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Effect of closed circuits drip irrigation system and lateral lines length on growth, yield, quality and water use efficiency of soybean crop
Closed Circuits Drip Irrigation Lateral Lines Soybean WUE
2013/2/28
Field experiment was conducted for one growing season (2012) in clay loam soil at the Experimental Farm of Faculty of Agriculture, Southern Illinois University at Carbondale (SIUC), USA on soybean cro...
Peculiarities of feed contamination with citrinin and ochratoxin A
Ochratoxin A Citrinin Immunoassay Feeds Cereals
2013/2/27
Occurrence of citrinin and ochratoxin A in different feed ingredients and compound feeds was screened by accredited methods based on the indirect competitive enzyme-linked immunosorbent assay. High fr...
Required amounts of medium and fertilizer for potted culture of zucchini
Zucchini Rice Husk Charcoal Peat Potted Culture Fertilizer
2013/3/4
In Japan, zucchini culture has yet to get underway, and the current costs of zucchini can be attributed to damage from soil-borne disease and the unstable yields due to seasonal change of female flowe...
Diversity analysis of chickpea (Cicer arietinum L.) germplasm and its implications for conservation and crop breeding
Chickpea Morphological Characterization SDS-PAGE RAPD SSR Cluster Analysis
2013/3/4
The exploration of genetically variable accessions is the key source of germplasm conservation and potential breeding material for the future. The more diverse group of cultivars provides an ample opp...
Cladosporium: Causal agent of scab in purple passion fruit or gulupa (Passiflora edulis Sims.)
Pathogenicity Passiflora Incubation Latency
2013/2/28
The Scab of purple passion fruit or gulupa (Passiflora edulis Sims.) is a serious disease, affecting all aerial organs of the plant, but also to reducing the visual quality of the fruits, which reduce...
Complementary effects of organic and mineral fertilizers on maize production in the smallholder farms of Meru South District, Kenya
Soil Fertility Organic Carbon Total Nitrogen Benefit Cost Ratio
2013/2/28
Low soil fertility is a major constraint to maize production in the small holder farms of Meru South District. This is mainly attributed to the mining of nutrients due to cropping without external add...
江苏省水稻秸秆资源量及其可收集量估算
水稻 草谷比 桔杆资源 收集系数
2012/8/1
以江苏省23个主要水稻品种为研究对象，对不同品种类型、种植方式和单产水平的水稻进行取样调查，分析不同生产条件下的水稻草谷比及不同留茬高度下的秸秆可收集量，结合相关统计资料估算江苏水稻秸秆资源数量及可收集量。结果表明，水稻草谷比在不同品种类型间差异较小（0.98～1.03），不同种植方式（0.80～1.19）和不同单产水平（0.83～1.12）间差异较大；在留茬高度为5、15、20和25cm时，水稻...
“吉农大935”是吉林农大科茂种业有限责任公司于2005年组配而成的玉米杂交种。在吉林省2009—2010年区域试验中平均产量11 7289 kg／hm2,比对照品种“郑单958”增产106％。2010年生产试验中平均产量10 8099 kg／hm2,比对照品种“郑单958”增产107％。该品种具有耐密性好、丰产性好、容重高、品质优、抗病性较强等特点。2011年2月通过吉林省农作物品种...
Fuzzy comprehensive evaluation of five forage shrubs in Mu Us sandland, China
Chemical Composition Fuzzy Multifactorial Model
2013/2/27
Chemical compositions during different growing periods, preference and in vitro digestibility at the post-fruiting period of five psammophyte shrubs, which include Caragana intermedia, Caragana korshi...
为促进甘肃陇东耕地生态系统和经济持续健康发展，该研究采用生产力和生态服务价值的估算方法，对研究区域耕地净第一性生产力（ＮＰＰ）和生态服务功能的时空分异进行定量分析。结果表明，１９９７－２００５年陇东黄土高原耕地的ＮＰＰ和生态服务单位面积价值变化不明显，而总量略有上升。同时，耕地的ＮＰＰ和生态服务单位面积价值在空间分布上有显著的区域差异性，该区域可分成ＮＰＰ 和生态服务价值相对较低的西北区和相对较高...
超级稻农业技术推广到位效率分析
超效率DEA 推广效率 超级稻 技术推广
2012/2/22
【目的】从投入产出角度分析超级稻种植过程中各生产环节的技术推广到位效率。【方法】通过对超级稻种植环节的分解，确立农业技术推广到位效率的关键指标，借助于超效率DEA方法对获取的第一手田间数据进行分析处理。【结果】超级稻示范户水稻生产效率都有效，非示范户的生产效率平均仅有80%；3个时间偏差指标对产量的总影响占15%；通过松弛变量分析，对于非有效指标的离差程度进行了分析和定量说明。【结论】超级稻推广环...
2005~2007年以中层黑土土壤为研究对象，研究免耕和秋翻处理对黑土农田土壤温湿效应的影响。结果表明：不同耕作处理对春季播种期土壤含水量影响较大，玉米田和大豆田免耕处理分别显著高于秋翻6.2%和6.6%。在玉米抽雄期，玉米田和大豆田2种耕作处理条件下土壤含水量均没有显著差异，但与秋翻相比，免耕保持了较好的耕层土壤水分。春季播种期耕层免耕处理的土壤温度明显低于秋翻。对玉米出苗期到抽雄期玉米田和大豆...
为弥补秧苗超龄对长秧龄机插稻生长产生的负效应，以杂交中稻品种冈优906为材料，设置施氮量和氮肥基、追配比两因素试验，研究了氮肥运筹对机插水稻产量及氮素利用率的影响。结果表明：长秧龄机插稻植株氮素积累动态符合logistic曲线增长规律。随施氮量增加，植株氮素积累总量增加，稻谷生产效率、氮素收获指数、氮素农学效率和氮素生理利用率均减小，氮素当季利用率呈先增后减的趋势。同一施氮水平下提高穗肥比例，氮素...
大豆亲本差异对杂种F1产量的影响
大豆 亲本差异 杂种优势 SSR标记
2015/10/10
以不同来源的36个大豆育成品种为亲本，配制29个杂交组合，分析了F1代产量性状之间的杂种优势、亲本间各性状差异与杂种优势的关系、来源地不同的亲本以及亲本间遗传距离的杂种优势表现。结果表明：大豆产量的杂种优势主要来源于单株荚数和粒数的优势；单株荚数和单株产量超亲优势显著高于百粒重和株高等性状；亲本间单株荚数、单株产量和百粒重差异小的后代容易产生较强的杂种优势；国内×国外品种组合的超高亲优势>黄淮×其...