Economic Analysis of Sugarcane Variety Selection, Crop Yield Patterns, and Ratoon Crop Plow Out Decisions

jpa ◽  
1997 ◽  
Vol 10 (4) ◽  
pp. 539-545 ◽  
Author(s):  
M. E. Salassi ◽  
S. B. Milligan
Keyword(s):  
Economic Analysis ◽  
Crop Yield ◽  
Sugarcane Variety ◽  
Ratoon Crop ◽  
Variety Selection

Crop management: principles and practices.

2021 ◽  
pp. 89-123
Author(s):  
Dennis B. Egli
Keyword(s):  
Crop Yield ◽  
Management Practices ◽  
Seed Quality ◽  
Production Systems ◽  
Crop Management ◽  
Planting Date ◽  
Growth And Yield ◽  
Management Options ◽  
Physiological Processes ◽  
Variety Selection

Abstract This chapter discusses planting-seed quality, variety selection, plant population, planting date and row spacing. The goal of crop management is to create the perfect environment for the growth of the crop, where the perfect environment is characterized by the absence of stress or other factors that reduce crop growth and yield. This goal may be impossible or uneconomical to achieve, but that does not detract from its usefulness as a goal. The management practices discussed in this chapter are fundamental components of grain production systems that contribute to reaching the goal of the perfect environment. There are many management options available to an individual producer; selecting the best combination is not always easy and it may be constrained by factors outside the realm of the physiological processes controlling crop yield.

scholarly journals Simulation of Soil Water-Crop Yield Systems: The Potential for Economic Analysis

1975 ◽  
Vol 7 (1) ◽  
pp. 47-53 ◽  
Author(s):  
Harry P. Mapp ◽  
Vernon R. Eidman
Keyword(s):  
Economic Analysis ◽  
Systems Theory ◽  
Soil Water ◽  
Crop Yield ◽  
Biological Processes ◽  
Model Experiments ◽  
Economic Applications ◽  
Biological Phenomena ◽  
Satisfactory Approximation

Economists have shown an increasing interest in systems theory and simulation. The recent reviews by Anderson and LaDue and Vincent indicate the literature is repleat with models of business and farm firms developed by researchers from several disciplines. A smaller but no less sophisticated group of models is focused on simulated physical or biological processes. An even smaller segment of the literature deals with economic applications of models which simulate physical and biological phenomena.Economists have become interested in models simulating physical and biological phenomena because of their experimental value. When a satisfactory approximation of reality can be created within the context of the model, experiments can then be conducted to determine the effects of changes in exogeneous factors on outcomes predicted by the model.

Gibberellin Applied to the Rice Main Crop Increases Ratoon-Crop Yield

2007 ◽  
Vol 6 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Elliott W. Rounds ◽  
Abdul R. Mohammed ◽  
Lee Tarpley
Keyword(s):  
Crop Yield ◽  
Ratoon Crop ◽  
Main Crop

scholarly journals Agronomic performance of sugarcane cultivated under quantities of sugarcane straw on the soil surface

2016 ◽  
Vol 37 (6) ◽  
pp. 3983 ◽  
Author(s):  
Mariana Alves de Oliveira ◽  
Claudemir Zucareli ◽  
Carmen Silvia Vieira Janeiro Neves ◽  
Allan Ricardo Domingues ◽  
Cristiane De Conti Medina ◽  
...  
Keyword(s):  
Crop Yield ◽  
Polynomial Regression ◽  
Soil Surface ◽  
First Year ◽  
Agronomic Performance ◽  
Sugarcane Variety ◽  
Crop Establishment ◽  
Sugarcane Straw ◽  
Second Year ◽  
Plot Design

Mechanized harvesting is increasingly present in the sugarcane production system. The straw removed during harvest can be converted to ethanol or used to generate electricity by burning, it is important to determine the amount of biomass that may be removed without damage to the crop. We evaluated the agronomic performance of sugarcane, variety RB92579, grown under different quantities of sugarcane straw on the soil surface, in the first and second year of cane crop. We used the experimental randomized block in split plot design, with four replications. In the first year the plots received five quantities of straw (0, 4.5, 9.0, 13.5 and 18 Mg ha-1), and six times assessments (60, 120, 180, 240, 300, 360 days after planting) arranged in the subplots. In the second year, the plots received the same quantities of straw and four times assessments (60, 120, 240 and 540 days after the regrowth) in subplots. Biometric indexes, components of production and crop yield were evaluated. The data were submitted to variance analysis and study of polynomial regression (p <0.05). Increasing quantities of sugarcane straw deposited on the soil surface reduces the number and diameter of the stem at the beginning crop establishment, and number of sheets for the first year. The maximum productivity of stems is achieved by maintaining 9,6 Mg ha-1 of straw for first year and 4,7 Mg ha-1 of straw for second year of cane crop.

Rice Ratoon Crop Yield Linked to Main Crop Stem Carbohydrates

Crop Science ◽  
1993 ◽  
Vol 33 (1) ◽  
pp. 150-153 ◽  
Author(s):  
Fred T. Turner ◽  
Michael F. Fund
Keyword(s):  
Crop Yield ◽  
Ratoon Crop ◽  
Main Crop

scholarly journals Effects of nitrogen management on the ratoon crop yield and head rice yield in South USA

2021 ◽  
Vol 20 (6) ◽  
pp. 1457-1464 ◽  
Author(s):  
Yue-chao WANG ◽  
Xiu-fen LI ◽  
TARPLEY Lee ◽  
Shao-bing PENG ◽  
Fu-gen DOU
Keyword(s):  
Crop Yield ◽  
Rice Yield ◽  
Nitrogen Management ◽  
Ratoon Crop ◽  
Head Rice ◽  
Head Rice Yield

Rice Crop Response to Simulated Drift of Imazamox

2016 ◽  
Vol 30 (1) ◽  
pp. 99-105 ◽  
Author(s):  
Eric P. Webster ◽  
Justin B. Hensley ◽  
David C. Blouin ◽  
Dustin L. Harrell ◽  
Jason A. Bond
Keyword(s):  
Plant Height ◽  
Crop Yield ◽  
Field Studies ◽  
Growth Stages ◽  
Ratoon Crop ◽  
Physiological Maturity ◽  
Yield Increase ◽  
Spray Volume ◽  
The One ◽  
Herbicide Drift

Field studies were conducted near Crowley, LA, to evaluate the effects of simulated herbicide drift on ‘Cocodrie' rice. Each treatment was made with the spray volume varying proportionally to herbicide dosage based on a spray volume of 234 L ha−1and an imazamox rate of 44 g ai ha−1. The 6.3%, 2.7-g ha−1, herbicide rate was applied at a spray volume of 15 L ha−1and the 12.5%, 5.5-g ha−1, herbicide rate was applied at a spray volume of 29 L ha−1. Rice was treated at the one-tiller, panicle differentiation, boot, and physiological maturity growth stages. Injury was observed with imazamox applied at the one-tiller timing. Injury was not observed until 21 and 28 d after treatment (DAT) when imazamox was applied at the panicle differentiation and boot timings. The greatest reduction in plant height resulted from applications at the one-tiller timing at 7 and 14 DAT; however, when evaluated at harvest, plant height was reduced no more than 10%. Imazamox, averaged over rate, applied to rice at the boot timing reduced primary crop yield 66% compared with the nontreated. Applications at the boot timing resulted in an increased ratoon crop yield; however, the yield increase did not compensate for the loss in the primary crop yield.

Impact of Drift Rates of Imazethapyr and Low Carrier Volume on Non-Clearfield Rice

2012 ◽  
Vol 26 (2) ◽  
pp. 236-242 ◽  
Author(s):  
Justin B. Hensley ◽  
Eric P. Webster ◽  
David C. Blouin ◽  
Dustin L. Harrell ◽  
Jason A. Bond
Keyword(s):  
Plant Height ◽  
Crop Yield ◽  
Field Studies ◽  
Ratoon Crop ◽  
Clearfield Rice ◽  
Spray Volume ◽  
The One ◽  
Carrier Volume ◽  
Herbicide Drift ◽  
Crop Maturity

Field studies were conducted near Crowley, LA, in 2005 through 2007 to evaluate the effects of simulated herbicide drift on ‘Cocodrie’ rice. Each application was made with the spray volume varying proportionally to herbicide dosage based on a constant spray volume of 234 L ha−1and an imazethapyr rate of 70 g ai ha−1. The 6.3%, 4.4 g ha−1, herbicide rate was applied at a spray volume of 15 L ha−1and the 12.5%, 8.7 g ha−1, herbicide rate was applied at a spray volume of 29 L ha−1. An application of imazethapyr at one-tiller, panicle differentiation (PD), and boot resulted in increased crop injury compared with the nontreated rice. The most injury observed occurred on rice treated at the one-tiller timing. Imazethapyr at one-tiller, PD, and boot reduced plant height at harvest and primary and total (primary plus ratoon) crop yield, with the greatest reduction in primary crop yield resulting from imazethapyr applied at boot. Imazethapyr did not affect rice treated at primary crop maturity.

scholarly journals Effect of mosaic on the yield of sugarcane variety b. 34-104.

1969 ◽  
Vol 37 (1) ◽  
pp. 13-18
Author(s):  
P. González ◽  
J. Adsuar
Keyword(s):  
Puerto Rico ◽  
Controlled Experiment ◽  
Sugarcane Variety ◽  
Agricultural Experiment Station ◽  
Ratoon Crop ◽  
Infected Seed ◽  
Staff Members ◽  
Experiment Station ◽  
Agricultural Experiment ◽  
The Common

Many farmers in Puerto Rico believe that the sugarcane variety B. 34104, although susceptible to mosaic, can produce more sugar than the current known commercial varieties, and that this variety recovers from the disease. Preliminary investigations by technical staff members of the Agricultural Experiment Station did not confirm this. A controlled experiment was carried out and the following conclusions were drawn: 1. Once the canes of variety B. 34-104 are infected with the common sugarcane mosaic prevailing in the Island they do not recover from the disease, and infected seed produces diseased plants. 2. There was a reduction of 29 percent in tonnage production in the plant cane crop and of 32 percent in the first ratoon crop attributable to the disease. 3. There was a difference of 26.7 percent in the production of 96° sugar per acre in the plant cane crop and of 41.7 percent in the first ratoon crop between the healthy and infected canes. 4. If B. 34-104 could be maintained free from mosaic it would produce about the same quantity of sugar as P.O.J. 2878, but a greater tonnage would have to be handled and processed, and profits would be lower.

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