) carrot establishment, quality, and yield; 2) weed density and composition; and 3) gross and net returns. The experimental plots were arranged in a split-split plot design with tillage as the main plot factor, compost as the subplot factor, and carrot
Seed piece spacing is an important economic consideration in the production of potatoes (Solanum tuberosum L.). The optimum spacing varies with cultivar and intended market. A study was designed to determine the influence of seed piece spacing on yield, tuber size distribution, net returns, and stem and tuber density of three processing potato cultivars. Seed tubers of cultivars Russet Burbank, Frontier Russet, and Ranger Russet were planted 8, 15, 23, 31, 46, 61, 76, or 91 cm apart at two locations in 1988 and 1989. Total, marketable (U.S. No. 1), and midsize (226–452 g tubers) yield, tuber size distribution, net profits from a representative processing contract, and stem and tuber density (number per meters of row) were determined. All three cultivars achieved highest total yields at the narrowest (8 cm) spacing. Maximum marketable and midsize (226–452 g) yield occurred between 15 and 31 cm, depending on the cultivar. Size distribution shifted from a predominance of small tubers at narrow spacings to a predominance of large tubers at wide spacings, and the rate of shift was cultivar-dependent. `Russet Burbank' showed a broad range of optimal spacing for net returns, with a maximum in the range of 23 to 46 cm. Optima for `Frontier Russet' and `Ranger Russet' were between 15 and 46 cm. Of the four tuber measurements, midsize yield appeared to be best for determining optimum spacing. Marketable yield was also a useful measurement. All three cultivars gave maximum midsize yields at a stem density of 10.5 to 12.1 per meter of row and a tuber density of 23.9 to 24.9 per meter of row. Tuber density showed some promise as a predictor of optimum seed piece spacing for new cultivars.
prices on the local retail market (average $1.50/lb). Conservative estimation, therefore, indicated that for an average yield of 7942 lb/acre in 2004, net returns of $499/acre above the specified costs could be obtained from vegetable soybean production
group participants did not account for unforeseen production failures. Since crop loss should be anticipated periodically, sensitivity analyses were conducted on potential net returns from crop production (per square foot of total production area) given
revenue and highest costs. CTNO was the highest performing system with the lowest costs and highest revenues, with net revenue above partial costs $257/acre higher than STNO. The economic performance of CTCC was very similar to the net returns of STCC that
effective pest control, and had yield effects comparable to methyl bromide:chloropicrin. Regarding economic viability, the authors concluded that net returns from treatments of solarization or steam were lower than those from the methyl bromide
high tunnel system resulted in positive net returns, the addition of low tunnels within the high tunnel led to a positive increase in net returns for one cultivar, and the additional supplemental heating increased net returns by up to 50% for both
carrot yield variability and for marketing risks linked to carrot sales and nitrogen fertilizer prices. Carrot net returns (R) were estimated on a per-hectare basis as the difference between total revenues and costs using the following equation: R ( N
average tomato price from 2018 to 2020 was used to account for recent fluctuations in tomato prices. Results and discussion Net returns Net returns (dollar value per acre) for all treatment combinations are reported in Table 3 . The
), respectively. Net cash costs of production are greatly impacted by production system, yield, and price obtained for fruit. Organic production systems for blueberry vary among growers and regions. Although estimated net returns are greater for organic production