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冬春保护地番茄生产一般在4月份以后便进入结果中后期.随着气温的上升以及植株生长势的逐步下降.生产上应特别注意水肥管理、植株调整、温湿度的合理控制及病虫害的防治.主要措施包括: 相似文献
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我市近年来在种植大棚番茄方面取得了很大的进步,我市结合自身气候土地实际情况,改良了种植大棚西红柿的技术,扩大了种植大棚番茄的种植面积,实现了整年都有新鲜番茄上市这一目标,极大地提高了我市的经济效益。我们要把这一先进技术推广开来,让更多的人民受惠。 相似文献
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大棚番茄栽培应选择早熟品种。目前适栽的品种有上海903、早粉2号、佳红(F1)菜。强丰、中蔬4号、5号菜中晚熟非自封顶品种,由于果形、品质,丰产性能好,也可以留三穗果,提早摘心,进行早熟栽培。 相似文献
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福建省沿海地区设施大棚番茄冬春大茬生产的生产期有8个月左右,每667 m2收入2.0万~2.5万元。该文从品种选择、播种育苗、整地定植、水肥管理、整枝打叶、吊蔓与落蔓、保花保果疏果、大棚温湿度管理、病虫害防治、适时采收等几个方面总结了南方设施大棚番茄冬春大茬高效栽培技术。 相似文献
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对设施番茄水肥一体化技术的应用效果进行研究,结果表明:水肥一体化技术可实现番茄单次节水283.5 m3/hm2,番茄全生育期节水3 402 m3/hm2,节水率达到58.2%;节肥量1 170 kg/hm2,节肥率39.0%;增产12 375 kg/hm2,增产率达7.5%。 相似文献
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番茄是山东潍坊市目光温室生产中的主要作物之一,但实际生产中经验丰富的栽培技术专家的不足制约着目光温室番茄产量与品质的提高。该研究是基于北京农业信息技术研究中心提供的农业专家系统开发平台PAID3.0所进行二次开发的智能化的计算机辅助系统,包括目光温室番茄高产栽培的管理措施及病虫害的识别、为害特点、综合防治方法等。 相似文献
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为验证腐殖酸复合生物肥在日光温室番茄上的施用增产效果,选用液体冲施型腐殖酸复合生物肥,采用多处理随机区组试验,结果表明:常用肥+腐殖酸生物肥配施追肥与常用肥单施追肥比较,番茄的植物学性状、产量及经济效益均存在显著差异,常用肥+腐殖酸生物肥配合追施产量高达8697.62kg·(667 m2)-1,较常用肥单施追肥增产671.01kg·(667 m2)-1,增产率8.36%,收益达20544.28元/667m2,增收1580.4元/667m2,增加8.33%,增产增收效果明显,适宜在温室番茄生产上推广应用。 相似文献
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David L. Ehret Bernard D. Hill Tom Helmer Diane R. Edwards 《Computers and Electronics in Agriculture》2011,79(1):82-89
The recent development of tools to automatically monitor important crop attributes in situ such as yield, growth and water use offers an opportunity to relate real-time crop status to current environmental conditions. In this study, continuous minute-by-minute measurements of crop yield, growth and water use averaged over weekly, daily, or hourly intervals throughout the growing season were used to determine crop response to changes in the greenhouse environment. The data were obtained from crop monitoring stations established in both commercial and research greenhouses. Crop yield measurements obtained from the monitoring system were generally in very close agreement with yields recorded over a much larger area in the commercial greenhouse. Yield was more closely related (R2 = 0.65) to radiation from the previous week than to radiation in the current week (R2 = 0.56). In addition, a neural network (NN) model of yield which included radiation as an input was better at predicting yield in the following week (R2 = 0.70) than yield in the current week (R2 = 0.57). These results indicate a lag effect of radiation on yield. Similarly, yield was more positively related to growth from the previous week (R2 = 0.32) than to growth from the current week (R2 = 0.17). Neural network models of daily growth at both sites (R2 = 0.74, 0.69) included day of the year, temperature and CO2 as inputs. A negative relationship between day of the year and daily growth indicates a decline in crop vigor through the measurement period. Neural network models of daily crop water use for the two sites were stronger (R2 = 0.91, 0.85) than those for growth, highlighting the difference in physiological complexity between the two. A model of canopy water status as affected by environmental conditions was generated using hourly measures of tomato canopy mass change. Although the rate of canopy mass gain through the day was often constant, there were days when the plant experienced periods of reduced mass gain mid-day. On those days, the amount of deviation from a constant rate was positively related to radiation, day temperature and water use, suggesting periods of water stress. With subsequent recovery of mass gain rates late afternoon, these deviations did not affect canopy growth for the day. Overall, automated monitoring provides new information on the crop which may readily be incorporated into models of crop performance. 相似文献
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引进温室项目管理问题 总被引:1,自引:0,他引:1
上海引进荷兰和以色列温室蔬菜生产技术项目管理是提高上海蔬菜生产水平的措施之一.引进温室投资较高,有必要对引进温室加强管理,发挥引进温室功能,提高经济效益进行探索.文中提出了若干引进温室项目管理对策和建议. 相似文献
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Manoj Kumar Gupta D.V.K. Samuel N.P.S. Sirohi 《Computers and Electronics in Agriculture》2010,73(2):133-145
A decision support system was developed for greenhouse seedling production by incorporating tomato seedling growth models to attain the desired dry weight of tomato seedlings at the time of transplant. Tomato seedlings were produced in a greenhouse to develop growth models, which were divided into emergence, and post emergence. These mathematical models were used to develop a decision making process in the form of a DSS. The DSS was developed in visual basic 6.0. The DSS has two modules long term planning and daily temperature management. The former module deals with the long term planning of seedling production and advice on average temperature and supplementary light depending on users input, while the other module deals with daily temperature management and advice on hour to hour for temperature control strategies as per the prevailing environmental and greenhouse conditions, and required temperature conditions to achieve the predefined target of seedling growth in terms of days required for seedling production. The developed algorithms attempt to maximum use of ambient conditions and minimum use of supplementary expensive energy. The feature not only hardens the seedlings but also reduces the cost of seedlings hardening. 相似文献
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复合基质在大棚番茄无土栽培上的应用研究 总被引:2,自引:0,他引:2
【目的】初步探讨发酵后的部分农业有机废弃物替代草炭在大棚番茄无土栽培中的应用效果。【方法】以番茄品种"金棚朝冠"为试材,采用金宝贝基质营养土发酵助剂发酵玉米秸秆、玉米芯、稻壳,与自然腐熟的牛粪和河沙按体积比组配成4种复合基质(基质A:60%玉米秸秆+20%河沙+20%牛粪;基质B:50%玉米秸秆+10%玉米芯+20%河沙+20%牛粪;基质C:50%玉米秸秆+10%稻壳+20%河沙+20%牛粪;基质D:40%玉米秸秆+10%玉米芯+10%稻壳+20%河沙+20%牛粪,以上均为体积分数),并配施烘干鸡粪和三元复合肥,以50%草炭+25%珍珠岩+25%蛭石(CK1)、常规土壤栽培(CK2)为对照,研究不同基质对春夏季大棚番茄生长特性、产量和品质的影响。【结果】栽培前,已添加等量基肥的4种复合基质,其容重、总孔隙度、pH值和EC值都在番茄无土栽培适宜的理想基质范围之内;在番茄定植后的整个生育期内,4种复合基质中只有基质B番茄的株高和茎粗接近于CK1和CK2;拉秧时基质B中番茄的根冠比最大;基质B的栽培效果在4种复合基质中最优,番茄产量仅比CK1和CK2分别减少1.1%和1.9%,番茄果实糖酸比和维生素C含量与CK2相比分别提高72.3%和13.0%,番茄果实硝酸盐含量与CK2相比极显著降低26.1%。【结论】复合基质B可以代替草炭用于大棚番茄的无土栽培,从而达到资源化利用农业废弃物,解决设施蔬菜生产过程中土壤盐渍化和连作障碍问题及提高果实品质的目的。 相似文献