The article used the field experiment by basal fertilizer and return green fertilizer,Applying biological silicon fertilizer for six levels: 0kg/hm2、150 kg/hm2、300 kg/hm2、450 kg/hm2、600 kg/hm2、750 kg/hm2,studied the effect of applying different biological silicon fertilizer to physiological index in albic soil.
Field experiment results indicated that application of Australia microbiological fertilizer SC27 with doses of 6 L or 12 L per hm2 in soil could increase yields of watermelon and balsam pear by 4- 46% -8. 34% and 7- 30% -12.14% respectively (1.52 - 1-84 and 1.45 - 2-41 tons per hm2respectively).
According to the field experiment, the formule of 3∶1∶4 and 3∶1∶2 are optimum, which increase the yields of early and late rice by 13.3%, 10.6% and 10.4%, 9.8% respectively compared with that of the cotrol.
The results obtained from field experiment showed similarly, i.e. the average K absorption in N treatments(N, NP and NPK) (5.71 kg/667 nf) was enhance by 46.40% compared to that without N treatments (P , K and CK) (3.90kg/667 m2) .
Results obtained in field experiment indicated that application of 3.0 and 6.0 L·hm -2 of microbiological fertilizer SC27 in vegetable soil increased yields of cucumber, tomato and pepper by 1.5-6.7 t·hm -2 , i.e. 4.17% to 14.63%.
Three varieties(combination)of grain and sugar sorghum,Tx623x×022,Tx623×2421 and hybrid sweet sorghum No. 2,were used to conduct field test in northern Anhui.
The field test result showed that using sodium polymer by hole method at 15 kg/hm 2, the yields of corn and potato were increased by 22% and 16%, and the ratios of investment to benefit were 1∶3.5 and 1∶4.2, respectively.
The result of field test when inoculated with races 19 and 21 of P.strii-formis showed the cultivars NB 61975, NB 66523 and STW 597944 were immune and NB 61977 and II-l 19966-4R-SM-1R were highly resistant to stripe rust.
The field test indicates after 7 days 0.2% Emamectin Benzoate 800 times was the best,and its control effect was 68.96%,while 90% methomyl 2500 times was 60.09%.
The result of the field trial indicated that 5%fipronil SC at 60ml/667m2 was effective against Laodelphax striatellus at rice earing stage, the control effect was 97.16% after 19 days,very obviously higher than that of 10% imidacloprid WP at 60 g/667m2,and the persistent period was more than 20 days.
The results of field trial showed that intensified culture could enhance the yield of single cropping japonica rice by 5.55%~8.62% as compared with traditional culture.
The result of field trial showed that pendimethalin 33%EC had good and fast effect for controlling the weed in pennuut field. The effect of control was over 95% at the dosage of 150 ～ 250 mL/667m2 after 45d,the fresh weight Control was over 96%.
The result of field trial showed that25%Dingjune EC had good effect for controlling the Gray mold disease of tomato. The effect of control was over79%at the dosage53.3～106.7mL/667m 2 after three sprays.
According results of field experiments,N 448.5,P-2O-5 52.5 kg/hm~2,K-2O 180～270 kg/hm~2 and N-P-2O-5～K-2O 1∶0.12∶0.40～0.60 was optimum balance fertilization scheme,and organic complex fertilizers with inorganic fertilizer used were recommend for rareripe taro to obtain high yield and profit.
The field experiments and reseach for four generations for three years indicated that the sexual reproduction seeds of rice C1001B and that of C1001A could produce a certain frequency of polyembryonic seedlings.
Based on field experiments, dynamic changes of leaf area, specific leaf area (SLA) and dry leaf ratio are described and quantified. After wintertime, specific leaf area decreases linearly with logarithmic relative development stage (RDS) and SLA = - 21.07 × In( RDS) + 19. 427. The maximum and minimum specific leaf area is 40 m2/kg and 19 m2/kg, respectively.
Field experiments were conducted in 2002.The results shown that the inorganic N (NO3--N and NH4+-N) in 0 - 20 cm top layer of soil in GCRPS treatments was a little lower than that of paddy control treatment, in 20 - 40 cm layer of soil a little higher, in 40 - 60 cm layer no difference.
A field experiment in oil-polluted sod-podzol and clay sand soils demonstrated that this preparation accelerated the biodegradation of oil and its individual fractions, especially in the presence of mineral and organic fertilizers.
Results of a 2004 field experiment aimed at determining the quadratic nonlinearity parameter in granite that forms the shore of the Ladoga lake are presented.
First, a detailed multi-body dynamic model of the vehicle is established by using the ADAMS/View software package, which is followed by validation using a vehicle field test.
The behavior of mice of two inbred strains (C57BL/6J and CBA) and their F1 hybrids was evaluated in the open field test after intraperitoneal administration of 3-methylindole (skatole) disrupting epithelium of the main olfactory system.
The results of processing the field test data obtained for the seismoacoustic system designed at the Institute of Applied Physics of the Russian Academy of Sciences for the visualization of underground engineering structures are presented.
Therefore our field trial demonstrated that it was effective and feasible to reduce Pb availability in soil and cabbage contaminated by mining tailings using P fertilizers in China and PR would be a most cost-effective amendment.
Two experimental trial sows received daily 30 ml lactulose, 71 field trial sows received daily 45 ml lactulose during their periparturient period (10 days before until 10 days after parturison).
In this paper, a general review is made on the problems of vibrations of the ground and nearby buildings induced by railway traffic, and on the researches on this subject in theoretical analyses, numerical simulations, and field experiments.
The dynamics of introduced antagonistic bacteria in the spring wheat rhizosphere was studied in small-plot field experiments during several growing seasons.
田间试验
field experiment
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