scholarly journals Pengaruh Kompos Jerami Dan Pupuk NPK Terhadap N-Tersedia Tanah, Serapan-N, Pertumbuhan, Dan Hasil Padi Sawah (Oryza sativa L)

Agrologia ◽  
2018 ◽  
Vol 2 (1) ◽  
Author(s):  
Elizabet Kaya

Nitrogen is a major nutrient for plant growth, nitrogen was absorbed by plant roots in the form of NO3-(nitrate) and NH4+ (ammonium). Nitrogen deficiency affects negatively on plants, like stunted plant, leaf turns yellow, and limited rooting system, while excess nitrogen causes elongated vegetative growth, easy to fall down, reduce the grain quality and its response to pests and diseases. The purpose of this study is to determine the available soil-N, plant N uptake and growth as well as the yield of paddy rice (Oryza sativa L) due to the treatment of straw compost and NPK fertilizer. Treatment was carried out in a factorial experiment designed in randomized block design, the straw compost factor consisted of  two dose levels: 0 and 3.0 ton ha-1 and NPK fertilizer factor consisted of five dose levels: 0, 75, 150, 225, and 300 kg ha-1 with three replications. Research findings indicated that the amendment of straw compost together with NPK fertilizer increased the plant uptake of N, but straw compost improved independently the soil-N, and plant growth (plant height and number of tillers/clump). Likewise, NPK fertilizer independently increased soil-N, growth parameter (plant height and number of tillers/clump) and grain yield (number of grains/panicle and number of filled grain/panicle). The straw compost amendment at 3 tons ha-1 along with 150 kg NPK ha-1 resulted the highest N-uptake of 3.51%.

Author(s):  
Sri Rahayu ◽  
Setiawan Setiawan ◽  
Jojo Kusna

<em>This study aims to determine the effect of the interaction of cow state fertilizer and Mutiara NPK to plant growth and production of purple eggplant on alluvial soil in polybags. This research was conducted on Karet Street, West Pontianak District, West Kalimantan Province with an altitude of ± 1 meter above sea level. This research was conducted from March 25 to July 2, 2021. This study used a completely randomized design (CRD) with a factorial pattern consisting of 2 factors. The first factor is cow state fertilizer (S) with 3 levels, namely s<sub>1</sub> = 40 grams/polybag, s<sub>2</sub> = 60 grams/polybag and s<sub>3</sub> = 80 grams/polybag. The second factor is Mutiara NPK fertilizer (N) with 3 levels, namely n<sub>1</sub> = 1,2 grams/polybag, n<sub>2</sub> = 1,6 grams/polybag and n<sub>3</sub> = 2 grams/polybag. The number of treatments in this study was 9 treatment combinations and each treatment consisted of 3 times. Each replication consisted of 3 plant samples, so the total number of plant samples was 81 plants. The variables observed in this study were plant height (cm), number of leaves per plant (strands), number of fruits per plant (fruit), and fruit weight per plant (grams). The results showed that cow state fertilizer treatment had a significant effect on the number of leaves per plant, a very significant effect on fruit weight per plant, and no significant effect on the number of plants and fruit per plant. Mutiara NPK fertilizer treatment had a significant effect on fruit weight per plant and had no significant effect on plant height, number of leaves per plant, and number of fruit per plant. The interaction of cow state fertilizer and Mutiara NPK had a significant effect on fruit weight per plant and had no significant effect on plant height, number of leaves per plant, and number of fruit per plant.</em>


2021 ◽  
pp. 84-93
Author(s):  
Anak Agung Ketut Sudharmawan ◽  
Baiq Erna Listiana ◽  
Sofi Rianti

Diallel crossing is a method that is widely used to determine the ability to combine each individual so that it can identify the potential elders to be used in crossbreeding programs to assemble high yielding varieties. This experiment aims to determine the combining power of dialelic crosses of several varieties of rice using the Griffing II method, carried out in the experimental field of the Faculty of Agriculture, Mataram University in Nyiur Lembang Village, Narmada District, West Lombok Regency, from February to July 2019. This experiment uses the method experiments carried out in the field. The materials used in this experiment were four parents, namely IPB 3S variety, Situ Patenggang variety, Inpari 32 and G11 strain and the phenotype of the cross between the four parents. The experimental results showed that the effects of general affinity and special affinity for all observed characters (plant height, number of productive tillers, number of non-productive tillers, panicle length, number of filled grain, number of empty grain and weight of 100 grains) were significantly different, except on the effect of general affinity for the number of non-productive tillers showed no significant difference. The results of the combined power analysis of the four elders were positive, so it can be said that the four elders would get good results when crossed with a number of other genotypes.


2018 ◽  
Vol 2 (2) ◽  
pp. 188
Author(s):  
Ahmad Khanafi ◽  
Yafizham Yafizham ◽  
Didik Wisnu Widjajanto

The objective of this research was to investigate the effectiveness of combination of bio-slurry fertilizer and NPK fertilizer on the growth and production of two varieties of rice. The experiment was assigned in a completely randomized design of factorial pattern. The first factor was the combination of bio-slurry and NPK fertilizer that consisted of P0 = no added fertilizer (control) 0 ton/ha, P1 = NPK fertilizer 550 kg/ha (165 kg N, 33 kg P, 45 kg K); P2 = bio-slurryfertilizer 2.3 tons/ha (45 kg N, 14 kg P, 23 kg K) and NPK fertilizer 400 kg/ha (120 kg N, 24 kg P, 32 kg K); P3 = bio-slurryfertilizer 4.6 tons/ha (90 kg N, 28 kg P, 46 kg K) and NPK fertilizer 250 kg/ha (75 kg N, 15 kg P, 20 kg K); P4 = bio-slurry fertilizer 5.9 tons/ha (115 kg N, 36 kg P, 59 kg K) and NPK fertilizer 100 kg/ha (30 kg N, 6 kg P, 8 kg K); and P5 = bio-slurryfertilizer 8.5 tons/ha (165 kg N, 52 kg P, 85 kg K). The second factor was varieties of rice that consisted of V1 : IR-64 and V2 : Ciherang. Each treatment was repeated three times. Parameters observed were plant height, number of tillers, weight of 1.000 grains, and rice production. Data were analyzed using ANOVA and continued with Duncan’s Multiple Range Test (DMRT). The results showed that the combination of bio-slurry fertilizer and NPK fertilizer were significantlyaffect (p <0.05)all observation parameters, while varieties of wetland rice did not show significant effect on all observation parameters (p<0.05). The application of bio-slurry fertilizer in single treatment or in either combination with NPK fertilizer had the same result with the treatment of NPK fertilizer on the growth and yield of rice. Keywords: rice, fertilizer combination, bio-slurry fertilizer, NPK fertilizer


EUGENIA ◽  
2018 ◽  
Vol 24 (1) ◽  
Author(s):  
Mifta Mamentu ◽  
Jeanne M. Paulus ◽  
Edy Lengkong

ABSTRACT The purpose of the research was to studied the application of gliricidia MOL on the growth and yield of lowland rice in the salibu method, and to get the best concentration of gliricidia liquid organic fertilizer  (POC) on the growth and production of lowland rice. Field research has been conducted in Tababo Village, Subdistrict of Belang, district of Southeast Minahasa. The treatment in the experiment consists of one treatment factor, that were concentrations of gliricidia POC, ie  : 0, 50 , 100, 150, and 200 ml/litre. The results showed that gliricidia POC  have an effect on plant height, the number of  grain/panicle, and the dry grain yield (GKP) / plot, but not affect the number of productive tillers and weight of 1,000 grain. The best results were achieved in gliricidia POC concentration 200 ml/litre  with the highest values were: plant height was 98.93 cm; 116.420 grain/panicle; and 8.300 kg dry grain yield or equivalent to 6.92 ton/ha.Keywords : gliricidia POC, production, lowland rice,  salibu method


Sign in / Sign up

Export Citation Format

Share Document