Damage to Photosynthesis During Chilling and Freezing, and its Significance to the Photosynthetic Productivity of Field Crops

1990 ◽  
pp. 3629-3636 ◽  
Author(s):  
S. P. Long ◽  
P. K. Farage ◽  
Q. Groome ◽  
J. M. N. Macharia ◽  
N. R. Baker
Keyword(s):  
Field Crops ◽  
Photosynthetic Productivity

The questions of methodology of field experiments in agriculture and crop production

2018 ◽  
Vol 1 (94) ◽  
pp. 38-44
Author(s):  
А.M. Malienkо ◽  
N.E. Borуs ◽  
N.G. Buslaeva
Keyword(s):  
Labor Productivity ◽  
Crop Production ◽  
Field Experiments ◽  
Weather Conditions ◽  
High Accuracy ◽  
Experimental Plot ◽  
Increase Labor Productivity ◽  
Biometric Parameters ◽  
Field Crops ◽  
High Condition

In the article, the results of research on the methodology for conducting studies with corn culture under various methods of sowing and weather conditions. The aim of the research was to establish and evaluate the reliability and high accuracy of the experiment, with a decrease in the area's acreage and taking one plant per repetition. Based on the results of the analysis of biometric parameters and yields, the possibility of sampling from 5 to 108 plants was established statistically and mathematically to establish the accuracy of the experiment. The established parameters of sites in experiments with maize indicate the possibility of obtaining much more information from a smaller unit of area, that is, to increase labor productivity not only with tilled crops. This is the goal of further scientific research with other field crops taking 1 plant of repetitions, observing the conditions of leveling the experimental plot according to the fertility of the soil and sowing seeds with high condition. The data obtained give grounds for continuing research on the minimum space required and the sample in the experiments.

Monitoring of the phytosanitary status of field crops in technological research

2017 ◽  
Vol 1 (92) ◽  
pp. 93-99 ◽  
Author(s):  
M.S. Korneychuk
Keyword(s):  
Technological Research ◽  
Field Crops ◽  
Monitoring Procedure

The articles brought dotsіlnіst monitoring procedure fіtosanіtarnogo become polovih crops tehnologіchnih doslіdah. Place your viyavlennya i Metodi oblіku shkіdnikіv i hvorob. Venue of systematically monіtoringu rozvitku shkіdlivih ob’єktіv dozvolyaє otsіniti zahisnu role priyomіv included in the scheme doslіdu and for perevischennya ekonomіchnogo threshold shkodochinnostі background zastosuvati bіologіchnі chi hіmіchnі zasobi i zberegti doslіd.

USE OF AGRO-RESOURCE POTENTIAL OF GRAY FOREST SOILS OF UPPER VOLGA REGION

2020 ◽  
Keyword(s):  
Forest Soils ◽  
Perennial Grasses ◽  
Organic Fertilizers ◽  
Volga Region ◽  
Winter Rye ◽  
Resource Potential ◽  
Field Crops ◽  
Upper Volga ◽  
Gray Forest Soils ◽  
Winter Cereals

The results of long-term research on the influence of main indicators on their agro-resource potential are summarized on gray forest soils of the upper Volga region. For the conditions of the Vladimir Opolie, the probable yield of biomass and the main products of field crops were calculated at different coefficients ofphotosynthetic active radiation (FAR) use. Calculations of the main product yields are made taking into account the distribution of biomass to by-products and crop-root residues. For field crops of the studied crop rotations, the coefficients of precipitation utilization are estimated. They varied from 44 to 71%, depending on the crop rotation culture. On the slope of the southern exposure when cultivating winter cereals and perennial grasses, the main moisture losses were observed in the spring during snowmelt, when growing spring crops and potatoes, they were close in the autumn and spring periods. The sizes of moisture use by crops depending on the fertilizer systems for the creation of 1 C of grain units (g.u.) and from sub-arable layers are determined. In comparison with the liming background, the use of organic fertilizers reduced the water consumption coefficient from 9.6 to 8.5 mm/C g.u., their combination with a single dose of NPK - up to 7.3, and with a double dose - up to 6.8 mm / C g.u. Based on the amount of moisture used by crops, their possible yields are calculated. In spring crops, the amount of precipitation consumed (326-356 mm) corresponds to the use of 2.7-3% of the FAR and provides 54-60 C/ha of grain, in winter rye and wheat - about 4% of the FAR (yield 71-80 C/ha). In perennial grasses for 2 mowing, the moisture consumed is enough to use about 3% of the FAR., in potatoes -1.5%.

Effect of Ordered Transplanting and Optimized Broadcasting on Super High Yield and Photosynthetic Productivity and Exploration of Rice Super High Yield Model

2013 ◽  
Vol 39 (9) ◽  
pp. 1652 ◽  
Author(s):  
Ke XU ◽  
Bao-Wei GUO ◽  
Hong-Cheng ZHANG ◽  
Xing-Tao ZHOU ◽  
Hou-Cun CHEN ◽  
...  
Keyword(s):  
High Yield ◽  
Yield Model ◽  
Photosynthetic Productivity
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