论文部分内容阅读
谈谈秋繁/秋繁注意事项/秋繁是来年养蜂的关键
【出 处】
：
中国蜂业
【发表日期】
：
2021年10期
其他文献
Assembly and co-occurrence patterns of rare and abundant bacterial sub-communities in rice rhizosphe
Nitrogen (N) deep placement has been found to reduce N leaching and increase N use efficiency in paddy fields. However, relatively little is known how bacterial consortia, especially abundant and rare taxa, respond to N deep placement, which is critical f
C-type lectins (CTLs) are a superfamily of Ca2+-dependent carbohydrate-recognition proteins, and an important pattern recognition receptor (PRR) in insect innate immunity which can mediate humoral and cellular immunity in insects. In this study, we report
Characteristics of maize residue decomposition and succession in the bacterial community during deco
Microbes are decomposers of crop residues, and climatic factors and residue composition are known to influence microbial growth and community composition, which in turn regulate residue decomposition. However, the succession of the bacterial community dur
Drip irrigation incorporating water conservation measures: Effects on soil water–nitrogen utilizatio
The Northeast Plain is the largest maize production area in China, and drip irrigation has recently been proposed to cope with the effects of frequent droughts and to improve water use efficiency (WUE). In order to develop an efficient and environmentally
蜂群一旦起盗会给蜂场带来重大损失.起盗原因有多种,主要发生在外界蜜源缺乏时,制止盗蜂应以预防为主,辅以止盗措施,才能有效避免损失.rn一、预防盗蜂入侵rn1.外部防护rn把蜂箱缝隙糊严,盗蜂无法入侵.缺蜜季节缩小巢门,只能1～2只蜂出入即可.
期刊
文章旨在评估不同处理方式高粱型日粮对肉鸡生长性能、养分消化及胴体性状的影响.试验将520只平均初始体重接近的肉仔鸡随机分为4组,每组5个重复,每个重复26只,试验日粮分为4组,采用多因素设计,即2种高粱处理方式(膨化和制粒)及2种粉碎粒度(500μm和800μm),分别作为T1～T4组.结果:T1和T2组肉鸡的料重比显著低于T3组(P<0.05).饲喂膨化高粱日粮的肉鸡料重比显著低于制粒组(P0.05).T3和T4组肉鸡赖氨酸表观消化率显著高于T1和T2组(P<0.05),而T1和T3组肉鸡精氨酸表观消化
Soybean cyst nematode (SCN, Heterodera glycines Ichinohe) is one of the most important pests causing considerable damage to soybean (Glycine max (L.) Merr.) around the world. Biocontrol provides a strategy for sustainable nematode control. Previously, Asp
文章旨在评估日粮补充脂肪对哺乳母猪繁殖性能、乳成分和血清生化指标的影响.将平均胎龄为(3.2±0.4)的72头二元母猪(妊娠110 d)随机分为3组,每组4个重复,每个重复6头.对照组饲喂玉米-豆粕型基础日粮,处理组分别饲喂玉米-豆粕型日粮+25.5 g/kg大豆油和小麦-豆粕型日粮+25.5 g/kg大豆油.结果:对照组和玉米组母猪断奶体重、断奶数、断奶窝重、仔猪日增重均显著高于小麦组(P<0.05),但断奶-发情间隔显著小于小麦组(P<0.05).玉米组母猪断奶时背膘厚度显著高于小麦组(P<0.05)
蜂蜜品种鉴别与功能评价的意义和评价程序rn蜂蜜的品质特征及营养功能与蜜源植物、蜂种、产地环境、气候等密切相关,不同品种蜂蜜之间差异显著.明确不同品种蜂蜜,尤其是特色蜂蜜的品质特征和营养功能,有利于解释蜂蜜“知其好,不知其为何好”,也有助于回答特色蜂蜜“特征或功能组分不清”“与其他地区或品种蜂蜜无法区分”等制约其实现“优质优价”的关键问题,实现寻求产品销售亮点、助力企业打造优质特色蜂蜜品牌、扩大产业规模、提高产品公众接受度和附加值的目的.
期刊
为了落实中央一号文件关于打好种业翻身仗部署,农业农村部日前印发《关于开展全国农业种质资源普查的通知》及全国农业种质资源普查总体方案(2021～2023年),决定在全国范围内开展农作物、畜禽、水产种质资源普查.用3年时间全面完成第三次全国农作物种质资源普查与收集行动,实现对全国2323个农业县(市、区)的全覆盖;启动并完成第三次全国畜禽遗传资源普查,实现对全国所有行政村的全覆盖;启动并完成第一次全国水产养殖种质资源普查,实现对全国所有养殖场(户)主要养殖种类的全覆盖.通过此次普查,摸清资源家底,有效收集和保
期刊