scholarly journals Effect Study of Continuous Monoculture on the Quality of Salvia miltiorrhiza Bge Roots

2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Hongyan Liu ◽  
Min Niu ◽  
Shu Zhu ◽  
Fang Zhang ◽  
Qian Liu ◽  
...  
Keyword(s):  
High Efficiency ◽  
Salvia Miltiorrhiza ◽  
Effect Study ◽  
Economic Losses ◽  
Continuous Cropping ◽  
Crude Drug ◽  
Yield And Quality ◽  
Field Soils ◽  
Continuous Monoculture

High-efficiency monoculture severely inhibits the growth of Salvia miltiorrhiza Bge and decreases the yield and quality of crude drug, thus resulting in serious economic losses in China. Here, we selected four replanted field soils with 1, 2, 3, and 4 years of monoculture history to investigate the influence of continuous monocropping soil on the property of medicinal materials by pot experiments. Results showed that the commodity appearance and active ingredient contents of Salvia miltiorrhiza were significantly affected by soil with different continuous monocropping years. Along the time series of plantation soil, the diameter of main roots, weight of fresh roots, and total contents of hydrophilic and lipophilic components demonstrated a decline tendency. With the method of PCA, the property of medicinal materials affected by continuous monocropping soil was evaluated by the following formula: F=0.3762×F1+0.2320×F2+0.1913×F3+0.0994×F4/0.8989. Eventually, crude drug properties ranked according to comprehensive scores were as follows: CK 0.380>1 year 0.360>2 years 0.348>3 years 0.337>4 years 0.245. For the medicinal plant of Salvia miltiorrhiza Bge, continuous monocropping soil had significant effects on the property of Salvia miltiorrhiza and should be ameliorated by some measures. The results provide support for the optimal continuous cropping year selection and continuous cropping obstacle abatement of Salvia miltiorrhiza Bge.

scholarly journals Influence of agrotechnical receptions and fertility soils on the yield of the Monsoon variety in the conditions of the Primorsky Territory

2020 ◽  
Author(s):  
Р.В. ТИМОШИНОВ ◽  
Л.Е. БАБИНЕЦ ◽  
Е.Ж. КУШАЕВА ◽  
А.А. ДУБКОВ ◽  
А.Г. КЛЫКОВ
Keyword(s):  
High Efficiency ◽  
Maximum Yield ◽  
Mineral Fertilizers ◽  
Row Crops ◽  
Seed Rate ◽  
Yield And Quality ◽  
Soybean Plants ◽  
Fertilizer System ◽  
Germinating Seeds

Представлены результаты исследований реакции растений сои сорта Муссон на изменение норм высева, способа посева и влияния различных систем удобрений на урожайность и качество семян в условиях Приморского края. Для получения максимальной урожайности сои сорта Муссон рекомендуется проводить рядовой посев на 15 см с нормой высева 500–600 тыс. или широкорядный посев на 30 см с нормой высева 550–650 тыс. всхожих семян на 1 га. Показана высокая эффективность комплексной системы удобрений с одинарной дозой минеральных удобрений (Н40 + И4,5 + 1NPK). The article presents the results of studies on the reaction of soybean plants of the Monsoon variety to changes in seeding rates, method of sowing, the influence of various fertilizer systems on the yield and quality of soybean seeds in the Primorsky Territory. It has been established that in order to obtain maximum yield, the soybean Monsoon variety is recommended to be sown with row crops of 15 cm with a seed rate of 500–600 thousand germinating seeds per 1 ha, with a wide-row method of sowing of 30 cm with a seed rate of 550–650 thousand germinating seeds on 1 ha. Of the applied in crop rotation, high efficiency of integrated fertilizer system with a single dose of mineral fertilizers (manure 40 + lime 4.5 + 1NPK) is shown.

scholarly journals Productivity of grain corn in the lower don after application of mineral fertilizers and bacterial preparations

2019 ◽  
pp. 11-17
Author(s):  
Roman Aleksandrovich Kamenev ◽  
Alisa Aleksandrovna Sevostyanova ◽  
Natalya Nikolaevna Gusakova ◽  
Lyudmila Aleksandrovna Gudova
Keyword(s):  
High Efficiency ◽  
Mineral Fertilizer ◽  
Ordinary Chernozem ◽  
Mineral Fertilizers ◽  
Nitrogen Fixing ◽  
Combined Application ◽  
Yield And Quality ◽  
Phosphorus Fertilizers ◽  
Nitrogen Phosphorus

The results of  a three-year field experiment to study the effect of mineral fertilizers and biopreparations with active strains of associative nitrogen-fixing microorganisms on the yield and quality of corn on the ordinary chernozem of the Lower Don are presented. The application of a combination of mineral fertilizers in a dose of N60P40K40 ensured high efficiency. The increase in grain yield compared to the control option was 1.85 t / ha, or 61.3%. The increase in yield after a bacterial preparation application with a strain of associative nitrogen-fixing microorganisms 2P-7 without mineral fertilizers was 40.1%,  after application of the biopreparation 2P-9 with nitrogen-phosphorus fertilizers in a dose of N30P40 - 55.3%. The greatest effect in protein harvesting was after application of N60P40K40 - 81.6%, after application of 2P-7 and 2P-9 - 51.9 and 55.6%, respectively. After their combined application with  nitrogen-phosphorus fertilizers it increased by  20.9 and 22.2%. The level of profitability varied from 17% after application of full mineral fertilizer to 69% under the influence of biological products of associative nitrogen-fixing microorganisms.

Effect of Boric acid, Potassium nitrate and Magnesium sulphate on Managing Fruit Cracking and Improving Fruit Yield and Quality of Pomegranate

2019 ◽  
pp. 49-53
Author(s):  
Muhammad Azhar Bashir ◽  
Ammara Noreen ◽  
Muhammad Ikhlaq ◽  
Kashif Shabir ◽  
Faheem Altaf ◽  
...  
Keyword(s):  
Boric Acid ◽  
Magnesium Sulphate ◽  
Foliar Spray ◽  
Potassium Nitrate ◽  
Fruit Yield ◽  
Soluble Solids ◽  
Economic Losses ◽  
Yield And Quality ◽  
Fruit Cracking

Pomegranate is a drought tolerant fruit crop and is well adapted to sub-tropical and tropical climates. Fruit cracking is a major disorder in pomegranate which causes significant economic losses. In the present work, effect of foliar application of boric acid (0.05%), potassium nitrate (1.0%) and magnesium sulphate (1.0%) alone or in combinations was investigated to manage fruit cracking and improve fruit yield and quality of pomegranate cv. Golden. First treatment (foliar spray) was applied one month after fruit setting (April) and repeated twice during May and June each year. Application of foliar sprays affected fruit yield and quality positively. The maximum number of fruits per plant (254), average fruit weight (192 g), yield per plant (58.3 kg), number of arils per fruit (592), juice content (41.1%) as well as the minimum fruit cracking (3.9%) were recorded when 0.05% boric acid, 1% potassium nitrate and 1% magnesium sulphate were applied in combination. Fruit size and total soluble solids (TSS) of fruit juice were not affected by the applied treatments. Thus, combined application of boric acid, potassium nitrate and magnesium sulphate could be recommended for reducing fruit cracking and improving yield and quality of pomegranate fruits under semi-arid conditions of Southern Punjab, Pakistan.

scholarly journals (220) Determination of Water and Nitrogen Requirements of Cabbage using Fertigation

HortScience ◽  
2005 ◽  
Vol 40 (4) ◽  
pp. 1073E-1074
Author(s):  
Alan McKeown ◽  
Cathy Bakker
Keyword(s):  
Soil Moisture ◽  
Negative Impact ◽  
Irrigation System ◽  
Field Capacity ◽  
High Yield ◽  
Economic Losses ◽  
Trickle Irrigation ◽  
Marketable Yield ◽  
Yield And Quality

Fertigation is a promising strategy to improve nitrogen use efficiency, yield, and quality of cabbage (Brassica oleracea var. capitata), but there is a lack of data relevant to growers in Ontario. Field trials were conducted in 2003 and 2004 to determine the optimum rate of water and nitrogen application in terms of yield and quality of `Huron' cabbage. Treatments consisted of combinations of target soil moisture levels (25% to 100% field capacity) and nitrogen fertilizer (0–400 kg·ha-1 N) as dictated by a central rotatable composite design. Nitrogen applications were split with 50% broadcast and incorporated before planting and the remaining split into weekly applications via a trickle irrigation system. Water was applied two to three times per week to bring soil moisture up to the target levels. Maximum marketable yield was reached at a combination of 400 kg·ha-1 N and a soil moisture target of 100% field capacity. Many heads were undersized or undeveloped at low rates of nitrogen. Applications of nitrogen required for high yield and quality can pose a risk of leaching; however, use of fertigation minimizes potential in-season leaching. Estimated total residual nitrogen at harvest ranged from 83–211 kg·ha-1 N, which could have a negative impact on the environment. Thus, there is a considerable challenge to reduce environmental impact without economic losses. Improved knowledge of in-season nitrogen requirements might further reduce the levels of nitrogen applied without reducing yield and quality.

Evolution of yield and quality of sainfoin (Onobrychis viciifolia Scop.) in the spring growth cycle

Agronomie ◽  
2003 ◽  
Vol 23 (3) ◽  
pp. 193-201 ◽  
Author(s):  
Giorgio Borreani ◽  
Pier Giorgio Peiretti ◽  
Ernesto Tabacco
Keyword(s):  
Growth Cycle ◽  
Onobrychis Viciifolia ◽  
Yield And Quality
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