等4项试验。示范方前作以绿肥为主。     

SRI及其在浙江的应用前景

一、SRI的基本含义与特征SRI,即水稻强化栽培体系 (SystemofRiceIntensifi cation),是1983年由Henridelaulanie神父在马达加斯加提出的一种水稻高产高效栽培法。SRI的基本观点是 :为使稻株产量更高 ,每株必须有更多的分蘖、更多的有效穗 ,每穗有更多的粒数、更大的籽粒。为了使     

淮北水稻持续高产技术途径探讨

江苏省十多年来水稻单产一直徘徊不前,其主要原因除缺乏广适的、增产潜力大的水稻新品种外,在栽培技术上,由于传统手栽、塑盘抛秧、机械栽插、直播等多种栽培方式并存,导致高产栽培配套技术应用不能到位,已成为进一步提升全省水稻单产的障碍。本文通过对手栽、塑盘抛秧、机械栽插、直播等多种栽培方式的试验研究,探讨淮北稻区水稻持续高产技术途径,解决该区稻麦周年生产季节矛盾突出,时常干旱缺水,农田基本建设脆弱,务农劳力匮乏等问题。     

水稻田杂草化学防除技术

盘锦地区水稻田杂草群落经过多年衍变,现主要以禾本科稗草,莎草科萤蔺、镳草、扁秆镳草以及星接藻科水绵为优势杂草。在苗田和本田,主要采用封闭化学除草技术,苗田在播种覆土后封闭,本田分插前封闭和插后封闭,将杀稗草有特效的除草剂（如丁草胺等）与杀莎草和阔叶草有特效的除草剂（如吡嘧磺隆等）混配使用,有效防除田间杂草。     

水稻田杂草化学防除技术

盘锦地区水稻田杂草群落经过多年衍变,现主要以禾本科稗草,莎草科萤蔺、镳草、扁秆镳草以及星接藻科水绵为优势杂草。在苗田和本田,主要采用封闭化学除草技术,苗田在播种覆土后封闭,本田分插前封闭和插后封闭,将杀稗草有特效的除草剂(如丁草胺等)与杀莎草和阔叶草有特效的除草剂(如吡嘧磺隆等)混配使用,有效防除田间杂草。     

水稻节水灌溉技术研究现状与发展趋势

在论述水稻生产重要意义的基础上，对国内外水稻灌溉技术的研究现状进行了归纳和分析，重点分析了我国当代水稻节水灌溉技术的发展，并对水稻灌溉技术的研究趋势进行了前瞻。     

水稻旱种保苗技术的研究

水稻旱种是水稻节水栽培的一种种植方式。稻田旱整地后，15cm深的土壤含水量可达到25％以上，用播种机播种深1.5-2.0cm，覆土、镇压。当水稻长至2．5-3．0叶时，灌溉、建立水层，之后，正常水层管理，保苗密度500株／m2，产量不低于水直播。     

水稻强化栽培体系适宜移栽密度探讨

水稻强化栽培体系(SRI)不同移栽密度试验结果显示,以每公顷栽9万穴的处理产量最高,增产效应明显.增产原因是该处理具有穗数优势.     

水稻节水控制灌溉技术研究

几年来,通过对水稻节水控制灌溉技术的试验研究,探讨在控制灌溉基础上寻求确保水稻高产、提优的水稻生产新途径。试验证明:控灌区比常规灌溉区平均增产7.8%,节灌区比常规灌溉区平均增产5.5%,水稻节水控制灌溉对水稻生长发育、抗倒伏、抗病、提高产量和品质起到了重要作用,应大面积推广应用。     

烟后稻强化栽培(SRI)优势特点及关键技术

通过对烟后稻实施强化栽培(SR I)在生育期、产量、产量结构、分蘖动态、经济效益和生态效益等方面的差异分析,以及该稻作类型使用强化栽培有关技术的研究,确立了烟后稻实行SR I是一项省工、节本、增产增效的轻简型栽培方法,总结出一套以选用良种、培育壮秧、小苗移栽、单本稀植、好气灌溉、精确施肥、综合防治等技术为核心的超高产集成技术。     

Evaluation of management principles and performance of the System of Rice Intensification (SRI) in Bangladesh

Experiments were conducted at irrigated and rainfed lowland rice sites in Bangladesh to assess the performance of management practices that have become known as the System of Rice Intensification (SRI). At a research station, SRI management principles such as seedling age, plant spacing, application of organic manure, seedling densities, duration of planting, planting shape and time of planting were evaluated under SRI management as compared to previously established Best Management Practices (BMPs). In on-farm trials, SRI was compared with BMP on 40 farmers’ fields. Nutrient inputs and water management in BMP and SRI treatments were kept at comparable levels. Seedling age, ranging from just sprouted seed to 40-day-old seedlings, had no effect on grain yield in the winter season. In a plant spacing experiment subject to SRI, the highest and lowest grain yields of 7.82 and 5.41 t ha⁻¹ were obtained with spacing of 25 cm × 15 cm (narrow) and 40 cm × 40 cm (wide), respectively. In SRI, seedling density (1–2 seedlings per hill), planting durations (≤15 min to 1–3 h after uprooting) or root placement (L-shape and J-shape) had no effect on grain yield. With regard to time of planting, the highest grain yields were observed with transplanting in the 3rd week of December, with no difference between SRI and BMP management systems. In on-farm trials, BMP gave significantly higher grain yield compared to SRI and farmers’ practice in a triple-cropped area, but grain yields were similar with SRI in a double and single-cropped area when spacing was narrow. The highest profit was obtained with BMP followed by SRI and farmers’ practice in the single-cropping area. Major findings from this study are that under comparable levels of net nutrient input and water management (i) well-implemented BMPs for rice are more efficient for producing high yields than SRI and (ii) there is no intrinsic yield advantage of SRI that could be caused by its individual crop management techniques or some unknown synergism of the different SRI practices proposed.     

强化栽培条件下水稻的根系特征及其与产量形成的关系

以协优527为材料，研究了强化栽培条件下水稻的根系特征及其与产量形成的关系。结果表明，与常规栽培相比，强化栽培能明显增加从分蘖至成熟各生育时期的单株根系干重，降低齐穗后根系中可溶性糖含量，提高生育后期根系的生理活性及磷含量，特别是在籽粒灌浆结实的关键时期，SRI栽培的根系伤流强度明显高于接常规栽培。因此，强化栽培可以延缓后期根系及叶片衰老，提高结实率及千粒重，进而提高产量。     

Stubborn facts: Still no evidence that the System of Rice Intensification out-yields best management practices (BMPs) beyond Madagascar

For more than a decade, the System of Rice Intensification (SRI) has been vigorously promoted as a method for substantially improving the yield performance of conventional rice agriculture through a set of synergistic management principles that are purported to be accessible to poorer farmers and better for the environment. To evaluate the empirical basis for claims that SRI increases the yield ceiling for rice (i.e. the physiological yield potential), McDonald et al. [McDonald, A.J., Hobbs, P.R., Riha, S.J., 2006. Does the System of Rice Intensification outperform conventional best management? A synopsis of the empirical record. Field Crops Res. 96, 31–36] conducted a retrospective analysis of field experiments that had side-by-side yield comparisons of SRI and current best management practices (BMPs). In addition to studies from Madagascar where SRI was first conceived, 35 site-years of data were compiled from nine different Asian countries. Aside from one set of experiments in Madagascar where SRI more than doubled rice grain productivity with respect to BMPs (140–245% increase), we found no evidence of a yield advantage of this magnitude elsewhere. In 24 of 35 site-years, SRI yields were less than those attained with BMPs and in no case did the SRI yield exceed BMPs by more than 22%. Uphoff et al. [Uphoff, N., Kassam, A., Stoop, W., 2008. A critical assessment of a desk study comparing crop production systems: the example of the ‘system of rice intensification’ vs. ‘best management practice.’ Field Crop Res. 108 (1), 109–114] contest these findings with criticisms of our methodology and, more importantly, contend that key evidence demonstrating yield advantages for SRI over BMPs was not considered in our analysis. The assertion of key evidence that is at odds with our conclusions is false, as we detail in this response. Beyond Madagascar, there is still no empirical evidence that SRI has a unique yield advantage over current BMPs for rice. Then and now, our original article [McDonald, A.J., Hobbs, P.R., Riha, S.J., 2006. Does the System of Rice Intensification outperform conventional best management? A synopsis of the empirical record. Field Crops Res. 96, 31–36] accurately characterizes the global experience with the System of Rice Intensification.     

水稻强化栽培（SRI）对农业的增产增效和对环境的改善作用

水稻强化栽培是一种新型的栽培技术,具有明显增加产量和减少投入的作用．其推广应用对传统的农业生产产生了重要的影响。     

水稻强化栽培体系

水稻强化栽培体系（SRI0是一种新的高产栽培方法，首先在马达加斯加提出和应用，取得了成倍的增产效果，近年来，在印尼、菲律宾等国以及我国都在进行试验，初步显示了较大的增产潜力。对SRI这一新的栽培体系的主要方面作了简要介绍。     

强化栽培技术（SRI）在常规早籼稻上应用效果初探

2006～2007年试验结果表明,常规早籼稻应用水稻强化栽培技术能明显增强个体生长优势,促进大穗形成、单株最高分蘖及成穗数和每穗粒数大幅度增加;在推迟播种、插栽丛数和基本苗比常规栽培减少35．7％～57．2％。N02T,单产虽因有效穗减少而减产,但只减产1．1％～7．1％。     

水稻强化栽培增产机理及其关键技术

2003—2004年在温州市开展了水稻强化栽培多点试验示范,强化栽培平均比常规栽培增产10.8%。早发优势明显、植株生长强健、每穗粒数多是强化栽培增产的基础。据此提出了强化栽培的主要技术措施。