scholarly journals Effects of Different Organic Soil Amendments on Nitrogen Nutrition and Yield of Organic Greenhouse Tomato Crop

Nitrogen ◽  
2021 ◽  
Vol 2 (3) ◽  
pp. 347-358
Author(s):  
Anastasios Gatsios ◽  
Georgia Ntatsi ◽  
Dionisios Yfantopoulos ◽  
Penelope Baltzoi ◽  
Ioannis C. Karapanos ◽  
...  
Keyword(s):  
Green Manure ◽  
Crop Residues ◽  
Nitrogen Nutrition ◽  
Farmyard Manure ◽  
N Fertilization ◽  
Common Source ◽  
Biological Fixation ◽  
Tomato Crop ◽  
Green Manuring ◽  
Greenhouse Tomato

Manure is a common source of nitrogen (N) in organic farming. However, manure is not always easily available, while the maximum N amount added as animal manure in organic agriculture is restricted by EU regulations. The present study was designed to test whether green manuring with a warm-season legume and intercropping with a cold-season legume can substitute farm-yard manure or compost as N sources in organic greenhouse tomato crops. To test this hypothesis, a winter-spring (WS) tomato crop was installed in February following the incorporation of crop residues of an autumn-winter (AW) tomato crop intercropped with faba bean, which had been fertilized with cowpea residues as green manure. This treatment, henceforth termed legume treatment (LT), was compared with the use of compost or manure as an N fertilization source in both tomato crops. In addition, a combination of compost and LT was also used as a fourth treatment. The results showed that green manuring with legumes and particularly cowpea can contribute a significant amount of N to the following organic tomato crop, through the biological fixation process. Nevertheless, legumes as green manure, or compost, or their combination cannot efficiently replace farmyard manure as an N fertilization source. Compost exhibited a slow mineralization course.

scholarly journals Nitrogen Nutrition Optimization in Organic Greenhouse Tomato Through the Use of Legume Plants as Green Manure or Intercrops

Agronomy ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 766 ◽  
Author(s):  
Gatsios ◽  
Ntatsi ◽  
Celi ◽  
Said-Pullicino ◽  
Tampakaki ◽  
...  
Keyword(s):  
N2 Fixation ◽  
Green Manure ◽  
Nitrogen Nutrition ◽  
Farmyard Manure ◽  
Plant Growth Promoting Rhizobacteria ◽  
Nematode Infection ◽  
Tomato Crop ◽  
Total N ◽  
Greenhouse Tomato ◽  
Tomato Yield

In the present study, in addition to farmyard manure (FYM), cowpea was applied as green manure and faba bean as an intercrop in an organic greenhouse tomato crop, aiming to increase the levels of soil N. Three experiments (E1, E2, E3) were carried out, in which legumes were either noninoculated or inoculated with rhizobia alone or together with plant growth, promoting rhizobacteria. Inoculation of legumes with rhizobia considerably increased N2 fixation in E1 but had no impact on N2 fixation in E2 and E3. In E1, the application of cowpea decreased yield because it imposed a stronger nematode infection as the cowpea plants acted as a good host for Meloidogyne. However, in E2 and E3 the nematode infection was successfully controlled and the legumes significantly increased the tomato yield when inoculated in E2, irrespective of legume inoculation in E3. The total N concentration in the tomato plant tissues was significantly increased by legume application in E2 and E3, but not in E1. These results show that legumes applied as green manure can successfully complement N supply via FYM in organic greenhouse tomato, while legume inoculation with rhizobia can increase the amounts of nitrogen provided to the crop via green manure.

scholarly journals Nitrogen Utilization in a Cereal-Legume Rotation Managed with Sustainable Agricultural Practices

Agronomy ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 113 ◽  
Author(s):  
Mariangela Diacono ◽  
Paola Baldivieso-Freitas ◽  
Francisco Sans Serra
Keyword(s):  
Green Manure ◽  
Crop Production ◽  
Farmyard Manure ◽  
Agricultural Practices ◽  
Residual Effect ◽  
N Fertilization ◽  
Climatic Conditions ◽  
N Losses ◽  
Sustainable Agricultural Practices ◽  
N Use

Optimization of the nitrogen (N) inputs and minimization of nutrient losses strongly affect yields in crop rotations. The aim of this research was to evaluate the effect of agricultural practices on yield and N use in a 4-year cereal-legume rotation in organic farming and to identify the best combination of these practices. The following treatments were compared: conventional plough (P) vs. reduced chisel (RC) tillage; composted farmyard manure (F) vs. unfertilized control (NF); and green manure (GM) vs. no green manure (NoM). No significant differences were found for N use efficiency between P and RC in each crop. The results suggested that legumes in the tested rotation do not need supplemental N fertilization, particularly if combining GM and F. The use of composted farmyard manure should be considered in a long-term fertilization plan for cereals, to allow a higher efficiency in N use. The residual effect of fertilization over time, along with the site-specific pedo-climatic conditions, should also be considered. In both tested tillage approaches, soil N surplus was the highest in plots combining GM and F (i.e., more than 680 kg N ha−1 in combination with RC vs. about 140 kg N ha−1 for RC without fertilization), with a risk of N losses by leaching. The N deficit in NoM–NF both combined with P and RC would indicate that these treatment combinations are not sustainable for the utilized crops in the field experiment. Therefore, the combination of the tested practices should be carefully assessed to sustain soil fertility and crop production.

scholarly journals Energy efficiency of technology of cultivation of agricultural crops on the irrigated lands of the South of Ukraine

2021 ◽  
Author(s):  
R. A. Vozhegova ◽  
◽  
N. M. Galchenko ◽  
D. I. Kotelnikov ◽  
V. M. Мaliarchuk ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Crop Rotation ◽  
Green Manure ◽  
Crop Residues ◽  
Nitrogen Nutrition ◽  
Crop Rotations ◽  
Harvest Residues ◽  
Post Harvest ◽  
No Till ◽  
Productivity Indicators

The article reflects the results of research on the study of crop rotation productivity and energy efficiency components of crop rotation technology in terms of depending on different methods and depth of basic tillage. The purpose of the research was to determine the impact of basic tillage and fertilization on crop rotation productivity indicators and indicators of economic efficiency of crop rotation technology in irrigated conditions in the south of Ukraine. Methods: the field, in-gravimetric, visual, laboratory, calculation-comparative, mathematically-statistical and confessedly in Ukraine methods and methodical recommendations. The research was conducted during 2016-2019 in the research fields of the Askanian SARS IIA NAAS of Ukraine. Results. The use of differentiated and shallow single-depth system of basic tillage to the same productivity indicators at the level of 8.21 and 8.22 t.o.o./ha of products. However, the use of shallow tillage with different depths increased the productivity to 8.49 tons of water/ha, or 3.3%, and with no-till the lowest productivity was obtained 7.15 tons of water/ha. At the same time, the organo-mineral system of fertilizer N90P40 + green manure + crop residues yielded at the level of 7.61 tons per hectare. The improvement of nitrogen nutrition of crop rotations to N105P40 + green manure to get her with the earning of crop residues increased this figure to 8.06 ton so.o./ha, or 5.9% more than the control. At the same time, the maximum productivity indicators of 8.52 tons per hectare were obtained for the N120P40 system + green manure + post-harvest residues, which is actually 12% more than in the control. The reduction of total energy consumption was obtained with a shallow single-depth system of main cultivation of 26.45 GJ/ha, and the lowest values of 25.27 GJ/ha were obtained with no-till, which is 6.8% less than in the control. Application of organo-mineral fertilizer system N90P40 + green manure + post harvest residues formed costs at the level of 24.94 GJ/ha, increase of nitrogen nutrition of crop rotations to N105P40 + green manure with post harvest residues increased costs to 26.35 GJ/ha, and the highest costs 26.37 GJ/ha was obtained in the variant N120P40 + green manure, where the figures were higher by 11.5% compared to the control. Almost the same energy yield was obtained for differentiated and single-depth shallow tillage systems 127.33 and 127.64 GJha, respectively. The application of the system of multi-depth tillage increased the yield to 133.24 GJ/ha. Conclusion. The calculation of energy efficiency testifies that growing of agricultural cultures at bringing of N120Р40 + green manure + post-harvest residues in the system of the plowless on different depth is most expedient and justified from the power point of view. Technology of growing, which is based on these agrotechnology measures provides the receipt of maximal energy coefficient at the level of 4,96

scholarly journals Impact of Legumes as a Pre-Crop on Nitrogen Nutrition and Yield in Organic Greenhouse Tomato

Plants ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 468
Author(s):  
Anastasios Gatsios ◽  
Georgia Ntatsi ◽  
Luisella Celi ◽  
Daniel Said-Pullicino ◽  
Anastasia Tampakaki ◽  
...  
Keyword(s):  
Tomato Fruit ◽  
Soil Mineral N ◽  
Soil Mineral ◽  
Mineral N ◽  
Tomato Crop ◽  
Total N ◽  
Green Manuring ◽  
Preceding Crop ◽  
Greenhouse Tomato ◽  
Tomato Yield

An organic greenhouse crop of tomato was established in February following cultivation of cowpea (CP) or common bean (CB) for green pod production, or faba bean (FB) for green manuring. The vegetative residues of CP and CB were incorporated to the soil together with farmyard manure (FYM), prior to establishing the tomato crop. The FB plants were incorporated to the soil at anthesis together with either FYM or composted olive-mill waste (CO). Green manuring with FB resulted in higher soil mineral N levels during the subsequent tomato crop and higher tomato fruit yield when combined with FYM, compared to compost. The level of soil mineral N was the main restrictive factor for yield in organic greenhouse tomato. FB for green manuring as preceding crop to tomato increased significantly the level of soil mineral N and tomato yield compared to CB or CP aiming to produce green pods. The lowest tomato yield was obtained when the preceding crop was CB cultivated for green pod production. The soil mineral N was significantly higher when FYM was applied as base dressing compared with CO, despite the higher total N concentration in CO, pointing to slower mineralization rates of CO during tomato cultivation.

scholarly journals Packages of Organic Nutrient Management as Soil Policy for Upgrading Cropping System to Restore Soil Productivity

2020 ◽  
Author(s):  
Shaon Kumar Das ◽  
Ravikant Avasthe
Keyword(s):  
Organic Farming ◽  
Green Manure ◽  
Crop Residues ◽  
Nutrient Management ◽  
Farmyard Manure ◽  
Cropping System ◽  
Farming Systems ◽  
Soil Productivity ◽  
Organic Nutrient ◽  
Organic Farming Systems

The indigenous farming systems are, by and large, organically practiced. Organic farming systems facilitate the buildup of soil organic matter, reducing risk of erosion and runoff and enhancing nutrient storehouse in soils for plants. Rapid developments in organic farming promotion necessitated continuous flow of technology to meet day-to-day challenges. Farmyard manure (FYM), compost, and green manure are the most important and widely used bulky organic manures. Manuring with different short-duration legumes is suitable for maintenance of soil quality in terms of adding nitrogen to soil. Sustainable quantity of potassium can be maintained by vegetative mulching with crop residues. The use of balanced dosages of mixed compost at 5–10 t/ha along with 2 t/ha dolomite increases yield of maize, rice, mustard, and soybean. This article briefly describes about the integrated organic nutrient management as soil policy for upgrading cropping system to restore soil productivity.

EFFECT OF WHEAT, LEGUME AND LEGUME-ENRICHED WHEAT RESIDUES ON THE PRODUCTIVITY AND NITROGEN UPTAKE OF RICE-WHEAT CROPPING SYSTEM AND SOIL FERTILITY

2001 ◽  
Vol 49 (4) ◽  
pp. 369-378 ◽  
Author(s):  
S. N. SHARMA ◽  
R. PRASAD
Keyword(s):  
Adverse Effect ◽  
Soil Fertility ◽  
Nitrogen Uptake ◽  
Green Manure ◽  
N Uptake ◽  
Cropping System ◽  
Available P ◽  
Fertilizer N ◽  
Organic C ◽  
Green Manuring

Field experiments were conducted for two crop years at the Indian Agricultural Research Institute, New Delhi to study the effect of enriching wheat residue with legume residue on the productivity and nitrogen uptake of a rice-wheat cropping system and soil fertility. The incorporation of wheat residue had an adverse effect on the productivity of the rice-wheat cropping system. When it was incorporated along with Sesbania green manure, not only did its adverse effect disappear but the response to fertilizer N was also increased. There was no response to fertilizer N when Sesbania green manure was incorporated. When wheat residue was incorporated along with Sesbania green manuring, rice responded significantly to fertilizer N up to 120 kg N ha-1 in the first year and to 60 kgN ha-1 in the second year and at these levels of N, Sesbania + wheat residue gave 0.8 to 1.2 t ha-1 more grain, 0.6-1.0 t ha-1 more straw and 8-15 kg ha-1 more N uptake of rice resulting in 0.04-0.17% more organic C, 3-8 kg ha-1 more available P and 17-25 kg ha-1 more available K content in the soil than wheat residue alone at the same rates of N application. The respective increaseas caused by Sesbania green manure + wheat residue over Sesbania green manure alone were 0.3-0.5 t ha-1 in the grain and straw yield, 1-9 kg ha-1 in the N uptake of rice, 0.02-0.10% in organic C, 1-8 kg ha-1 in available P and 35- 70 kg ha-1 in available K content in the soil. These treatments also gave higher residual effects in succeeding wheat than wheat residue alone. The incorporation of residues of both wheat and Sesbania is thus recommended to eliminate the adverse effect of wheat residue and to increase the beneficial effects of Sesbania green manuring.

EFFECT OF ROTATIONS, TILLAGE TREATMENTS AND FERTILIZERS ON THE AGGREGATION OF A CLAY SOIL

1971 ◽  
Vol 51 (2) ◽  
pp. 235-241 ◽  
Author(s):  
G. S. EMMOND
Keyword(s):  
Green Manure ◽  
Crop Residues ◽  
Surface Soil ◽  
Clay Soil ◽  
Soil Aggregation ◽  
Wheat Crop ◽  
Green Manure Crop

Soil aggregation was lowest in a fallow-wheat rotation and increased in other fallow-grain rotations with the second, third, and fourth crops after the fallow year. The best aggregation was under continuous wheat. Rotations containing hay crops, particularly those with grass, increased soil aggregation significantly. The influence of tillage treatments on soil aggregation declined with increased depth. Various tillage treatments affected surface soil aggregation, in the following order: green manure crop plowed under > cultivated with trash cover > crop residues plowed under > cultivated with residues burned off = crop residues disced in. Fertilizer (11–48–0) applied to the wheat crop of the various tillage treatments increased soil aggregation except where the crop residues had been removed. The application of barn manure increased soil aggregation.

Progress towards no-till organic weed control in western Canada

2012 ◽  
Vol 27 (1) ◽  
pp. 60-67 ◽  
Author(s):  
Steven J. Shirtliffe ◽  
Eric N. Johnson
Keyword(s):  
Weed Control ◽  
Faba Bean ◽  
Cover Crops ◽  
Green Manure ◽  
Crop Residues ◽  
Organic Production ◽  
Field Pea ◽  
Western Canada ◽  
No Till ◽  
Green Manure Crops

AbstractOrganic farmers in western Canada rely on tillage to control weeds and incorporate crop residues that could plug mechanical weed-control implements. However, tillage significantly increases the risk of soil erosion. For farmers seeking to reduce or eliminate tillage, potential alternatives include mowing or using a roller crimper for terminating green manure crops (cover crops) or using a minimum tillage (min-till) rotary hoe for mechanically controlling weeds. Although many researchers have studied organic crop production in western Canada, few have studied no-till organic production practices. Two studies were recently conducted in Saskatchewan to determine the efficacy of the following alternatives to tillage: mowing and roller crimping for weed control, and min-till rotary hoeing weed control in field pea (Pisum sativum L.). The first study compared mowing and roller crimping with tillage when terminating faba bean (Vicia faba L.) and field pea green manure crops. Early termination of annual green manure crops with roller crimping or mowing resulted in less weed regrowth compared with tillage. When compared with faba bean, field pea produced greater crop biomass, suppressed weeds better and had less regrowth. Wheat yields following pea were not affected by the method of termination. Thus, this first study indicated that roller crimping and mowing are viable alternatives to tillage to terminate field pea green manure crops. The second study evaluated the tolerance and efficacy of a min-till rotary harrow in no-till field pea production. The min-till rotary hoe was able to operate in no-till cereal residues and multiple passes did not affect the level of residue cover. Field pea exhibited excellent tolerance to the min-till rotary hoe. Good weed control occurred with multiple rotary hoe passes, and pea seed yield was 87% of the yield obtained in the herbicide-treated check. Therefore, this second study demonstrated that min-till rotary hoeing effectively controls many small seeded annual weeds in the presence of crop residue and thus can reduce the need for tillage in organic-cropping systems.

scholarly journals Organic Vegetable Cultivation

2021 ◽  
Author(s):  
Usha Nandhini Devi Harinarayanan ◽  
Pugalendhi Lakshmanan
Keyword(s):  
Green Manure ◽  
Human Population ◽  
Crop Residues ◽  
Agricultural Practices ◽  
International Markets ◽  
Chemical Fertilizers ◽  
Pests And Diseases ◽  
Organic Cultivation ◽  
Premium Price ◽  
Green Manure Crops

Present day agricultural practices are posing a serious threat to the human population due to unscrupulous use of chemical fertilizers and pesticides. Conventional agricultural practices wherein large quantities and unscrupulous use of chemical fertilizers and pesticides are no longer safer as it directly enter the food chain. Hence, organic cultivation of vegetables is gaining momentum among the growing population. Organic practices rely on crop rotations, crop residues, plant and animal manures, growing of legume and green manure crops and biological control of pests and diseases. It aims to combine tradition, innovation and science in a balanced proportion to utilize the environment in safer manner and maintain ecological balance. Organic cultivation assures protection of the environment and plays a major role on the economy of a nation. Sustainable production of organic vegetables needs to be ensured to fetch premium price in the domestic as well as international markets. Organic farming has shown expansion in the recent years in the European countries offering scope for a better price in the international market.

Integrated fish farming: An international effort

1986 ◽  
Vol 1 (3) ◽  
pp. 127-130 ◽  
Author(s):  
Gerald Schroeder
Keyword(s):  
Green Manure ◽  
Crop Production ◽  
Crop Residues ◽  
Fish Farming ◽  
Microbial Flora ◽  
Fish Pond ◽  
Livestock Manure ◽  
International Effort ◽  
The World ◽  
Home Consumption

AbstractIn much of the developing world, the high cost of purchased feeds makes meat and milk too expensive to be consumed by the producers' own families. A fish pond integrated with livestock or crop production provides an important source of animal protein for home consumption or sale. This protein involves almost no cash costs, since the needed nutrients and energy are supplied by crop residues, green manure, livestock manure and sunlight. Conversion of manure into animal flesh is possible because the anoxic sediments support a microbial flora similar to that of the rumen. Although integrated fish farming has been practiced for thousands of years in China, it has not yet been successfully adapted to all regions for which it potentially is applicable. A program in Wuxi, China brings together students and scientists from all over the world who are working towards that goal.

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