Koelreuteria paniculata invasiveness, yielding capacity and harvest date influence on biodiesel feedstock properties

The dry matter and moisture contents of the aboveground vegetative organs and kernels of four maize hybrids were studied in Martonvásár at five harvest dates, with four replications per hybrid. The dry matter yield per hectare of the kernels and other plant organs were investigated in order to obtain data on the optimum date of harvest for the purposes of biogas and silage production.It was found that the dry mass of the aboveground vegetative organs, both individually and in total, did not increase after silking. During the last third of the ripening period, however, a significant reduction in the dry matter content was sometimes observed as a function of the length of the vegetation period. The data suggest that, with the exception of extreme weather conditions or an extremely long vegetation period, the maximum dry matter yield could be expected to range from 22–42%, depending on the vegetation period of the variety. The harvest date should be chosen to give a kernel moisture content of above 35% for biogas production and below 35% for silage production. In this phenophase most varieties mature when the stalks are still green, so it is unlikely that transport costs can be reduced by waiting for the vegetative mass to dry.

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The use of microscopic algae of eutrophic waters to maintain soil fertility and to increase the yielding capacity of farm crops

International Journal on Algae ◽

10.1615/interjalgae.v9.i2.30 ◽

2007 ◽

Vol 9 (2) ◽

pp. 126-138

Author(s):

E. V. Patsko ◽

T. V. Parshikova ◽

L. A. Sirenko

Keyword(s):

Soil Fertility ◽

Yielding Capacity

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The use of microscopic algae to maintain soil fertility and to increase the yielding capacity of farm crops

International Journal on Algae ◽

10.1615/interjalgae.v8.i2.60 ◽

2006 ◽

Vol 8 (2) ◽

pp. 187-199

Author(s):

L. A. Sirenko ◽

T. V. Parshikova ◽

E. V. Patsko

Keyword(s):

Soil Fertility ◽

Yielding Capacity

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Productivity of sugar beets depending on the method of main soil tillage and levels of fertilization

Interdepartmental thematic scientific collection "Agriculture" ◽

10.31073/zem.94.21-26 ◽

2018 ◽

Vol 1 (94) ◽

pp. 21-26

Author(s):

M. L. Tyrus

Keyword(s):

Sugar Content ◽

Climatic Conditions ◽

Soil Tillage ◽

Soil Protection ◽

Forest Steppe ◽

Sugar Beets ◽

Yielding Capacity ◽

Root Crops ◽

Favorable Weather ◽

Fertilization Level

Soil tillage and fertilization level are important in the system of agro-technical measures that increase soil fertility and sugar beets productivity. Today the cultivation of this crop requires a great deal of expense, therefore, there is a need for a wider study of the use of cheap soil cultivation, soil protection, energy-saving soil tillage technologies and appropriate ferti-lization levels. Under western Forest-Steppe of Ukraine conditions, investigations were conducted on dark grey podzolic light loamy soils where the influence of tillage models and fertilization levels on the formation of sugar beets root crops was studied. Shallow no-plow tillage of the soil on 14-16 cm is expedient to use as a main tillage under sugar beets. Under favorable weather and climatic conditions, it can provide yielding capacity at the level of deep fall plowing. The use of shallow no-plow tillage helped to increase the yielding capacity of sugar beet roots relative to plowing by 28-30 cm for 1.3 t / ha and the biological sugar output – for 0.2 t / ha. Then the sugar content was by 0.1% higher in the application of deep fall plowing on 28-30 cm. The optimization of the system of sugar beets fertilization allows ensuring the growth of the yielding capacity of root crops. It is established that the application of fertilizer norm N300P225K350 provides the yielding capacity at the level of 90 t / ha. The sugar content of root crops at the given fertilizer rate was the lowest in the experiment - 16.5 – 16.6%. Thanks to the high yielding capacity of root crops in terms of N300P225K350, the sugar harvesting was the highest and depending on the method of basic soil tillage was 14.95 – 14.79 t / ha. That is in 3.2 times more as to the control, in 1.3 times more than the norm of N180P135K210 and in 1.1 more than the fertilization level N240P180K280.

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