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黑龙江省大豆“八字”高产栽培模式──良种、精播、深施、细管 总被引：1，自引：0，他引：1
黑龙江省大豆“八字”高产栽培模式──良种、精播、深施、细管东北农业大学杨庆凯黑龙江省农科院大豆所胡立成黑龙江省大豆栽培技术在６０年代主要推广了适期早播、合理密植。７０年代推广了“早、晚、密”栽培法、垄上双条播、深层施肥、垄沟（底）深松等许多典型单项增... 相似文献
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由黑龙江八一农垦大学研制试验的大豆“暗垄密”机械化配套高产栽培技术,十二月十日通过了由国内外著名的大豆专家王金陵教授等组成的技术鉴定委员会技术成果鉴定。大豆“暗垄密”高产栽培技术,实质内容就是平播、窄行、密植配套整体技术。它是在总结国内先进的“垄三”栽... 相似文献
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玉米原垄卡种大豆增产技术黑龙江省８５１０农场韩远征，李秋，涨莉黑龙江省牡丹江农场管理局科研所冯海红玉米茬原垄卡种大豆技术就是在玉米茬原垄越冬的基础上，第二年在原垄上播种大豆。１９９２～１９９４年，我场推广了玉米原垄卡种大豆１．２５万亩，平均亩产１８３... 相似文献
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黑龙江省是我国的大豆主产区，大豆生产的技术水平和科研水平在全国占有重要地位。近些年大豆亩产２５０公斤以上的高产典型不断出现，新的增产技术也有许多报道。目前推广的“垄三”、“高寒”、“大垄密”、“窄行密”等高新技术已在生产上广为应用，使黑龙江省的大豆产... 相似文献
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连作大豆松沟倒垄耕作及机械化种、管、收技术五九一六部队生产处高如先连作大豆松沟倒垄耕作，是在原垄作基础上，垄沟深松搅土，垄台破茬分土，在原垄沟部位起新垄的耕作方法。松沟倒垄、垄上精播、多位施肥、苗带喷洒、深松中耕、挠型收割，配套构成连作大豆耕、种、管... 相似文献
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大豆大垄高台密植栽培技术 总被引：2，自引：0，他引：2
大垄高台密植栽培技术是在“深窄密”模式的基础上,增加了土壤库容,而发展起来的一项垄平结合、宽窄结合、旱涝综防的大豆栽培模式。主要介绍该技术独特的技术优势和严格的操作标准。 相似文献
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大豆机械化配套高产栽培技术 总被引：5，自引：1，他引：4
自６０年代以来，黑龙江省垦区大豆种植方式几经变革，不断发展。６０－７０年代，垦区是以平播后起垄为主的种植方式。８０年代中期开始试验与推广垄作深松、分层深施肥和垄上双条精量点播栽培技术（简称“三垄”法），使垦区大豆由单条平播普遍改为垄作技术。至９０年代... 相似文献
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《Plant Production Science》2013,16(2):189-198
AbstractGrain number per spike of wheat is lower in early sowing than in the conventional standard cultivation in Yamaguchi, Prefecture, Japan. Components of the grain number per spike in five cultivars were analyzed with respect to temperature during the spike development period throughout three growing seasons 2001/2002, 2002/2003 and 2003/2004 to find the cause of the problem of early sowing cultivation. The plants sown in early-October and late-November were called the early sown group and the standard group, respectively, in the following. Three of the five cultivars, Hokushin, Akitakko and Nanbukomugi, showed a strong winter habit, which requires very cold temperatures for spike differentiation. The other two cultivars, Iwainodaichi and Airakomugi, had a moderate winter habit. Grain number per spike and grain yield were decreased by early-sowing (compare with the standard group) in almost all cultivars throughout the three growing seasons. The three cultivars which had a strong winter habit had fewer spikelets per spike in the early-sown group than in the standard group. The other two cultivars which had a moderate winter habit had fewer grains per spikelet in the early-sown group. The higher the temperature during the spikelet formation phase, which is from flag leaf initiation to terminal spikelet initiation, the higher the number of spikelets per spike in the standard group. The spikelet number per spike in the early-sown group increased with the increase in productive tillers under fertile conditions. Such conditions also increased the grain number per spike. 相似文献
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《Journal of Crop Improvement》2013,27(2):415-432
Summary This paper reviews the effects of allelopathic interactions in agroecosystems in Spain on plant physiological activity and their ecological advantages. The phenological stage of growth of donor plants and the effective allelochemicals in the soil solution while studying the role of phenolic compounds were highlighting. Finally possible future prospects and conclusions regarding weed control by allelochemi-cals under integrated crop management strategies are discussed. 相似文献
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以翔实的资料对2009年中国稻米生产、消费、进出口、供求平衡、库存、价格走势、购销政策和国际稻米供求等情况进行了全面地分析,对影响2010年稻米市场价格走势的各种因素进行了深入研究,并在此基础上对2010年我国稻米市场价格走势进行了预测,结论是我国稻米价格仍呈上行趋势。 相似文献
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Corné Kempenaar Thomas Been Johan Booij Frits van Evert Jean-Marie Michielsen Corné Kocks 《Potato Research》2017,60(3-4):295-305
Precision agriculture is a farming management concept based on observing, measuring and responding to inter- and intra-field variability in crops. In this paper, we focus on responding to intra-field variability in potato crops and analyse variable rate applications (VRAs). We made an overview of potential VRAs in potato crop management in The Netherlands. We identified 13 potential VRAs in potato, ranging from soil tillage to planting to crop care to selective harvest. We ranked them on availability of ‘proof of concept’ and on-farm test results. For five VRAs, we found test results allowing to make a cost-benefit assessment. These five VRAs were as follows: planting, soil herbicide weed control, N side dress, late blight control and haulm killing. They use one of two types of spatial data: soil maps or biomass index maps. Data on costs and savings of the VRAs showed that the investments in VRAs will pay off under practical conditions in The Netherlands. Savings on pesticide use and N-fertilizer use with the VRAs were on average about 25%, which benefits the environment too. We foresee a slow but gradual adoption of VRAs in potato production. More VRAs will become available given ongoing R&D. The perspectives of VRAs in potatoes are discussed. 相似文献
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Summary Diurnal changes in net photosynthetic rate were measured in a furrow-irrigated potato crop and in a riverbed crop where the
water table was always maintained at 20–28 cm from the soil surface. In the irrigated crop, the photosynthetic rate during
mid-afternoon was about half the peak rate observed at noon. This reduction was accompanied by a near tripling of stomatal
resistance, a 45% reduction in transpiration, and a 5-fold increase in the difference between leaf and air temperatures. No
such changes were observed in the riverbed crop where the photosynthetic rate remained nearly constant at about 0.9 mg m−2 s−1 between 9 a.m. and 4 p.m. Tuber yield in the riverbed crop was about 30% higher than in the irrigated crop. 相似文献
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体细胞无性系变异是一种重要的细胞工程育种技术,其应用于棉花育种的前提是建立高效的组织培养诱导再生植株体系.本文简要综述了棉花离体诱导植株再生研究的现状,重点讨论了棉花体细胞无性系变异的表现、利用方法及机理,提出了当前研究存在的问题并对今后的研究进行了展望. 相似文献