小型连续进料秸秆黑炭转化装置的设计

在探讨秸秆生物黑炭转化原理及影响因素的基础上,介绍小型连续进料秸秆黑炭转化装置的工作原理、主要结构组成、工作过程及维护保养方法。该装置的设计应用,为合理利用农作物秸秆资源提供了有效途径。     

Effects of Exogenous Materials on Nitrogen Photosynthetic Efficiency and Yield Formation of japonica Rice in Cold Region Under Cold Water Stress at Booting Stage

【Objective】Our goal is to develop disaster-reducing, production-preserving and chemical-controlling cultivation techniques to effectively resist cold damage at the booting stage of japonica rice in cold region.【Method】The split plot design and the central combination test design were used to screen out the optimal application concentrations of CaCl2, glutamic acid(Glu), and γ-aminobutyric acid(GABA) through the membership function values of yield-related indicators under cold-water stress at booting stage.【Result】1) Under cold water stress at the booting stage, the optimal concentrations of exogenous CaCl2, Glu and GABA (CGG) were 1.87 mmol/L, 2.76 mg/L, 4.40 mmol/L, respectively and the average membership function value is the largest (0.932). 2) Compared with normal irrigation, the nitrogen photosynthetic efficiency of cold-region japonica rice decreased under cold stress at the booting stage. Compared with cold water stress at the booting stage, CGG application at the optimal concentration significantly increased the leaf area index (5.37%) and nitrogen photosynthetic efficiency (4.53%) of Dongnong 428 at the full heading stage; significantly increased leaf biomass per leaf area (2.56%) and leaf area index (3.39%) of Songjing 10 at the full heading stage. 3) Compared with cold water stress at the booting stage, the application of the optimal concentration of CGG increased the dry matter accumulation from heading stage to maturity in the cold-region japonica rice, but it was still lower than that of the normal irrigation, and there were differences between varieties and treatments. 4) Compared with cold water stress at booting stage, the yield and yield components of cold-region japonica rice increased with the application of the optimal concentration CGG, and the impact on cold-sensitive varieties was more significant. 5) Compared with the cold water stress at the booting stage, the average increase in temperature production efficiency of Dongnong 428 and Songjing 10 was 5.55% and 23.72% under the optimal concentrations of CGG, respectively. The contribution rate of exogenous CGG to the gap of temperature production efficiency is 8.99%.【Conclusion】The application of the optimal concentration of CGG under cold water stress at the booting stage promoted leaf growth of cold-region japonica rice at the full heading stage and increased the population nitrogen photosynthetic efficiency, which was beneficial to dry matter accumulation and yield formation after heading stage, thereby reducing the loss of cold-region japonica rice under cold water stress at booting stage and improving the temperature production efficiency of cold-region japonica rice.     

施肥对红松容器苗生长的影响

对基质配方为60%草炭土+30%腐殖土的红松容器苗进行了施肥试验,结果表明,对红松容器苗喷洒的营养元素种类不同,苗木的高、径生长量具有明显差异,其中"全喷"和"缺镁"两种处理的苗木高、径生长量最大。说明基质中除镁以外,其他营养元素均需要补充。     

大豆分离蛋白乙酰化功能特性研究

通过实验表明：随着乙酸酐添加量的增加,大豆分离蛋白的改性程度提高,并且溶解性、乳化性及乳化稳定性和起泡性及泡沫稳定性明显提高。     

八五二农场水稻控灌技术对地温的影响

通过在黑龙江省八五二农场试验,在水稻全生育期内采用无水层灌溉制度,利用大区对比法,对土壤温度进行研究,观测不同深度和各生育期稻田土温变化。结果表明,节水控制灌溉比常规灌溉提高地温0.6℃,土壤温度的变化对水稻机体的生长有直接影响,水稻多分蘖10.9%,科学利用有限的水资源,降低生产成本,提高水稻产量,增加经济效益。     

犊牛睾丸支持细胞的分离与冷冻保存

以新生犊牛睾丸为实验对象,应用组合酶法进行支持细胞分离培养,并研究了冷冻保存后支持细胞的生长特性。结果表明:在细胞分离时,消化睾丸组织,分离曲细精管法所获得的细胞悬液中的有效细胞数高于组织剪碎法。支持细胞体外培养,4 h后开始贴壁,3~4 d铺满培养皿底壁,传代后细胞生长较快,2 d即可增殖一代。HE染色,胞质染色较淡,而细胞核染色较深,呈圆形或椭圆形位于细胞质中央或偏位,核仁明显。采用10%FBS+10%DMSO的DMEM液做冷冻液,对细胞进行冷冻保存时,支持细胞的复苏率在65%以上。解冻后的支持细胞体外培养,4h开始有细胞贴壁,24h后大部分细胞贴壁,3~4d铺满培养皿底壁。     

利用Excel 2007规划求解饲料配方表格的设计与使用

根据动物的饲养标准、所用原料的营养成分含量和市场价格,以及饲料配方设计的要求和饲养经验,设计了饲料配制方案的表格,利用Excel 2007提供的规划求解、公式计算等强大功能,不需建立数学模型,将有关的参数添于表格中就可以直接规划求解饲料配方。     

“三生”一体模式的乡村旅游规划——以黑龙江柳河风景名胜区为例

黑龙江柳河风景名胜区依据柳河现有景观资源及实际发展情况,从景观元素设计与景观模式分析出发,通过借鉴欧洲乡村旅游经验,确定柳河农场走"三生"一体的休闲农业园区乡村旅游发展模式。并对休闲农园的建设及该模式的发展特色、经营策略与管理等方面进行分析,推广出农场旅游技术路线,为农场景区的发展提供了思路。同时也为新农村建设中景区发展提供可借鉴的经验和启示。     

红松容器苗造林试验

采用2年生容器苗进行了带状、林下及中孔径下造林试验,结果表明,无论何种方式造林,容器苗造林成活率和高生长量明显高于裸根苗,缓苗率大大低于裸根苗。     

迈腾1.8 TSI轿车自动空调系统故障分析

目前,普通汽车上大约装有10～20只传感器,高级豪华轿车则更多,这些传感器主要分布在发动机控制系统、底盘控制系统和车身控制系统中。大众TSI是一套双增压技术高性能的发动机,在发动机排量不变的情况下,能够吸入越多的氧气分子,再配合燃油喷射系统提供的更多的汽油那么可以输出更高的动力。