The results indicated that amounts of CO 2 released from soil in a year were 5.799 kg5m -2 in maize field, 4.176 kg5m -2 in citrus garden, 3.388 kg5m -2 in paddy field and 3.119 kg5m -2 in Chinese fir forest respectively.
Advance on Nitrogen-fixing Green Blue algae of Rice Paddy Field
It was prepared about the inventory of CH, emissions from rice paddy in Jiangsu-Zhejiang-Shanghai District in 1990 following the convetions set in IPCC Guidelines (1995). The inventory data were further analyzed and evaluated.
In order to overcome the abuse of chemical pesticide weed in rice paddy,a systematic ecperiment is carried out on weeds populations dynamics in rice-duck intergrowth fields of middle rice and late rice.
Off-line experiments have been conducted with IAP94 land surface model on different surface types (cropland, forest and paddy field) in different seasons (spring, summer and autumn) over the Huaihe River basin.
Pronounced concentration-dissipation law of total function score value occurs in paddy field units, with three ranges, i.e., 79～68.5, 68.5～59 and 59～51.
Paddy field quality is divided into three gradations, and the scales are 18 220.9 ha, 5410.6 ha and 2890.9 ha.
A 21-day laboratory incubation experiment was conducted to investigate the impact of pesticides (insecticide, herbicide, fungicide) on paddy field soil health under controlled moisture (flooded soil) and temperature (25°C) environment.
N2O emission from paddy field under different rice planting modes
In the rice field methane is produced in the soil layer with depths of 2-25 cm.
The degradation of pencycuron in waterlogged tropic rice field was investigated.
To determine oogenesis in first-generation females (summer females) and its relations to temperature, females were collected from a rice field in early and mid-July and reared on young rice plants at 28, 31 and 34°C in the laboratory.
Carp of about 150 mm body length were released in small plots set in a rice field in southern Japan at 0, 0.2, or 0.6 carp/m2.
In the present study, we examined the role of leucine-enkephalin on moulting and vitellogenesis of the fresh water rice field crab, Oziotelphusa senex senex.
Comparison of manual and automatic methods for measurement of methane emission from rice paddy fields
Nitrous oxide (N2O) emission from flooded rice paddy fields was continuously measured by the closed chamber method at an experimental plot in Thailand for a whole cultivation period.
K.deyrolli nymphs and the predator Laccotrephes japonensis (Nepidae: Heteroptera) adults coexist in rice paddy fields.
Research institutes from various prefectures in Japan supplied 211 isolates (group I) from their collections, and 84 isolates (group II) were isolated from rice paddy fields in Iwaki, Fukushima Prefecture.
Thus, it appears that inconspicuous restraint of rice seedling growth could occur in soils of rice paddy fields.