scholarly journals THE INFLUENCE OF LEGUMINOUS PLANTS AS PRECEDENTS ON PRODUCTIVITY AND QUALITY OF POTATOES

2020 ◽  
Vol 15 (1) ◽  
pp. 48-51
Author(s):  
Marina Yakovleva ◽  
Vladislav Dimitriev ◽  
Georgiy Mefod'ev

The purpose of the study is to study the possibility of using leguminous crops for grain as potato precursors. Field experiments were carried out in 2017–2019 in Krasnoarmeyskiy district of the Chuvash Republic. The soil of the experimental plot is gray forest, heavy loam granulometric composition with a humus content in the arable layer of 3.9%, mobile phosphorus - 140 and exchange potassium - 160 mg/kg of soil, pH - 5.1 units. Narrow leaf lupine, soybeans and fodder beans for grain were used as potato precursors; control was employed steam (vetch barley mixture for green fodder). Potato planting was carried out on May 10. The repetition of the experiment is 3 times, the size of the plots is 1.5 per 10 m, an area of 15 m2. The planting scheme of potatoes is 70 by 30 cm with embedment of tubers to a depth of 6 ... 8 cm. In the experiment, an early ripe variety Udacha was grown. Before planting, the tubers were treated with the insecto-fungicide Emesto Quantum (0.32 l/t). Plant care included pre-emergence and two post-emergence row-spacings cultivation, hilling, and weeding. The best precursors for potatoes are narrow-leaved lupins and soybeans. In these cases, there is a significant increase in tuber yield by 31.2 and 30.8%, dry matter - by 6.7 and 9.2%, and starch - by 4.3 and 5.5%, respectively.

Plant Disease ◽  
1997 ◽  
Vol 81 (5) ◽  
pp. 469-474 ◽  
Author(s):  
A. Gamliel ◽  
A. Grinstein ◽  
Y. Peretz ◽  
L. Klein ◽  
A. Nachmias ◽  
...  

The use of gas-impermeable films to reduce the dosage of methyl bromide (MB) required to control Verticillium wilt in potatoes was examined in field experiments, conducted in soils naturally infested with Verticillium dahliae. The incidence and severity of Verticillium wilt were significantly reduced (by 74 to 94%) by fumigation with MB at 50 g/m2 under standard low density polyethylene (LDPE) or at 25 g/m2 under gas-impermeable films. Fumigation at 25 g/m2 under LDPE was less effective. Disease severity was inversely correlated (r2 = 0.89 to 0.91) with chlorophyll content in the leaves. Fumigation also reduced (by 89 to 100%) stem colonization by the pathogen. Potato yield in the fumigated plots was significantly higher (26 to 69%), than in their nonfumigated counterparts, and was inversely correlated with disease index (r2 = 0.69 to 0.9). The percentage of high-value tubers (above 45 g) was 52 to 56% of total yield in the fumigated plots as compared with 32 to 40% in the nonfumigated controls. Thus, fumigation also improved the commercial quality of tuber yield. Effective control of V. dahliae and yield increases following MB fumigation at the recommended dosage or at a reduced dosage with gas-impermeable films was also observed in a consecutive crop. These results were verified in a large-scale field experiment using commercial applications, further demonstrating the feasibility of reducing MB dosages under farm conditions, without reducing its effectiveness in terms of disease control and yield improvement.


1980 ◽  
Vol 95 (2) ◽  
pp. 471-485 ◽  
Author(s):  
D. J. Greenwood ◽  
T. J. Cleaver ◽  
Mary K. Turner ◽  
J. Hunt ◽  
K. B. Niendorf ◽  
...  

SUMMARYThe effect of level of N fertilizer on the composition, yield and quality of 21 crops was studied in experiments on adjacent sites of the same field to aid in the development of fertilizer recommendations.Yield of each of the crops first increased and then either remained the same or declined with further increases of N fertilizer. Interpretation by means of a simple model enabled response curves to be characterized by two parameters; one representing the beneficial component of the response and the other the detrimental component. Both varied greatly from crop to crop.The magnitude of the beneficial component of the response of most non-leguminous crops was largely determined by the potential demand of the crop for nitrogen; the exceptions were some root crops which responded less than would be expected on this basis. The adverse component was serious with root crops and those crops that are in the soil for only a short period. High levels of N increased the ratio of foliage to storage root dry weights even when total dry matter was unaffected. The changes were associated with a considerable increase in the % N in the dry matter of the roots.When crops were grown with their optimum levels of N fertilizer a simple linear. relationship between the mean %N in the dry matter and the total weight of dry matter per unit area covered all crops. Simple relationships also existed between total dry matter of non-leguminous crops and (a) the amount of N taken up by the crop from unfertilized soil, (b) the recovery of added fertilizer by the crop and (c) the beneficial component of the response of crops harvested before October.Percentage N in the dry matter at harvest was not a sensitive indicator of the extent to which plant growth was restricted by lack of nitrogen; a difference of 0·1% N in the plant material was associated with a 10% increase in yield.N fertilizer levels influenced the % dry matter and the incidence of crop disorders such as rotten roots and tissue discoloration, but the effects were seldom appreciable with practicable levels of fertilizer application.


Author(s):  
N. I. Kulmakova ◽  
L. B. Leontiev

It is well known that the growth rate of an animal depends on the level of feeding. However, the diets used in farms do not always meet the body’s needs for biologically active substances. In recent years numerous studies have been conducted to study the eff ect of natural and synthetic complex biologically active drugs on the productivity, metabolism of pigs and the quality of the products obtained. The imbalance or lack of certain nutrients in the diet reduces the productivity of animals, reduces the conversion of feed. The purpose of our research was to study the effect of the drug Permaite included in the diet of pigs on some indicators of the quality and safety of pork. Permaite is a standardized zeolite-containing trepel of the Chuvash Republic. Its chemical composition is (%): silicon oxide – 64,39, iron oxide – 3,25. aluminum oxide – 8,42, titanium oxide – 0,45, calcium oxide – 7,74, calcium carbonate – 14,7, magnesium oxide – 1,71, potassium oxide – 1,81, sodium oxide – 0,03, phosphorus pentoxide – 0,20 and other impurities – 11,9. Experimental studies have been conducted on 2 groups of pigs on rearing and subsequent fattening. Pigs of the experimental group have been received the main diet with the inclusion of the drug Permaite at a dose of 3 % to the dry matter of the main diet in the form of a fraction of 0,1–0,3 mm. The drug has been prescribed once a day in a mixture with compound feed for 60 days. The control group of pigs during this period was on farm diet without the inclusion of the drug. Upon reaching the live weight of 100–110 kg the pigs have been sent for slaughter. The results of the research allow us to conclude that the inclusion of the drug Permaite in the dose of 3 % to the dry matter of the main diet provides the increase in the nutritional, biological, energy value, technological properties and safety of pork.


Author(s):  
H. K. Patel ◽  
P. H. Rathod ◽  
D. R. Padheriya

A field experiment was conducted at Main Forage Research Station, Anand Agricultural University, Anand during rabi-2019-20 to study the effect of nitrogen levels on yield and quality of multi cut oat cultivars with aim to find out nitrogen levels on green fodder yield and quality of oat. There were total four varieties (V1: OL 1874, V2: JO-05-304, V3: UPO 212 and V4: RO 19) and four levels of nitrogen (N1: 35 kg N/ha, N2: 70 kg N/ha, N3: 105 kg N/ha and N4: 140 kg N/ha) was tested. Experiment was laid out in split plot design with three replications. Experiments results revealed that significantly the highest green fodder yield was reported in RO 19 (V4) treatment, while average plant height and average number of tiller per meter row length were reported in V1: OL 1874 and V2: JO 05-304 treatment, respectively. Average plant height, Green fodder yield, average dry matter, average crude protein, total crude protein yield and dry matter yield were found highest by application of 140 kg N/ha. Average tiller per meter row length was higher in N4 (140 kg N/ha) and average dry matter was higher in N1 (35 kg N/ha). Response of nitrogen non-significant in case of average ADF and NDF content.


10.12737/2423 ◽  
2014 ◽  
Vol 8 (4) ◽  
pp. 143-145 ◽  
Author(s):  
Табаков ◽  
Aleksey Tabakov ◽  
Шашкаров ◽  
Leonid Shashkarov ◽  
Самаркина ◽  
...  

The article presents the results of field experiments on the effect of preplant soil techniques in combination with different doses of fertilizers and pesticides in the cultivation of potato of Impala variety on productivity in the Chuvash Republic, which is located in the south-eastern part of the Volga-Vyatka region. The positive impact of the studied factors on yield and quality of potato tubers was revealed.


1989 ◽  
Vol 113 (1) ◽  
pp. 109-114 ◽  
Author(s):  
P. I. Orphanos ◽  
C. Metochis

SUMMARYTopping of tobacco (Nicotiana tabacum L.) plants (removal of the inflorescence) is not practised in Cyprus. Two field experiments were carried out at Akhelia Station, in 1985 and 1986, to test whether topping increased the yield or improved leaf quality of flue-cured tobacco grown under different types of irrigation. In contrast to the results of other studies, topping when the corolla had appeared on half the flowers did not increase yield. Topping when the inflorescence was just clear of the leaves (21 leaves harvested from topped plants v. 32 leaves from untopped plants) increased fresh yield by 7·0% but dry matter yield by 18·0%. The effects of topping were more marked on the leaves reaped at the third and fourth harvests, which constituted 52% of the fresh yield or 60% of the dry matter yield. At these harvests, leaves from topped plants had a lower percentage of midrib material (18·5 v. 21·0%) than leaves from untopped plants but a higher dry matter content (19·2 v. 17·2%) and specific leaf weight (80·0 v. 56·0 g/m2). Leaves of the fourth harvest from topped plants (27% of the total fresh yield) contained appreciably more nicotine (1·34%) than leaves from untopped plants (0·40%) but had a similar content of reducing sugars (20%). Topping did not influence the N, P and K contents of the leaves.Irrigation increased fresh yield from 12·0 t/ha (225 mm water) to 24·0 t/ha (450 mm water) and dry matter yield from 2·0 to 3·8 t/ha, respectively, in Expt 1.As Cypriot tobacco growers are paid for fresh yield delivered to the curing plant, the marginal increase of fresh yield with topping will hardly cover the cost of the extra operations involved.


Author(s):  
M. Waliur Rahman ◽  
Saiful Islam ◽  
M. Monirul Islam ◽  
M. Sazzad Hossain

A field experiment was carried out at Breeder seed Production Centre (BSPC), Debiganj, Panchagarh during the Rabi season of 2016-2017 to study the effect of five levels of sulphur application on yield and quality attributes of three potato varieties. The main objective of the experiment was to determine the effect of sulphur on the yield and quality of potato varieties. There were five treatments comprising different levels of sulphur such as T1 (control-no sulphur), T2 (75% RDS), T3 (100% RDS), T4 (125% RDS) and T5 (150% RDS). Three BARI released potato variety; BARI Alu 36 (4.26 R), BARI Alu 40 (4.45W) and BARI Alu 25 (Asterix) were used in this experiment. The experiment was laid out in a randomized complete block design (RCBD) with three replications. The tuber yield and yield contributing characters were significantly influenced by the application of sulphur. Maximum tuber yield (39.28 t/ha) was recorded in BARI Alu 40 (4.45 w). Highest dry matter content, specific gravity and starch content were found in BARI Alu 40 (4.45 w), which was followed by BARI Alu 36 (4.26 R) in case of specific gravity and starch content. Sulphur application in potato varieties showed significant influence on tuber yield of potato. This parameter increased with increasing dose of sulphur up to 100% RDS. Thereafter, further increase in sulphur did not showed any remarkable influence. Besides, sulphur application in potato varieties showed significant influence on tuber quality of potato. The maximum dry matter yield and starch yield were recorded in the treatment T3, which was followed by all other  treatments except T1. The minimum dry matter yield and starch yield were recorded in the treatment T1. Combined effect showed insignificant influences between varieties and sulphur levels. BARI Alu 40 (4.45 w) was found superior over other varieties in terms of yield and quality attributes. Treatment T3 (100% RDS) was found superior over other treatments in terms of yield. 


2018 ◽  
Vol 13 (4) ◽  
pp. 103-108 ◽  
Author(s):  
Фарит Шайхутдинов ◽  
Farit Shaykhutdinov ◽  
Игорь Сержанов ◽  
Igor Serzhanov ◽  
Равиль Ибятов ◽  
...  

This article presents the results of three summer (2016-2018) studies to determine the response of individual agrotechnological methods to the harvest and grain quality of spelled wheat in a gray forest soil of Kama zone of the Republic of Tatarstan. In 2016-2018 field studies were conducted on the experimental field of the agronomic faculty of Kazan State Agrarian University. The soil is gray forest medium loamy with the following indicators: humus content (according to Tyurin) - 2.9-3.2%, the amount of absorbed bases - 27 mg.eq. per 100 g of soil, easily hydrolyzed nitrogen - 79.0 - 110 (according to Corinfield) , mobile phosphorus - 105-184, exchangeable potassium (according to Kirsanov) - 79-149 mg. per 1000 g of soil, Ph-salt - 5.6-5.7. The object of research is emmer (polba) of the variety Srednevolzhskaya. Conducted observations, counts and analyzes during the growing season 2016, 2017 and 2018, it is showed that food backgrounds and predecessors had no effect on the timing of emergence of shoots. The duration of the emergence of wheat shoots of the dwarf (spelled) was determined by the conditions of thermal and water regimes of air and soil. With more optimal and stable thermal conditions with sufficient moisture supply during the years of research, seedlings appeared in 13-15 days on both food backgrounds and all predecessors, in the second period - 12 days and the latest date - 10-11 days. On the basis of the research conducted, it was established that the best one as a predecessor for all sowing dates and nutritional backgrounds for wheat spelled is a one-year clover and a vico-oat mixture for green fodder.


2020 ◽  
pp. 23-25
Author(s):  
Н.М. Куклина ◽  
Д.Г. Гвазава

В работе представлены исследования эффективности выращивания сортов картофеля разных сроков созревания в Костромской области. Опыт проводили в 2017-2019 годах на опытном поле научного севооборота ФГБНУ «Костромской НИИСХ». Использовали десять сортов картофеля отечественной селекции разных сроков созревания. Были взяты следующие сорта: группа ранних и среднеранних – Метеор, Башкирский, Красавчик и Варяг, группа среднеспелых и среднепоздних – Вымпел, Фаворит, Великан, Колобок, Накра и Никулинский. Цель исследований: найти лучшие перспективные сорта для Костромской области. Площадь делянки в опыте – 8,4 м2, повторность – трехкратная, расположение сортов – систематическое, количество рядов каждого сорта – 2 шт., длина рядов – 6,0 м. Схема посадки 70×30 см, посадка – вручную в нарезанные гребни. На участке под опытом дерново-подзолистая, легкосуглинистая, слабокислая почва. Содержание гумуса – 2,53-2,95%, подвижного фосфора и обменного калия – 660 и 184 мг/кг почвы соответственно. Агротехника выращивания общепринятая для Костромской области. Внесено комплексное минеральное удобрение в дозе N26P38K38. Трехлетние исследования по выращиванию десяти сортов картофеля отечественной селекции разных групп спелости показали, что в условиях Костромской области средняя урожайность варьировала от 21,3 до 39,3 т/га. Товарность в среднем составила от 50,3 до 90,8%. По результатам исследований выявлены наиболее устойчивые к вирусным болезням сорта. Определены сорта картофеля, наиболее устойчивые к фитофторозу и альтернариозу. Также выявлены сорта с наибольшим количеством сухого вещества и крахмала. По итогам исследований экономически выгодными для выращивания в регионе оказались сорта Накра и Никулинский. За счет высокого выхода товарной продукции при выращивании сортов картофеля Накра и Никулинский обеспечивается рентабельность производства на уровне 15-26%. Эти сорта могут быть рекомендованы производителям картофеля Костромской области. Investigations on the efficiency of growing of potato kinds of different ripeness time for the conditions of Kostroma Region are presented in the work. The experiment was carried out in 2017-2019 on the experimental field of scientific crop rotation of the FSBSI Kostroma Scientific Research Institute of Agriculture. Ten potato kinds of Russian selection of different ripeness time were used in the investigations. Such kinds as the early and middle-early group – Meteor, Bashkirskiy, Krasavchik and Viking – as well as the group of the average-ripe and moderately late – Vimpel, Favorite, Velikan, Kolobok, Nakra and Nikulinskiy – were taken. The purpose of the investigations is to find the best promising kinds for Kostroma Region. Plot area in the experiment is 8.4 m2, repetition, three times; arrangement of potato kinds, systematic; number of rows of each kind is two; length of rows is 6.0 m. Scheme of planting 70×30 cm, planting potatoes manually in chopped ridges. The soil on the plot under experiment is sod-podzolic, light-loam, slightly acidic. Humus content is 2.53-2.95%, mobile phosphorus and exchangeable potassium, 660 and 184 mg/kg of soil, respectively. Agriculture is generally accepted for Kostroma Region. Complex mineral fertiliser is introduced at dose N26P38K38. Three-year investigations into the cultivation of ten potato kinds of Russian selection of different ripeness groups showed that in the conditions of Kostroma Region, the average crop yield ranged from 21.3 to 39.3 tonnes per hectare. Marketability ranged from 50.3% to 90.8% on average. The kinds most resistant to viral phytopathology are identified by the results of investigations. The potato kinds most resistant to phytofluorosis and alternariosis are defined. The kinds with the highest amount of dry matter and starch are identified as well. The kinds Nakra and Nikulinskiy appeared to be economically profitable for cultivation in the region in the investigations. Thanks to the high output of commercial products, when growing potato kinds Nakra and Nikulinskiy, production profitability is provided at the level of 15-26%. These kinds are to be recommended to potato producers in Kostroma Region.


2011 ◽  
Vol 51 (No. 5) ◽  
pp. 226-231 ◽  
Author(s):  
R. Jabłońska-Ceglarek ◽  
W. Wadas

In this six-year research study the effect of nonwoven polypropylene covering on the quantity and quality of early potato yield was estimated. The use of nonwoven polypropylene covers resulted in an increase in the tuber yield and smaller yield variability in the various years, when compared with the traditional cultivation, especially at a very early date of potato harvest. In the cultivation with nonwoven polypropylene covering, the marketable tuber yield 60 days after planting was higher by 23.34% on average and 75 days after planting by 10.92% in the six-year period of the study, compared with the cultivation with no plant covering. The higher profitable effect of covering was obtained in the years with cold spring. The cultivation method of the potato did not affect the chemical composition of the tubers harvested after 60 days from planting. After 75 days from planting the tubers of potato cultivated under nonwoven polypropylene covers contained, on average, more dry matter and starch by 0.81% and 0.85%, respectively.


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