scholarly journals Response of sunflower to organic and chemical fertilizers in different drought stress conditions

2018 ◽  
Vol 111 (2) ◽  
pp. 271 ◽  
Author(s):  
Aydin KHODAEI-JOGHAN ◽  
Majid GHOLAMHOSEINI ◽  
Majid AGHA-ALIKHANI ◽  
Farhad HABIBZADEH ◽  
Ali SOROOSHZADEH ◽  
...  

<p>The main objectives of this research were to determine the effects of applying organic and chemical fertilizers under different irrigation regimes on sunflower (<em>Helianthus annuus</em> L.) morphological traits, yield components, grain yield and grain quality. The experiment was conducted as spilt plots based on a randomized complete block design with three replicates. Irrigation treatments at three levels (well-irrigated, mild and severe drought stress) were allocated to main plots and eight fertilizer treatments (urea (F1), urea + composted cattle manure (F2), zeocompost (F3), vermicompost (F4), zeolite-amended chicken manure (Z-ACM) (F5), zeocompost + vermicompost (F6), zeocompost + Z-ACM (F7) and vermicompost + Z-ACM (F8)) were randomized in sub-plots. The results showed that irrespective of the drought stress intensity, organic fertilizer treatments produced more dry matter, heavier and greater grain than did chemical treatments. In well-irrigated plots, the highest grain yield was obtained from F6, F7 and F8 treatments. Under drought stress conditions, the highest grain yield was obtained from the high zeolite content organic fertilizers i.e. F3, F5 and F7. We concluded that amending soil with organic fertilizers in combination with zeolite<em> </em>can be a beneficial approach for decreasing chemical fertilizer application rates and improving the sustainability of agricultural systems.</p>

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Tolera Abera ◽  
Tolcha Tufa ◽  
Tesfaye Midega ◽  
Haji Kumbi ◽  
Buzuayehu Tola

Barley is an important food and beverage crop in the highlands of Ethiopia, although intensive cultivation and suboptimal fertilizer application have caused nutrient depletion and yield decline. With this in view, integrated inorganic and organic fertilizer sources on yield and yield components of barley were studied. Ten treatments involving the sole NP, vermicompost, conventional compost, and farmyard manure based on N equivalency were laid out in a randomized complete block design with three replications in 2015 and 2016 cropping seasons. Significantly higher grain yield and biomass yield of barley were obtained with the application of sole recommended NP and the integrated use of 50 : 50% vermicompost and conventional compost with recommended NP. Mean grain yield of 2567 and 2549 kg·ha−1 barley was obtained from application of 50 :50% conventional compost and vermicompost based on N equivalence with recommended NP fertilizer rate, which markedly reduce the cost of chemical NP fertilizer required for the production of barley. The economic analysis confirmed the profitability of the integrated use of 50 : 50% conventional compost and vermicompost with recommended NP fertilizer for barley production. Therefore, the integrated use of 50 : 50% conventional compost and vermicompost based on N equivalency with recommended NP fertilizer was recommended for sustainable barley production in Chelia district and similar agroecology.


2021 ◽  
pp. 55-66
Author(s):  
Mulyati Mulyati ◽  
Baharuddin AB ◽  
R Sri Tejo Wulan

The use of inorganic fertilizers has an important role in increasing plant growth and production. But it also causes various problems such as decreasing soil organic matter, soil acidity, soil degradation, nutrient imbalance and increasing environmental pollution. Therefore, it needs to be balanced with the provision of organic fertilizers. A field experiment was conducted to study the effect of application of various doses of inorganic and organic fertilizers on N, P, K nutrient uptake and maize plant growth. The experimental design used was a randomized block design arranged in a factorial manner consisting of two factors. The first factor is the dose of inorganic fertilizer (A): 0, 150 and 300 kg ha-1 phonska and the second factor is organic fertilizer plus (P): 0, 10, 20 tons ha-1. The two factors were combined and each treatment combination was repeated three times. The data obtained were analyzed by analysis of variance at the 5% level of significance. The results showed that there was no interaction between the application of inorganic and organic fertilizers on the growth and nutrient uptake of N, P and K. However, the application of inorganic and organic fertilizers had a significant effect on all tested agronomic traits except for plant height. Nutrient uptake of N, P and K also increased significantly due to the application of inorganic and organic fertilizers. The balance of inorganic and organic fertilizer application increases the availability of nutrients as well as the uptake of N, P, and K nutrients by maize plants.


2021 ◽  
Vol 894 (1) ◽  
pp. 012030
Author(s):  
A T Maryani ◽  
N Mirna ◽  
F F Bahar

Abstract The use of chemical fertilizers in agriculture has caused soil degradation and is harmful to human health. Organic fertilizers made from animal waste have received worldwide attention because they are not detrimental to health or the environment. This paper describes the effect of using organic fertilizers from chicken manure on the growth of papaya plants. A completely randomized design was used in this study using two factors and three repetitions; the variations of the fertilizers given were 0, 50, 100, 150, and 200 g. This study informed that organic chicken manure had a significant effect on the growth of oil palm and papaya plants. The best growth is oil palm and papaya plants given 200 g of organic fertilizer from chicken manure.


2021 ◽  
Vol 1 (1) ◽  
pp. 43-50
Author(s):  
Nur Suhaida Mohamad ◽  
Faizah Abu Kassim ◽  
Norhanizan Usaizan ◽  
Azimah Hamidon ◽  
Zahir Shah Safari

Long-term use of inorganic fertilizers on leafy vegetables can increase soil acidity, harmful to the environment and leaving bad effects on human health. Organic fertilizer application is one of the safer alternatives with many beneficial effects by supplying nutrients for plant growth, environmental-friendly and producing an optimum quality of vegetables. Different organic amendment such as vermicompost, biochar and microbial compost has different effect on plant growth performance since good bacteria could improve structure of the soil and nutrient absorption. Therefore, this study aims to evaluate the effects of organic fertilizer on the growth performance and postharvest quality. The experimental design during planting was conducted in randomized completely block design with a factorial arrangement of treatmentswhile for postharvest quality study was conducted in completely randomized design. Organic fertilizer of vermicompost (110 g/plant), biochar (100 g/plant), microbial compost (80 g/plant) and chicken manure (37.5 g/plant) were treated on Pak choy two times on day 10 and day 24 after transplant. This research revealed the plant growth including plant height, leaf number and leaf length of Pak choy in all treatments were increased as growing stage increased. However, at the end of growing stage, microbial compost and vermicompost resulted in the highest of growth characteristics. In terms of postharvest quality, microbial compost showed the highest fresh weight and premium quality. This study proved that microbial compost at 80 g/plant exhibited optimum growth performance and the best postharvest quality of Pak choy.


AGRICA ◽  
2020 ◽  
Vol 6 (2) ◽  
pp. 79-89
Author(s):  
Josina Irene Brigetha Hutubessy

This research aims at investigating the effect of some organic fertilizers on the growth and yield of green onion plants. The kind of organic fertilizers which can give optimum growth and yield of green onion plants is Bokashi fertilizer. The design used in this experiment is Randomized Block Design (RBD). The treatment used is P0 = without fertilizer or 0 kg swath?1, P1= chicken manure 15 tons ha?1 or 2.4 kg swath?1, P2= cow manure 15 tons ha?1 or 2.4 kg swath?1, P3= vermicompost fertilizer 15 tons ha?1 or 2.4 kg swath -1, P4= bokashi fertilizer 15 tons ha?1 or 2.4 kg swath?1. The observed variables are the height of the plants, the number of leaves, the leaf width, the number of seedlings, fresh residue tan?1, the weight of fresh clump leaves tan?1, the weight of fresh clump leaves ha?1, the number of clump stem?1, and the weight of clump stem?1. Bokashi fertilizer application gives a very real effect to the variable of plants height growth with a total of 37.91%, the number of leaves amounted to 34.81%, the leaves width amounted to 51.35%, the number of seedlings amounted to 48.47%, the fresh residue tan?1 amounted to 44.81%, the weight of fresh clump leaves tan?1 amounted to 19.27%, the weight of fresh clump leaves ha?1 amounted to 50.84%, the number of clump stem?1 amounted to 39.60.%, and the weight of clump stem?1 amounted to 51.98%. Kind of organic fertilizers which can provide the optimum growth and yield of green onion plants is Bokashi fertilizer 15 tons ha?1.


2021 ◽  
Vol 23 (1) ◽  
pp. 23-29
Author(s):  
Yohanes Manggas ◽  
Widowati Widowati ◽  
Hesti Triana Soelistiari

[CHLOROPHYL CONCENTRATION AND YIELD OF PAKCOY (Brassica rapa L.) AFTER TWO YEARS OF BIOCHAR AND ORGANIC FERTILIZER APPLICATION IN ENTISOLS]. While nitrogen is necessary throughout the growth of vegetable plants, N deficiency disrupts chlorophyll formation, and hence, affecting the photosynthesis process. This study aimed to study the impact of the use of biochar and organic fertilizers on chlorophyll content and yield of Pak coy mustard in the third planting season in Entisols. This research was conducted in Bawang Hamlet, Tunggulwulung Village, Malang City. The first and second planting seasons, were May-November 2017 and August 2018-January 2019, respectively. Research on the third planting season was carried out in July-August 2019 without nitrogen fertilization. The research was arranged in a randomized block design, consisting of controls (Kl), chicken manure (A), compost (K), rice husk biochar (S), rice husk biochar + chicken manure (SA), rice husk biochar + compost (SK). The results showed that after two years of application, biochar and organic fertilizers had a positive impact on the increase in yield of Pakcoy even though fertilizer was not provided. The application of biochar and compost provided the best residual effect on the total chlorophyll of Pakcoy mustard. 


2015 ◽  
Vol 6 (1) ◽  
pp. 203-208
Author(s):  
Z Akhter ◽  
MH Imam ◽  
MA Razzak ◽  
AHMMR Akhter ◽  
M Akhter

The experiment comprised of 10 treatments, such as T0: Control condition; T1: All chemical fertilizer as recommended dose; T2: Cowdung as recommended dose; T3: Compost as recommended dose; T4: ½ Cowdung + ½ Compost; T5: Cowdung + Compost; T6: Cowdung + ½ Chemical fertilizer; T7: Compost + ½ Chemical fertilizer; T8: Cowdung + Compost +½ Chemical fertilizer and T9: ½ Cowdung + ½ Compost + ½ Chemical fertilizer. The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. Data on different growth characters and yield were recorded. Among the treatments all chemical fertilizers as recommended dose (T1) and cowdung + compost + ½ chemical fertilizer (T8) were found superior considering all yield contributing characters and yield. At 30 (Days after Sowing) DAS, the longest plant was recorded from T8 (27.93 cm), while the shortest plant was found in T0 (23.13 cm). At 50, 70, 90 DAS and harvest the longest plant was recorded from T1 (52.13 cm, 82.13 cm, 85.93 cm and 95.21 cm), whereas the shortest plant was obtained from T0 (41.14 cm, 65.84 cm, 70.77 cm and 76.00 cm). At 30, 50, 70, 90 DAS and harvest the maximum number of tillers hill-1 was recorded from T1 (2.00, 5.64, 6.93, 6.15 and 5.78), whereas the minimum number was found in T0 (1.33, 2.87, 4.20, 3.94 and 3.72). The longest spike (19.86 cm), maximum number of spikelets spikes-1 (20.33), maximum number of filled grains spike-1 (34.00), highest grain yield (3.71 t ha-1) and highest straw yield (5.78 t ha-1) was attained from T1 and the shortest spike (14.33 cm), minimum number of spikelets spikes-1 (14.18), minimum number of filled grains spike-1 (21.53), lowest grain yield (2.06 t ha-1) and lowest straw yield (4.49 t ha-1) was recorded from T0.DOI: http://dx.doi.org/10.3329/jesnr.v6i1.22066 J. Environ. Sci. & Natural Resources, 6(1): 203-208 2013


2017 ◽  
Vol 15 (3) ◽  
Author(s):  
Nazirwan Nazirwan ◽  
Anung Wahyudi

The aim of this research to observe and analyze the ability to grow of watermelon seeds in organic and inorganic fertilizers. Observing and analyzing the interaction between the ability to grow of watermelon seeds with plant growth in organic and inorganic fertilizers. Recommend a combination of organic and inorganic fertilizers that provide maximum results. This research was conducted in field of State Polytechnic of Lampung on June until Agustus 2014. This research uses a randomized complete block design (RCBD) with treatment in the form of thiamethoxam, inorganic fertilizers and organic fertilizers, namely: P1 = 0% organic fertilizer + 100% inorganic fertilizer; P2 = 25% organic fertilizer + 75% inorganic fertilizer; P3 = 50% organic fertilizer + 50% inorganic fertilizer; P4 = 75% organic fertilizer + 25% inorganic fertilizer; P5 = 100% organic fertilizer + 0% inorganic fertilizer. Doses of inorganic fertilizers: Urea = 300 kg.ha-1, SP-36 = 200 kg.ha-1, KCl = 100 kg.ha-1. Organic fertilizer: manure (cow manure) = 20 tons.ha-1. Data were analyzed with analysis of variance and if there is a real different treatments followed by LSD test at 5% level. The results showed that organic and inorganic fertilizer application significantly affected fruit length and fruit weight, but did not significantly affect the ability to grow, main stem length and number of leaves. The length of the longest fruit found in the treatment of inorganic fertilizer application of 75% + 25% organic fertilizer (P2). While the weight of the heaviest fruit found in the treatment of organic fertilizer application of 100% (P5). The highest ability to grow plant found in the treatment of 100% inorganic fertilizer application (P1), treatment of inorganic fertilizer application 50% + 50% organic fertilizers (P3), P2 and P5 treatment. The longest length of main stem found in P5 treatment, while the highest number of leaves found in P2 treatment. Keywords: fertilization, organic, inorganic, watermelon


2020 ◽  
Vol 5 (2) ◽  
pp. 327-336
Author(s):  
Sahrun Riza ◽  
Erita Hayati ◽  
Ainun Marliah

Abstrak. Cabai merah merupakan komoditas hortikultural yang termasuk golongan sayuran rempah yang termasuk famili terung-terungan dan sebagai penyedap masakan. Penelitian ini bertujuan untuk melihat pengaruh pemberian jenis pupuk organik terhadap pertumbuhan dan hasil tanaman cabai merah dan untuk melihat pengaruh varietas terhadap pertumbuhan dan hasil tanaman cabai merah serta untuk mengetahui ada tidaknya interaksi antara jenis pupuk organik dan varietas cabai merah. Penelitian ini dilakukan pada bulan Januari sampai dengan bulan Juni 2019. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) pola faktorial. Faktor yang diteliti terdiri dari dua faktor yaitu pupuk organik dan varietas. Faktor pertama jenis pupuk organik yang terdiri dari  3 taraf yaitu kontrol, pupuk kandang sapi dan pupuk kandang ayam, sedangkan faktor kedua varietas cabai merah yang terdiri dari 3 taraf yaitu Varietas TM-999, varietas Odeng dan varietas Lede Uwe gayo. Hasil penelitian menunjukkan bahwa perlakuan pupuk organik berpengaruh sangat nyata terhadap jumlah buah per tanaman dan berat buah per tanaman serta terdapat pengaruh yang nyata  terhadap jumlah cabang produktif dan potensi hasil ton/ha, namun terdapat pengaruh tidak nyata terhadap tinggi tanaman umur 15, 30 dan 45 hari setelah tanam dan diameter batang umur 15, 30 dan 45 hari setelah tanam. Pemberian pupuk organik pada berat buah per tanaman dan potensi hasil terbaik diperoleh pada pemberian pupuk kandang ayam. Sedangkan perlakuan varietas berpengaruh sangat nyata terhadap jumlah cabang produktif, berat buah per tanaman dan potensi hasil, namun terdapat pengaruh yang tidak nyata terhadap tinggi tanaman umur 15, 30 dan 45 hari setelah tanam, diameter batang umur 15, 30 dan 45 hari setelah tanam dan jumlah buah per tanaman. Jumlah cabang produktif, berat buah per tanaman dan potensi hasil tanaman cabai merah terbaik diperoleh pada penggunaan varietas TM 999. Terdapat interaksi yang sangat nyata antara pupuk organik dengan varietas terhadap jumlah buah per tanaman, berat buah per tanaman dan terdapat interaksi nyata terhadap potensi hasil. Kata kunci : Cabai Merah, Pupuk Organik, VarietasAbstrac. Red chili is a horticultural commodity that belongs to the spice vegetable group and part of the eggplant family that is used as a food flavoring. This study aims to look at the effect of applying organic fertilizer on the growth and yield of red chili plants;to see the effect of varieties on the growth and yield of red chili plants; and to find out whether there is an interaction between types of organic fertilizer and red chili varieties. This study employed factorial randomized block design (RBD) with two factors studied namely organic fertilizer and varieties. The first factor is the type of organic fertilizer consisting of 3 levels, namely control, cow manure and chicken manure, while the second factor is red chili varieties consisting of 3 levels, namely the TM-999 variety, Odeng variety and the Gayo Lede Uwe variety. The results showed that the treatment of organic fertilizer had a very significant effect on the number of productive branches and the potential yield of tons/ha, but there was no significant effect on plant height at ages 15, 30 and 45 days after planting and stem diameter 15, 30 and 45 days after planting. The fertilizer application at the fruit weight per plant and the best potential results obtained in the provision of chicken manure. Whereas, the treatment of varieties has a very significant effect on the number of productive branches, fruit weight per plant and yield potential, but there is no significant effect on plant height 15, 30 and 45 days after planting, stem diameter 15, 30 and 45 days after planting and number of fruits per plant. The number of productive branches, fruit weight per plant and the best yield potential of red chili plants were obtained from the use of TM 999 varieties. There was a very real interaction between organic fertilizer and varieties on the number of fruits per plant; fruit weight per plant; and there was a real interaction with yield potential.Keywords:Red Chili, Organic Fertilizer, Varieties


2020 ◽  
Vol 7 (1) ◽  
pp. 33-49
Author(s):  
Pienyani Rosawanti ◽  
Nurul Hidayati ◽  
Fahruddin Arfianto ◽  
Djoko Eko Hadi Susilo

This research aims to know the effect interaction of application of types and different dosage of organic fertilizers on production and fruit quality of melons on peatlands, effect of application of types and different dosage of organic fertilizers on production and fruit quality of melons on peatlands, and the agronomic efficiency of the use of several types and different dosage of organic fertilizers on production of melons on peatlands. This research design was used as a Randomized Block Design (RBD) consists of two factors with 4 replication. The first factor consisted of types of organic fertilizer (P) i.e. chicken manure (PA), guano manure (PG), and cow manure (PS). The second factor consisted of fertilizer dosage (D) i.e. 0 tons ha-1 (without fertilization, called control), D1 = 15 tons ha-1, D2 = 30 tons ha-1 and D3 = 45 tons ha-1. The data obtained by analysis of variance (ANOVA) or F test at a = 5% and 1% levels to determine the effect of treatment was tested further by HSD (honestly significant difference) testat the level of 5%. The result shows that the interaction type of organic fertilizer and the dosage of organic fertilizer treatment significant effect on the weight of the melon. Chicken manure is the best organic fertilizer on the size and quality of the melon. Dosage of 45 tons ha-1 organic fertilizer gave the highest results but it was not significantly different with a dosage of 30 tons ha-1. The use of chicken manure fertilizer of 30 tons ha-1 is more efficient in agronomy in increasing melons yield on peatlands.


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