Under plastic film mulching condition,Olsen-P in 0—40 cm soils,except 0—20 cm soil with single organic fertilizer application,were not statistically significantly decreased.
Through the operation test and economic analysis to the system, the results show that the death rate of the ascarid’s egg ≥95% and the number of the coliform ≤105/kg, and the treated feces was environmental friendly. The granular organic fertilizer has total nutrient content ≥5.0%, organic content ≥35% and moisture content ≤20%,and its every item is superior to the standard NY525-2002 of China.
This result suggested that in the earlier restoration stage the application of organic fertilizer may be more effective by surface addition to soils than deep addition.
A two-year trial was conducted to test the interactive effects of special-for-apple organic fertilizer, CaSO4, and amino acid Ca on Fuji/Balenghaitang (Malus robusta Rehd.) rootstock in Burozem soil in China.
The size and activity of the chemolithotrophic bacterial community were studied in an integrated farming system, with increased inputs of organic manure and reduced inputs of mineral nitrogenous fertilizer, versus conventional farming.
The effects of fertilization with N, P, K, and organic manure (alone or in combination) on earthworm populations, biomass, and casting activity were measured in a cultivated soil (organic C 1.5%, annual rainfall 2000-2300 mm).
Two pure cultures of obligate methanotrophs, strains H-11 and O-12, growing in the temperature range from 30 to 61°C with a optimum at 55°C were isolated from samples of silage and manure.
Aqueous and organic solvent extracts tested by agar-well diffusion method against 12 human pathogenic bacteria and 3 fungal strains showed activity to most of the organisms.
These studies demonstrate that using organic solvent and water mixtures is an effective way to control the multilayer construction by adjusting the media properties.
Organic materials of D-π-A type MR-X (MR-1: p-dimethylaminophenylethenetrica-rbonitrile and MR-2: p-diphenylaminophenylethene tricarbonitrile) were designed and synthesized.