scholarly journals Physiological and Ecological Characteristics, and Control of The Perennial Weed Torpedograss (Panicum repens L.) in Crop Field and Turf in Ryukyu Islands, Japan

2005 ◽  
Vol 50 (2) ◽  
pp. 96-105
Author(s):  
Md. Amzad Hossain
Keyword(s):  
Ryukyu Islands ◽  
Perennial Weed ◽  
Ecological Characteristics ◽  
Crop Field ◽  
Panicum Repens ◽  
And Control

scholarly journals Studies on the Ecology and Control of Perennial Weed, Scirpus in Paddy Field

1978 ◽  
Vol 23 (1) ◽  
pp. 19-23 ◽  
Author(s):  
Norimitsu ISHIKURA ◽  
Yoshio SOGA
Keyword(s):  
Paddy Field ◽  
Perennial Weed ◽  
And Control

scholarly journals Role of Mineral and Bio-fertilizers on Some Soil Properties and Rice Productivity under Reclaimed Saline Soils

2019 ◽  
pp. 1-12
Author(s):  
Mohamed I. Mohaseb ◽  
Mona H. M. Kenawy ◽  
Khaled A. H. Shaban
Keyword(s):  
Soil Properties ◽  
Agricultural Research ◽  
Nutrient Content ◽  
Mineral Fertilizers ◽  
Research Station ◽  
Available N ◽  
Rice Productivity ◽  
Rice Plants ◽  
Crop Field ◽  
And Control

A field experiment (randomized complete blocks with three replicates) was conducted during two successive summer seasons of 2016 and 2017 at Sahl El-Houssinia Agriculture Research Station in El-Shakia Governorate, Egypt. Its lies between 32˚00/00 to 32˚15/00/ N latitude and 30˚50 / 00// to 31˚15 00// E longitude. The combined effect of bio-fertilizers inoculated with Rhizobium radiobacter sp strain (salt tolerant PGPR); Bacillus megatherium (dissolving phosphate) and Bacillus circulans (enhancing potassium availability) and yeast strains (Saccharomyces cerevisiae) combined with different rates of N, P and K fertilizers (50, 75 and 100%) was evaluated on some soil properties, nutrient content in rice plants, and rice productivity in a reclaimed saline soil. From the crop field of the Agricultural Research Institute (ARC), Egypt, 101 grain kernels from rice (Oryza sativa) var. Sakha were selected.   The results indicated that soil pH and EC were decreased in soil treated with bio-fertilizers combined with different rates of mineral fertilizers in comparison with soil treated with yeast and control. Available N, P, K, Fe, Mn and Zn in the soil increased with the use of bio-fertilizers. Application of mineral fertilizers (N, P and K) alone or combined with bio-fertilizers (bacteria and yeast) resulted in increased yield grains and straw of rice plant. Macro- and micronutrients concentrations and uptake in grain and straw of rice plants increased in soil treated with bacteria + 75% N+P+K fertilizers compared with other treatments.                          

Biology and control of Reseda lutea L. 1. Seed biology and seedling growth

1997 ◽  
Vol 48 (4) ◽  
pp. 511 ◽  
Author(s):  
J. W. Heap
Keyword(s):  
Seedling Growth ◽  
Control Strategies ◽  
Germination Rate ◽  
South Australia ◽  
Effective Control ◽  
Temperate Climate ◽  
Perennial Weed ◽  
Seed Biology ◽  
Early Seedling ◽  
And Control

Reseda lutea L. is a major perennial weed of alkaline cropping soils in South Australia. Seed biology and early seedling growth of R. lutea were studied in field and laboratory experiments to gain information needed for effective control strategies. Recovery of intact seeds buried for 4 years in the field at 50 and 150 mm was 77–96%. Germination of this seed was 33–63% (50 mm) and 0% (150 mm). Germination patterns differed markedly between seed collected from 2 populations. Seed germinated at all constant and fluctuating temperatures between 10 and 35° C with the maximum (88%) at 25°C constant. Mean temperature, rather than constancy or fluctuation, determined the germination rate. Light strongly inhibited germination. Seedling shoot growth was slow but tap root growth was rapid, reaching 350 mm within 28 days of emergence. Secondary roots arose 3–7 days after emergence and shoot buds formed on the roots within 28 days. R. lutea was found to be well adapted for persistence in cultivated fields with a temperate climate.

scholarly journals Ecological Characteristics and Control of Gambel Oak

1983 ◽  
Vol 36 (3) ◽  
pp. 363 ◽  
Author(s):  
D. M. Engle ◽  
C. D. Bonham ◽  
L. E. Bartel
Keyword(s):  
Ecological Characteristics ◽  
And Control ◽  
Gambel Oak

scholarly journals Study on Ecology and Control of Rumex obtusifolius, a Perennial Weed in Grassland

1971 ◽  
Vol 1971 (12) ◽  
pp. 40-45
Author(s):  
Hiroshi SAKAI ◽  
Tokuo SATO ◽  
Katsumi FUJIWARA ◽  
Yutaka SHIMADA
Keyword(s):  
Perennial Weed ◽  
Rumex Obtusifolius ◽  
And Control

scholarly journals Studies on Ecology and Control of Oxalis martiana ZUCC, a Perennial Weed on Upland Fields

1963 ◽  
Vol 1963 (2) ◽  
pp. 55-59
Author(s):  
Takayoshi KATAOKA ◽  
Masao ARAI ◽  
Michinori SHIOBARA
Keyword(s):  
Perennial Weed ◽  
And Control
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