scholarly journals The effect of a humic preparation on apple seedlings

2021 ◽  
Vol 6 (48) ◽  
pp. 14-14
Author(s):  
Artem Popov ◽  
Vladislav Matyugin ◽  
Elena Polienko ◽  
Olga Bezuglova

Under the conditions of a field experiment the effect of the humic preparation BIO-Don on the growth of apple seedlings of the Vishnevaya variety was studied. The humic preparation was used in the form of a diluted solution in various ways: with irrigation water under the root of the plant, spraying on the leaf, and a combination of application to the soil with foliar treatment. The results have shown that in the first month after treatment, there is a noticeable advance in plant growth in all variants with the humic preparation, however, a statistically significant increase in growth was noted only in the variant with leaf treatment. The greatest increase in the thickness of the trunk was observed in the variant with a combination of the first two methods (application to the soil + foliar treatment). Keywords: HUMIC PREPARATION, APPLE SEEDLINGS, CALCIC CHERNOZEM, NUTRITIONAL ELEMENTS

2019 ◽  
Vol 23 (7) ◽  
pp. 3097-3115 ◽  
Author(s):  
Zhongyi Liu ◽  
Xingwang Wang ◽  
Zailin Huo ◽  
Tammo Siert Steenhuis

Abstract. Rapid population growth is increasing pressure on the world water resources. Agriculture will require crops to be grown with less water. This is especially the case for the closed Yellow River basin, necessitating a better understanding of the fate of irrigation water in the soil. In this paper, we report on a field experiment and develop a physically based model for the shallow groundwater in the Hetao irrigation district in Inner Mongolia, in the arid middle reaches of the Yellow River. Unlike other approaches, this model recognizes that field capacity is reached when the matric potential is equal to the height above the groundwater table and not by a limiting soil conductivity. The field experiment was carried out in 2016 and 2017. Daily moisture contents at five depths in the top 90 cm and groundwater table depths were measured in two fields with a corn crop. The data collected were used for model calibration and validation. The calibration and validation results show that the model-simulated soil moisture and groundwater depth fitted well. The model can be used in areas with shallow groundwater to optimize irrigation water use and minimize tailwater losses.


2019 ◽  
Vol 60 (11) ◽  
pp. 69-74
Author(s):  
Valery N. Zelenkov ◽  
◽  
Vladimir N. Petrichenko ◽  
Anatoly A. Lapin ◽  
Viktor P. Baryshok ◽  
...  

Currently, the expansion of research to find new efficient and environmentally friendly plant growth regulators is an urgent task of agricultural biotechnology. One of the main requirements of the modern development of crop production using technologies for the use of new plant growth regulators is, along with the environmental friendliness of new drugs, both at the application stage for foliar feeding of plants and improving the quality of the final product. One of the new drugs that meet these requirements is a complex preparation of 1-ethoxysilatrane with crezacin. The work shows the high efficiency of the use of the new apple growth regulator in the processing of apple leaves. As a result of the studies, a synergism of the joint action of 1-ethoxysilatrane and crezacin as part of a complex preparation was revealed during foliar treatment of apple leaves of 3-4 phases and the beginning of flowering by spraying the drug in doses of 15 g/ha. The total increase in apple harvest during foliar treatment of tree leaves was 8.1% or 7.0 t/ha compared with the control. An increase in the quality indicators of gardening products was revealed when using the drug 1-ethoxysilatran with krezacin in terms of the content of dry substances, total sugar, vitamin C and pectin in the fruits. The content in the fruits of nitrates during foliar treatment with a new preparation of tree leaves is reduced by 17.9% compared with the control. The content in the fruits of apples of nitrates during foliar treatment with a new preparation of tree leaves decreases by 17.9%, the lead content by 44% compared with the control.


1992 ◽  
Vol 72 (4) ◽  
pp. 1153-1156 ◽  
Author(s):  
K. J. Kirkland

A 3-yr field experiment was conducted at the Scott Experimental Farm to determine the effect of the growth regulator, triapenthenol, on the growth and development of Argentine canola (Brassica napus L.). Triapenthenol reduced plant height 25–45 cm under optimal growing conditions. Increases in yield, branches and total pods were observed. Application at the bud stage was more effective than earlier treatment in the rosette. It was concluded that triapenthenol application to canola could be a useful management tool, particularly under optimal growing conditions.Key words: Canola, growth regulator, RSW-0411, lodging


Author(s):  
Rajpaul Yadav ◽  
Kuldip Kumar ◽  
M. S. Joon ◽  
B. S. Daulta

A field experiment was conducted at Fruit Research Farm of Haryana Agricultural University, Hisar to evaluate the effect of micronutrients and plant growth regulators on fruit cracking and fruit yield in pomegranate cv. Jodhpur Red. The treatments comprising of two micronutrients (H3BO3 and ZnSO4 at 0.20, 0.40, 0.60 %), two growth regulators (2,4-D and NAA at 10, 20, 40 ppm) and water were applied fifteen and thirty days after fruit set. Occurrence of premature fruit cracking was more as compared to mature fruits during both the stages of application. Longitudinal (radial) cracking was more as compared to diagonal (transverse) cracking. 2,4-D and NAA at 10 ppm recorded significantly lower incidence of cracking than all other treatments. Highest fruit yield per acre (50.8 q) was obtained with NAA at 20 ppm when applied fifteen days after fruit set; while 2,4-D at 10 ppm recorded maximum fruit yield when applied thirty days after fruit set.


2013 ◽  
Vol 726-731 ◽  
pp. 3872-3876 ◽  
Author(s):  
Xiao Jun Jin ◽  
Jing Long Fan ◽  
Bo Xu ◽  
Bing Wen Li ◽  
Xin Wen Xu

In order to clarify the influence of saline water irrigation to plant growth and distribution ofsoil water-salt, and providing theoretical basis for sustainable water supply of ecological constructionin desert area, the data of soil water-salt and plant growth was observed at Tarim Desert HighwayShelter-forest Ecological Project No. 17 well. The law of soil water and salt spatial distribution wasanalyzed, and the responses of plant growth to 4 different irrigation amounts were studied by singleelement variance analysis. The results were as follows: the soil water content reaches or is close tosaturation in layer of 100~120cm under the 420mm irrigation water condition; The soil water contentreaches or is close to saturation in layer of 160~180cm under the 233.1mm irrigation water condition;The soil water content reaches or is close to saturation in layer of 180~200cm under the 285.6mm irrigation water condition; The soil water content reaches or is close to saturation in layer of160~180cm under the 201.6mm irrigation water condition. The vertical distribution law of soilssalinity is that the soil salt can enter groundwater after 3 days of irrigation, and be gathered in 0~30cmsoil layer. There were no significant differences except the Tamarix plant height in plant growthindexes among 4 different irrigation quantities treatments.


1965 ◽  
Vol 23 (2) ◽  
pp. 192-202 ◽  
Author(s):  
M. A. Abdel Salam ◽  
S. A. Sabet ◽  
M. A. El Kadi ◽  
A. A. Harga

1994 ◽  
Vol 34 (3) ◽  
pp. 401 ◽  
Author(s):  
RR Gault ◽  
AL Bernardi ◽  
JA Thompson ◽  
JA Andrews ◽  
LW Banks ◽  
...  

Water-run inoculation is a novel means of inoculating crop legumes with species of Rhizobium or Bradyrhizobiunz. Inoculant suspended in irrigation water is delivered into the seedbed. This procedure may be apt for situations when a farmer has limited time to sow a large area and more conventional and timeconsuming means of inoculation may create a bottleneck during sowing. Field experiments with water-run inoculation of irrigated soybeans were conducted at 2 sites using furrow or flood irrigation. With furrow irrigation immediately after sowing, rhizobia-laden water had to infiltrate the soil laterally a distance of about 18 cm to reach the seed sown in single rows on hills (parallel ridges). With flood irrigation before sowing, water needed to percolate vertically only 5 cm to sowing depth. A peat inoculant of B. japonicum remained uniformly in suspension during flow of irrigation water over periods of 45 min and distances of 80 m from the point where the inoculant was introduced. With furrow irrigation on a poorly structured red brown earth, water-run inoculation applied at the normal (commercially recommended) rate did not initiate a satisfactory soybean symbiosis and was inferior to the more conventional methods, seed coat and seedbed inoculation. Rhizobial colonisation of seedling rhizospheres was limited, nodulation was sparse, and low numbers of B. japonicum re-established in the soil after harvest. Symbiosis was improved by higher rates of inoculation and was particularly enhanced in an area where the irrigation water ponded for 3-4 h allowing more time for the rhizobia-laden water to percolate the soil. With flood irrigation on a grey clay, an approximately normal rate of water-run inoculation induced an effective symbiosis especially when compared with lower rates of inoculation. Substantial populations of rhizobia developed in soybean rhizospheres, plant growth and nitrogen (N) content were enhanced, and higher levels of N2 fixation led to increased levels of N in the seed. We conclude that water-run inoculation is not an appropriate means of legume inoculation in furrow-irrigated systems on poorly structured soils but it may be a practical option for inoculation of crop legumes grown under flood irrigation.


2018 ◽  
Vol 5 (2) ◽  
pp. 88
Author(s):  
Muhammad Taufik Iqbal ◽  
Zulvyah Faisal

The purpose of the research is the determinationof Irrigation water requirement based on primer datas collectingand analysis factors of land preparation, plant growth,determination of water loss due to percolation. Irrigation waterrequirement depends from various factors in the preparation ofthe land, plant growth, determination of water loss due topercolation, the determination of the replacement of water andrain layer effectively. The availability of irrigation water iscalculated based on discharge data retrieval on the TaroangSecondary channel. which then processed to obtain the finalresult of the availability of water in the channel. Results of thestudy shown that needs water to irrigate an area of secondarychannels Taroang covering an area of 2,140 Ha as much 39.11m3/s. While the availability of water that goes into the secondarychannel taroang where discharge a minimum of 0.12 m3/s and themaximum discharge of 0.31 m3/s.


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