钾细菌制剂在油菜种植中的应用研究

在油菜移栽时用钾细菌制剂7.5 kg·hm-2沾秧根,可促进油菜苗期的旺盛生长,有利安全越冬,翌春返青起身快,提早开花,增加一次枝梗数和长度,与对照相比,千粒质量增加0.18 g,产量增加20.27 %。     

米糠日粮添加酶制剂对雏鹅代谢激素和生化指标的影响

7日龄雏鹅32只，随机分成对照组和试验组，饲以米糠（占30％）基因日粮，试验组添加0.2%的酶制剂。试验期为7－21日龄。21日龄时采取血样，测定其激素含量和生化指标。结果显示，（1）与对照相比较，酶制剂使雏鹅血液胰岛素水平升高40．82％（P＜0．01），血糖水平升高4．76％（P＞0．05），胰高血糖素水平降低31．18％（P＜0．01），胰岛素与胰高血糖素的比值升高104．18％（P＜0．01）；（2）血浆谷丙转氨酶活性较对照升高38．39％（P＜0．05），尿酸浓度下降10．60％（P＜0．05）；（3）血浆T3水平较对照升高24．42％（P＜0．05），促甲状腺激素水平下降8．85％（P＞0．05）。以上结果表明，酶制剂通过解除饲料中阿拉伯木聚糖等的抗营养作用，能影响机体代谢激素水平，改变糖和蛋白质的代谢，从而促进雏鹅的生长。     

多功能大豆膳食纤维的应用

开发和利用多功能大豆膳食纤维,促进了膳食纤维食品的迅速发展。介绍了膳食纤维功能、生产工艺和在面包、饼干、面条等食品中的应用。     

A Simple Device to Prepare Single Ears of Spelt (Triticum spelta L.) for Seeding with the "Seedmatic-System"

Spelt is usually planted as spikelets. These cannot be obtained by the threshing machines generally used for bread wheat. With a simple device it is possible to separate single ears of spelt into spikelets ready for sowing. At the same time, it is possible to score the fragility of the rachis and the degree of free thresh-ability, both important characteristics for the selection of spelt.     

壳聚糖的生产与应用

近年来,壳聚糖及其衍生物的开发应用受到国内外的重视,越来越多的产品从实验室走向市场。介绍了壳聚糖及其衍生物的制备方法及其在工业、农业、医药、环保、生物学等领域的应用。     

复合微生物制剂对温室重茬草莓生长及品质的影响

于日光温室条件下,研究了复合微生物制剂和活性有机肥对重茬草莓植株生长及品质的影响。结果表明,复合微生物制剂和活性有机肥对草莓黄萎病均具有较好的防效,可提高草莓叶片的叶绿素含量、光合速率和根系活力,促进草莓植株的生长,使物候期提前,产量显著提高。并可提高草莓果实维生素C和可溶性糖的含量,降低可滴定酸含量,改善了果实品质和风味。     

钾细菌制剂在花生上的应用研究

在种植花生时采用7．5kg／hm2作拌种肥处理，与增施KCl效果相似，可促进花生生长，增加花生有效根瘤、单株结荚数、百果重和出仁率，最终比对照增产l7．93％，每公顷投入产出比达1：40．8，具有明显的经济和生态效益。     

Effects of liming on chemical properties of soil, needle nutrients and growth of Scots pine transplants

The effects of limestone (2.0 and 4.0 Mg ha⁻¹) on chemical properties of soil, nutrient concentrations of needles and growth of Scots pine (Pinus sylvestris L.) transplants were investigated on three reforestation areas on infertile acidic sites in southern Finland. The limestone was applied either on the soil surface (unploughed plots) or was mixed into the topsoil (ploughed plots). All the treatments were replicated four times. Surface broadcast of lime elevated the pH in the organic layer and in the 0-10 cm layer of mineral soil. The increase in the pH of the organic layer after 21 years was, on average, 0.7 and 1.1 pH units, with a dose of lime 2 and 4 Mg ha⁻¹, respectively. On the ploughed plots, the pH in the uppermost 0-10 cm soil layer was 0.4-0.5 units higher than on the corresponding unlimed plots. Both doses of lime significantly increased the amount of exchangeable Ca and the base saturation (BS) in the topsoil on the ploughed plots, and the amount of exchangeable Ca and Mg, as well as the base saturation (BS) in the organic layer + the 0-10 cm layer of mineral soil on the unploughed plots. Regardless of the techniques used for application of lime, after 21 growing seasons the Ca and Mg concentrations in needles were significantly higher on the limed plots than on the controls. In needles, the Ca/Mn ratio was the best indicator for measuring the response to liming. Only on the unploughed plots did liming increase stand volume and dominant diameter of pines. Intensive disc ploughing produced significantly more stems and increased both stand volume and the dominant height of pines compared to unploughed plots.     

微胶囊技术在生物领域中的应用及研究进展

随着生物技术的发展,微胶囊技术在生物领域有了新的研究进展。阐述了微胶囊技术在生物领域的进展,包括微胶囊化生物细胞的制备、微生物微胶囊的制备、超临界流体微胶囊化技术包埋酶和蛋白质以及微胶囊化生物活性物质。     

微生物制剂促进鸡粪堆肥腐熟和臭味控制的研究

鸡粪中添加微生物制剂ＥＭ，堆制２０ｄ堆肥腐熟，较传统堆制法腐熟进程明显加快，堆制９ｄ后堆肥散发出酿酒的芳香。ＮＨ４＋－Ｎ含量下降４１．９４％～５６．７４％，除臭效果显著。ＥＭ能显著提高堆肥中有机质和氮素的保留率，减少氮的气态损失。ＥＭ的除臭功能与其促进堆肥中大分子有机物转化为小分子芳香有机物和ＮＨ４＋－Ｎ向其他形态氮的转化有关。