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对症施治小麦黄苗
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作者 苗昌泽 《山西农业(致富科技版)》 1994年第11期40-41,共2页
引起小麦苗发黄的原因很多,必须辨症查因,对症施治,才有效果。 1.缺氮 表现为麦苗均匀地褪绿变黄,叶尖干枯,下部老叶发黄枯黄,植株矮小,叶片弱,分蘖少而瘦弱。这种黄苗多出现在土地瘠薄、底肥不足或追肥不及时的地块。应及时追施速效性... 引起小麦苗发黄的原因很多,必须辨症查因,对症施治,才有效果。 1.缺氮 表现为麦苗均匀地褪绿变黄,叶尖干枯,下部老叶发黄枯黄,植株矮小,叶片弱,分蘖少而瘦弱。这种黄苗多出现在土地瘠薄、底肥不足或追肥不及时的地块。应及时追施速效性氮素肥料,如碳铵、尿素、人粪尿素等。也可叶面喷施1. 展开更多
关键词 黄苗 小麦苗 叶尖 发黄枯 叶面喷施 叶脉 缺锰 辨症 追施 木灰
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杂交中稻后期田间管理
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作者 苗泽昌 《现代农业科学》 1994年第6期5-5,共1页
要实现杂交中稻高产优质,后期的田间管理应抓好以下的措施。 1.补施粒肥 中杂抽穗后功能叶逐渐枯黄,如脱肥以致叶片过早发黄枯死,叶面积减少,光合作用的能力即被削弱。因此,补肥增源,延长叶片寿命,提高叶片光合能力,是促进粒多而饱满的... 要实现杂交中稻高产优质,后期的田间管理应抓好以下的措施。 1.补施粒肥 中杂抽穗后功能叶逐渐枯黄,如脱肥以致叶片过早发黄枯死,叶面积减少,光合作用的能力即被削弱。因此,补肥增源,延长叶片寿命,提高叶片光合能力,是促进粒多而饱满的重要措施之一。 展开更多
关键词 杂交中稻 高产优质 光合作用 后期田间管理 稻粒黑粉病 发黄枯 叶片寿命 叶面积 粉锈宁
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Application Prospects for the Innovation of Defined Fungal Starter in Rice Wine Fermentation
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作者 Ngo Thi Phuong Dung Huynh Xuan Phong 《Journal of Life Sciences》 2011年第4期255-263,共9页
The feasibility of pilot-scale manufacture of defined fungal starter and its application in rice wine production from different local starchy materials were investigated. Starter consisting of Arnylomyces rouxii and S... The feasibility of pilot-scale manufacture of defined fungal starter and its application in rice wine production from different local starchy materials were investigated. Starter consisting of Arnylomyces rouxii and Saccharomyces cerevisiae gave high performance in winemaking when prepared in conditions of rice flour 80% and cassava flour 20% with 4 incubation days. The starter level at 20% was favourably employed for manufacture with the initial amount of I0 kg mixed-flours, Dry starter granules which were vacuum packed could adapt ambient temperature (approx. 28-32℃) during 8 months of storage. The defined starter performed as superior inoculum for winemaking from different agricultural starchy resources. The undesirable bacteria were found at approx. 2 Log CFU/g of dry starter. By morphology, biochemical and physiological growth and the genetic partial 16S analyses, three bacterial isolates were characterized as Bacillus subtilis/amvloliquefaciens which may contaminate tbod but not cause food poisoning and not considered as a human pathogen. 展开更多
关键词 Defined starter rice wine alcoholic fermentation pilot-scale manufacture undesirable bacteria.
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Effect of weather conditions on the incidence of Lophodermium yellow needle blight in the dwarf mountain pine in the Karkonosze and Izerskie Mountains (Poland)
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作者 Wojciech PUSZ Ryszard WEBER +1 位作者 Andrzej DANCEWICZ Wlodzimierz KITA 《Journal of Mountain Science》 SCIE CSCD 2016年第4期725-733,共9页
The study aimed to determine, by using a statistical model, the effect of weather conditions on the incidence of Lophodermium yellow needle blight causing by new species for science- Lophodermium corconticum, in the m... The study aimed to determine, by using a statistical model, the effect of weather conditions on the incidence of Lophodermium yellow needle blight causing by new species for science- Lophodermium corconticum, in the mountain dwarf pine growing in the subalpine Karkonosze Mountains and the Izerskie Mountains(Poland). Needles showed symptoms of yellow spots, gradual discolouration and premature fall in July. The assessment of healthiness of infected mountain dwarf pine needles spanned three years(2011- 2013) and was conducted in several test sites in the Karkonosze and Izerskie Mountains. The results were analyzed by taking into account the meteorological conditions. Field observations seem to indicate that the highest infestation of mountain dwarf pine occurs in June and July, while September and October see a significantly lower disease index in the Karkonosze Mountains. The lower indices of the infestation of mountain dwarf pine are characteristic for the vegetation in the Hala Izerska high mountain pasture; whereas the environmental conditions prevailing in the Kocio? Ma?ego Stawu cirque and above the Samotnia hostel are conducive to the development of Lophodermium yellow needle blight. 展开更多
关键词 Mountain dwarf pine Fungal diseases Pathogenic fungi Lophodermium corconticum Statistical model
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