Search Results
Abstract
Growers must know their production costs to be competitive and profitable. A microcomputer program has been developed to calculate these costs based on various production inputs involved in growing crops. The user enters costs for land, buildings, equipment, general overhead expenses, and cultural practices. The program produces cost summaries for capital requirements, annual fixed costs, variable cost per hour of equipment, estimated costs of production, and final price per plant. With this information, growers can compare their prices against those of competitors to determine if the crop will be profitable.
Abstract
The saturated medium extract (SME) method of container media testing for pH, electrical conductivity (EC), and nutrient levels is generally considered the best procedure for research and routine analysis (1, 5-8). However, various soil : water ratio methods (e.g., 1:1.5, 1:2, 1:5) are widely used (1, 2), partly because they do not require a vacuum extraction, as does the SME method. The use of so many different methods creates considerable confusion (5). Vacuum extraction of saturated media is traditionally performed with a porcelain Buchner funnel ($26 for 9-cm size) and a side-arm, glass vacuum flask ($13 for 500ml size) (2, 6). Less-expensive, unbreakable polypropylene Buchner funnels and vacuum flasks are available. However, they have several disadvantages: they easily tip over when the Buchner funnel contains saturated media, are difficult to dry quickly if several samples need to be run in succession with only one vacuum flask, and only are available through scientific instead of horticultural suppliers.
44 POSTER SESSION 7 (Abstr. 381–397) Extension/Technology Transfer/Public Education Monday, 24 July, 1:00–2:00 p.m.
140 ORAL SESSION 39 (Abstr. 651–655) Computer Technology Applications in Extension Horticulture
146 POSTER SESSION 19 (Abstr. 147-160) Extension/Technology Transfer Saturday, 31 July, 1:00-2:00 p.m.
146 POSTER SESSION 19 (Abstr. 147-160) Extension/Technology Transfer Saturday, 31 July, 1:00-2:00 p.m.
44 POSTER SESSION 7 (Abstr. 381–397) Extension/Technology Transfer/Public Education Monday, 24 July, 1:00–2:00 p.m.
74 ORAL SESSION 14 (Abstr. 520–527) Cross-commodity/No commodity: Human Issues/Extension/Technology Transfer Tuesday, 25 July, 8:00–10:00 a.m
Abstract
The Gambia is a small country on the West African coast, located along the Gambia River and surrounded on three sides by Senegal. The climate is a bimodal rainfall (800-1400 mm precipitation yearly) type with distinct dry (October-May) and wet (June-September) seasons. Mean monthly air temperatures range from a minimum of 14.5°C to a maximum of 41° (15).
Abstract
The % of dormant bulbs from onion (Allium cepa L.) plants treated 2 weeks before harvest with maleic hydrazide (MH) and (2,chloroethyl)phosphonic acid (ethephon) remained uniformly high from November through May, as compared with bulbs from plants treated with succinic acid-2,2-dimethylhydrazide, ethyl hydrogen 1-propyl phosphonate (EHPP), and control bulbs, most of which were no longer dormant by March. Similarly treated lots stored at 3°C showed no striking prolongation of bulb dormancy although the number of marketable bulbs was greatly increased. It was possible to obtain uniform, low water permeability constants from nongrowing bulbs treated with maleic hydrazide or ethephon through June.