Integrated management had better control effects which reached 69.5%~81.5%,especially the integrated management by clearing the disease shoot,root application of B fertilizer and carebendazin had control effect reaching 81.5%.
al. after test,it shows that crystal lime polysulfies is the best,it continues 3 years,the control effect is 88.1%～98.6%,the infective index is 0.54～4.8.70% Dithane M and 20% dust is better,they are 83.9% ～87.6% and 84.6%～87.4%.
Field experiments in Guiyang and Ningxiang counties of Hunan Province showed that in 2005 and 2006,the control efficacy of B-001 on R. solanacarum ranged from 40.03% to 78.14%,better than that of Streptomycini.
In the greenhouse tests, tomato bacterial wilt caused by Ralstonia solanacearum was controlled effectively by the isolates EN5, EN15, EN01 and EN16 with the average control efficacy of 70.82%,89.54%,85.38% and 78.81%, respectively.
The results showed that the relative control efficacy against bamboo aphids on selected shoots with three dilutions was 60.0%, 75.1%, and 80.7% within 7 days after spray, respectively. With the increase of the conidia concentration, the control efficacy was enhanced.
The control experiment of 72.2% propamocarb aqueous solution against cucumber seedling damping-off was carried. The results showed that the control effects were 72.35% to 80.20% at the dosage of 5.0～7.5 g/m2.
After the first application of the 45% Lime sulfur(ESA)at a dilution of 1∶300,control effects in three replicate fields only were 59.64%,42.59%,67.62% respectively; And after the second application of it,the effects were 76.60%,70.94%,81.04%.
From the prosperous beginning stage to the peak age of wheat aphid number, its controlling effect was 93.14% ~ 99.52% .
The results of experiment by way of pot showed that thecontrolling effect on sharp eyespot of wheat reached more than 70% in a month afteremerge of seeding through seed treatment with 2% Raxil WS at the dosage of 0.125%seed weight, while the controlling effect descend to 17% at 70 day after emerge.
More than 200 thousand mu of demonstration fields are grown to these resistant high-yielding hybrids in 1981～1983.Very significant controlling effect (ranging from 92% to 100%, averaging 99%) were obtained and the output of sorghum grain went up enormously.
Four kinds of density were set on every plant. Results indicated that with the concentration of extract increasing,the control effect improved. Expecially the 4 times solution of Meliaazedrach Linn had the best controlling effect,and 1d,2d,3d after spraying,the effect rose to 88.7%,87.9%and 88.7%, respectively.
Flutter control effect and mechanism of central-slotting for long-span bridges
The control effect of central-slotting depends on the aerodynamic configuration of the original girder section and the corresponding central-slotting width.
The control channel is divided into two channels (fast and slow) for enhancing the speed of response at a significant range of the control effect.
Simulation results indicated that the proposed controller exhibits satisfying control effect.
The activities of enzymes responsible for lignification in pepper, pre-inoculation with arbuscular mycorrhizal (AM) fungus ofGlomus intraradices and/or infection with pathogenic strain ofPhytophthora capsici, and the biological control effect ofG.
However, the absence of pronounced control effects of most metabolites on the studied enzymes allows us to assign them to a relatively inert pool of metabolites.
Several different types of porous wall/cavity systems are tested to investigate the passive control effects.
The two logics have been tested under various driving conditions to investigate their control effects.
A model is described that allows one to compensate for the influence of perturbing factors and mutual influence of control effects on neighboring regions.
The wind-control effects of shelterbelts with different structures (close-spaced, wider-spaced, and widest-spaced) were investigated by portable wind vane and anemometer, wet and dry bulb thermometer, ground thermometer, glass service instrument.
The controlling effect of tectonics on evolution of microcracks is analyzed by using the damage mechanics theory.
The results show that the particle size and distribution can be changed by varying the preparation conditions, and the size of the microemulsion droplets has a controlling effect on the size of the particles.
Resuspension of sediment at this station was found to have a controlling effect on the sediment organic carbon content.
Hence, it was chosen for the study of the possible role of a global controlling effect like an attractor.
The controlling effect is defined asC'=-dPCO2/dVA orC=d pHECF/dVA.