November 2011
New data about Hésperis pýcnotricha in Romania
There are presented new data about Hésperis pýcnotricha in Romania. In 2004, the species was first identified in Gura Motrului Locality in Romania. Since then, the species has been pursued and so far, we have come up with new data on its origin and chronology. To our joy, the plant (ornamentally planted) has been identified in the same locality in a backyard adjacent to the first...
November 2011
Composting certain agricultural residues to potting soils
Four agricultural residues, namely, sheath of peanut pods, flax shivers, red sawdust, and white sawdust were composted with different amendments for four months under greenhouse and field conditions. Results emphasized that composting proceeded at different rates and was principally influenced by the type of residues and/or added amendments. Initial bio-fortification of residues with cellulose decomposing microorganisms...
November 2011
Effect of polyethylene mulching on the spatial variability of soil physical properties and growth parameters of taro (Colocasia esculantum)
The objective of this study was to investigate the spatial variability of soil physical properties and growth of taro (Colocasia esculantum) in an unfertilized 42 m ridge covered with black plastic mulch. The study was conducted at the National Agriculture Research Centre Tsukuba (Japan). The experimental field was made of 3 adjacent ridges of 42 m long and 0.90 m width each. Uniform taro corms were planted in the...
November 2011
Effect of root zone salinity on mineral nutrition and growth of beri (Zizyphus mauritiana lam) and jaman (Eugenia jambolana lamk)
Excess of salts in the root zone of plants adversely affects their growth. It may result in loss of stands, reduced rates of plant growth, reduced yields and in severe cases, total crop failure. Salinity limits water uptake by plants by reducing the osmotic potential and thus the total potential of the soil water, additionally certain salts may be specifically toxic to plants or may upset nutritional balance, if they...
November 2011
Production efficiency of yam in Zing Local Government Area of Taraba State, Nigeria
The research was carried out to analyze the efficiency of yam production in Zing Local Government Area of Taraba State. Data were collected from 103 respondents using multistage sampling techniques, and analyzed by means of descriptive statistics, multiple regression and profitability analysis. Findings indicated that 95% of the respondents were males, 38.8% fall within 31 to 40years of age. 84.4% were married and about...
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