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Effect of inter-row spacing and plant population on weed dynamics and maize
Row spacing plant population weed density weed biomass maize yield
2010/2/15
A study was conducted to determine the effects of inter-row spacing (45 and 90 cm) and plant population (40000 and 60000 plants ha-1) on weed biomass and the yield of both green and grain materials of...
Nitrogen Uptake by Cover Crops and Inorganic Nitrogen Dynamics in Andisol Paddy Rice Field
Cover crop Paddy field Nitrogen
2009/12/31
Paddy field rice can conserve N in the soil under flooded conditions. However, residual soil N represents a potential environment concern when fields are no longer flooded. Winter annual grass cover c...
Carbon and Nitrogen Dynamics with Aging in Seminal Root System of Rice Seedling
Aging Carbon Lateral roots Nitrogen Partitioning
2009/7/29
The allocation pattern of carbon (C) and nitrogen (N) with aging among several organs of rice seedling was investigated with particular attention to the difference in seminal root axis (SRA) and conco...
A Quantitative Knowledge-based Model for Designing Suitable Growth Dynamics in Rice
Dry matter Expert system Knowledge-based model LAI Rice Stem number
2009/7/24
Quantifying growth dynamics in rice (Oryza sativa L.) is important for precision design and diagnosis in cultural management. The primary objective of this study was to develop a general knowledge-bas...
Growth and Nutrient Dynamics of Buckwheat (Fagopyrum esculentum Moench) as Influenced by Different Applications of Green Soybean Manure and Bio-decomposer
Green manure growth stages Nutrient elements Relative growth rate Relative uptake rate
2009/7/23
The growth and relative uptake of N. P, K, Ca and Mg of buckwheat was measured following the application of green manure from four growth stages of soybean with and without a bio-decomposer. The relat...
Dynamics of Amyloplast Sedimentation in Growing Yam Tubers and Its Possible Role in Graviperception
Amyloplast Chinese yam Geotropism Gravity Starch Tuber Yam
2009/7/23
The mechanism of gravitropism in yam tubers was investigated using two cultivars of Chinese yam, cv. Nagaimo which elongates to form a long tuber, and cv. Genkotsujirou which elongates in the initial ...
Individual Tiller Dynamics of Two Wild Oryza species in Contrasting Habitats
Assimilates Oryza nivara Oryza rufipogon Tillering
2009/7/23
Individual Tiller Dynamics of Two Wild Oryza species in Contrasting Habitats.
Effects of tillage method, fertilizer, and crop rotation on population dynamics of soybean cyst nematode (Heterodera glicines) and soybean growth
Red clover Crotalaria Shallow tillage Soybean Soybean cyst nematode
2009/7/7
Recently, damages by soybean cyst nematode (SCN) are increasing in Japan, due to continuous cultivation of soybean, and the establishment of the culture method to control SCN is awaited. In this rese...
DYNAMICS OF FRESH WEIGHT, DRY MATTER AND N ACCUMULATION IN PLANTS OF CONVENTIONAL AND SELF-COMPLETING YELLOW LUPIN（Lupinus luteus L.）CULTIVARS
yellow lupin dynamics of fresh weight and dry matter and N accumulation
2009/3/31
A strict field experiment was carried out in 2002-2004 with two yellow lupin cultivars, which were harvested 6 times at the 8-10 leaf phase, at the beginning of budding and flowering, at flat pod, at ...
DYNAMICS OF FIELD WEED INFESTATION DEPENDING ON THE CROP SPECIES AND WEED CONTROL METHOD IN SPRING BARLEY
weeds buckwheat oat spring barley
2009/3/31
The 1999-2000 experiment investigated the field weed infestation, depending on the crop species (spring barley, oat, buckwheat), and weed control methods in spring barley (post-emergence harrowing, Ch...
Carbon Dynamics in Tallgrass Prairie and Wheat Ecosystems
Soil carbon carbon pools mineralizable carbon microbial biomass carbon recalcitrant carbon
2009/1/13
Soil carbon (C) dynamics is an important aspect of the global C cycle. Soils can be a sink or source for atmospheric CO2 depending upon management. Tallgrass prairie and wheat (Triticum aestivum L.) a...
Biodiversity and Dynamics of Planthoppers and Their Natural Enemies in Rice Fields with Different Nitrogen Regimes
Nilaparvata lugens nitrogen fertilizer biodiversity natural enemy rice field biological control
2009/1/7
A field experiment was conducted to study the effect of different nitrogen fertilizer rates i.e. 200, 100 and 0 kg N/ha in paddy fields at International Rice Research Institute, Manila, Philippines. B...
Root growth dynamics in golf greens with different compression intensities and winter survival
annual bluegrass Poa annua L. bentgrass Agrostis stolonifera L. rooting soil structure turfgrasses trampling compression compaction
2007/3/31
The aim of this study was to measure root growth dynamics under Nordic putting green conditions in order to estimate the sensitivity of root growth to winter damages and compression. Root numbers of t...
DYNAMICS OF ABSORPTION OF SOME BIOGENICS SALTS AT TOMATO AND BEAN PLANT CULTIVATED IN SALINE MEDIUM
University of Blida
2005/6/30
The study carried out on the mineral assimilation in saline environment by tomato and bean cultures allowed us to distinguish through the various studied stages, a specific assimilation of the mineral...
DYNAMICS OF ABSORPTION OF SOME BIOGENIC SALTS IN MODIFIED SALINE MEDIUM
measuring sodium potassium magnesium calcium tomato
2004/9/30
The measuring of Ca2+, Mg2+, K+ has been carried out. This quantity determination had two purposes. It allows us, on the one hand, to show that the assimilation rate of the studied mineral elements an...