Yield Of Sweet Corn Research Articles

The role of ACC deaminase producing bacteria in improving sweet corn (Zea mays L. var saccharata) productivity under limited availability of irrigation water

Accumulation of stress ethylene in plants due to osmotic stress is a major challenge for the achievement of optimum sweet corn crop yield with limited availability of irrigation water. A significant increase in earth’s temperature is also making the conditions more crucial regarding the availability of ample quantity of irrigation water for crops production. Plant growth promoting rhizobacteria (PGPR) can play an imperative role in this regard. Inoculation of rhizobacteria can provide resistance and adaptability to crops against osmotic stress. In addition, these rhizobacteria also have potential to solve future food security issues. That's why the current study was planned to examine the efficacious functioning of Pseudomonas fluorescens strains on yields and physiological characteristics of sweet corn (Zea mays L. var saccharata) under different levels of irrigation. Three irrigation levels i.e., 100% (I100 no stress), 80% (I80), and 60% (I60) were used during sweet corn cultivation. However, there were four rhizobacteria strains i.e., P. fluorescens P1, P. fluorescens P3, P. fluorescens P8, P. fluorescens P14 which were used in the experiment. The results showed that severe water stress (60% of plant water requirement) decreased chlorophyll a, chlorophyll b, and total chlorophyll contents, Fv/Fm ratio and nutrients uptake. A significant increase in F0, Fm, proline, total soluble sugars, catalase (CAT) and peroxidase (POX) activity led to less ear yield and canned seed yield. Combination of four strains significantly increased the yield traits of sweet corn i.e., ear and (44%) and canned seed yield (27%) over control. The highest promoting effect was observed in the combination of four strains treatment and followed by P1 strain in reducing the harmful effects of drought stress and improving sweet corn productivity. However, P14 gave minimum improvement in growth and yield indices under limited availability of water. In conclusion, combination of four strains inoculation is an efficacious approach for the achievement of better yield of sweet corn under osmotic stress.

Plant growth parameters and yield as influenced by integrated nutrient management in sweet corn

A field experiment was conducted during kharif season of 2019 at Department of Agronomy College of Agriculture, Latur to study the effect of integrated nutrient management in sweet corn (Zea mays L. var. saccharata sturt).The objective of experiment was to study the effect of integrated nutrient management on sweet corn. The experiment was laid out in randomized block design with seven treatments and replicated thrice. Treatments were 100% RDF, 100% RDF + FYM @ 5 t ha-1, 75% RDF + FYM @ 5 t ha-1, 100% RDF + Vermicompost @ 2.5 t ha-1, 75% RDF + Vermicompost @ 2.5 t ha-1, 100% RDF + FYM @ 5 t ha-1 + Vermicompost @ 1.25 t ha-1+ Azospirillum and 75% RDF + FYM @ 5 t ha-1 + Vermicompost @ 1.25 t ha-1 + Azospirillum. The result revealed that the application of 100% RDF + FYM @ 5 t ha-1 + Vermicompost @ 1.25 t ha-1+Azospirillum increased the growth characters viz., plant height (200 cm), number of functional leaves (17.60), dry matter accumulation (128.33 g), leaf area (76.35 dm2).Green cob yield (10621 Kg ha-1) and green fodder yield (21824 Kg ha-1) of sweet corn were highest with the application of 100% RDF + FYM @ 5 t ha-1 + Vermicompost @ 1.25 t ha-1 + Azospirillum.

Sweet Corn Phosphorus Uptake from Sandy Soil Amended with Anaerobically-digested Manure

ABSTRACT Anaerobic digester development on dairy, poultry, and swine confined animal feeding operations (CAFOs) reduce manure storage, produce energy and are poised to supply a variety of nutrient-rich materials. Field experiments were conducted in the Columbia Basin of South-Central Washington to evaluate the yield response and phosphorous (P) use efficiency of sweet corn (Zea mayes convar. saccharata cv. Sheba) to the application of P from anaerobic-digested manures. Treatments consisted of the application of 0, 10, 20, 40 kg P ha−1 from five sources, three from anaerobic digesters (AD); AD-dairy P fine solids; AD centrifuged poultry solids; and AD dairy-derived struvite-P compared to a commercial poultry fertilizer, commercial mono-ammonium phosphate, and a non-amended control. Sweet corn yields were not significantly different among P amendments or rates of application but were different between years and were greater than the No-P treatment in 2014. Phosphorus recovery efficiency defined as that percentage of applied P recovered by sweet corn averaged 138% among treatments receiving 10 kg P ha−1 and declined to 57% for higher rates of poultry materials and the commercial mono-ammonium phosphate (MAP) in 2013 and declined 50% in 2014 due to lower yields. Although yield was not different the uptake of P among treatments was significantly greater than the unfertilized control. The lack of yield differences among rates of P applied indicates that P was not limiting yield and suggests that under these production conditions the application of 10 kg P ha−1 of any of the amendments was sufficient. Abbreviations: AD: anaerobic digestion; ADD: anaerobic-digested dairy manure; ADP: anaerobic digested poultry manure; ADS: anaerobic-digested struvite; DM – dry matter; MAP – mono ammonium phosphate; PBP a commercial poultry fertilizer; PRD: percent P recovery efficiency difference method; PRB: percent P recovery balance method; PUE: Phosphorus use efficiency; AUE – Agronomic utilization efficiency.

Pengaruh Fungi Mikoriza Arbuskula Indigen Terhadap Kerapatan Gulma, Pertumbuhan dan Produksi Jagung Manis (Zea mays Saccharata (Sturt.) Bailey)

This study aims to determine the effect of local arbuscular mycorrhizal fungi (AMF) on weed density, growth and yield of sweet corn in marginal soils. This study used a randomized block design with local AMF propagules which consisted of 4 levels: 0 g/planting hole or control (A0), 15 g/planting hole (A1), 30 g/planting hole (A2) and 45 g/planting hole (A3). The research parameters observed were: weed density, plant height, stem diameter, crop yield, and the percentage of AMF infection in the roots of corn plants. The results showed that the highest weed dominance value at the age of 14 DAP was Cyperus rotundus as 36.8% in treatment of AMF 45 g/planting hole (A3), age 56 DAP the highest weed dominance value was Hyptis capitata as 47.1% in the treatment of AMF 30 g/planting hole. The best plant height and stem diameter were found in the treatment of AMF 45 g/planting holes (A3) at 56 DAP, the average plant height reached 234.05 cm and the average stem diameter reached 3.72 cm. Increased production of corn plants that were given local AMF ranged from 2.70 to 3.10 tons ha-1 or an average increase in overall corn crop production of 2.86 tons ha-1. The average percentage of mycorrhiza fungi infections in the highest roots of corn plants in the treatment of AMF 45 g/planting hole (A3) as 94%.  Key words: Arbuscular mycorrhiza fungi; vesicles; hypha; maize; ultisols

Effect of sowing date and some organic extracts on organic production of sweet corn

<p>Field experiment was conducted at the experimental farm of the Central Laboratory for Agricultural Climate, Agricultural Research Center, Giza, Egypt, during two successive seasons of 2017 and 2018. This experiment aims to improve the organic production of sweet corn via some organic extracts under different sowing dates. The seeds of sweet corn (Misthi F1 Hybrid) were planted on three different dates on 15 April, 10 May and 5 June in both seasons. Extracts of compost, vermicompost and chicken manure with applying half dose of compost were compared to full dose of compost. Results showed that early sowing had positive effect on growth, yield and ear properties of sweet corn. Applying half dose of compost with adding vermicompost extract gave the highest growth, yield and ear properties of sweet corn without significant differences compared to 50 % compost + chicken manure extract treatment in plant height and leaves number per plant. The treatments of the half dose of compost with adding any organic extracts were superior to the full dose of compost in all studied traits. This study revealed that early planting (April 15) with applying a half dose of compost + vermicompost extract produced the highest yield and quality of sweet corn ears.</p>

Sweet corn crop response to different dripline spacings in the dry Mediterranean area

Increasing the spacing between driplines is the most significant factor in reducing the high initial costs of drip irrigation system. A two-year field study (2017 and 2018) was conducted on a clay loam soil to evaluate the effects of different dripline spacings (75, 150, 225, and 300 cm) on sweet corn yields, soil water status, and irrigation water use efficiency (IWUE) in the dry Mediterranean area. Results showed that the average husked cob yield (HCY) and IWUE were significantly decreased as the dripline spacing increased. HCY was 13.93, 12.30, 9.18, and 6.86 t ha-1, for dripline spacing of 75, 150, 225, and 300 cm, respectively, for an average irrigation water depth of 725 mm. Both soil water storages and yields decreased with distance from the dripline. The 150-, 225- and 300 cm dripline spacings yielded 11.7, 34.0 and 50.8 % less than the 75 cm dripline spacing, but these wider dripline spacings provided 50, 67 and 75 % less unit-area cost, respectively. However, these reductions in crop yield did not justify the extra cost of the closer dripline spacing, at low crop prices and high dripline costs. Finally, further studies are needed to benefit from the higher initial unit-area cost savings obtained under the wider dripline spacings.

Row Spacings and Schedule of Urea Application on Sweet Corn (Zea mays) at MSU-Buug Campus

This study was conducted with an area of 540 square meters excluding canals and was divided into twenty plots. Each plot was measured 3m x 9m. The experimental area was laid out following Randomized Complete Block Design (RCBD). The study aimed to determine the effect of different row spacings and schedule of urea application in medium level on the yield of sweet corn. Results of the analysis showed that the average length and average circumference of corn ears in centimeter per plot per treatment both showed no significant difference as affected by different row spacings and schedule of application of urea. Results of the Analysis of Variance (ANOVA) on the average weight and total weight of corn ears in kg per plot per treatment showed that there was significant difference on the yield of sweet corn using row spacings. However, no significant difference on the schedule of application of urea. Thus, R2 is recommended in terms of longest husk, biggest circumference of husk, and heavier husk of corn ears. On the other hand, R1 is recommended to obtain more husk of corn ears and R5 is recommended to obtain heavier husk of corn ears.

Effects of phosphorus application on phosphorus uptake and utilization of sweet corn

<p indent=0mm>Understanding the phosphorus (P) absorption mechanism is the premise for high P utilization and high crop yield. In this study, the effects of different P rates (0, 37.5, 75, 150, and <sc>300 kg</sc> hm^–2, expressed as P0, P1, P2, P3, and P4, respectively) on sweet corn yield, biomass and P accumulation and tissue distribution, P transportation and P utilization were studied using a two-year P gradient positioning field experiment. Our results showed that P application significantly increased the fresh ear yield of sweet corn, but the yield difference among different P application rates (P1–P4) was not significant from 2018 to 2019 compared with P0 treatment. P application significantly increased the biomass and P accumulation of sweet corn plants at jointing, silking and fresh eating stages, respectively. In addition, P accumulation in grain was not significant different, which accounting for 42% of plant P accumulation. With P application, the contribution rate of P assimilation to the ear P accumulation was 57.3%–93.0% after anthesis, while the fresh ear yield per P accumulation, P physiological efficiency, agronomic efficiency, recovery efficiency and partial productivity decreased with P rates. Considering the yield and utilization efficiency of phosphate fertilizer, the supply of <sc>37.5 kg</sc> hm⁻² of phosphate fertilizer can meet the needs of high yield and efficient utilization of phosphate fertilizer in sweet corn in this experiment.

Spring sweet corn (Zea mays) response to irrigation levels, sowing methods and moisture conservation practices

A field experiment was conducted during spring (February-May) of 2017-18 at GBPUAT, Pantnagar to assess the effect of irrigation levels, sowing methods and moisture conservation practices on soil moisture, crop growth, productivity of spring season sweet corn. The experiment consisted of 3- irrigation levels including irrigation at IW/ CPE ratios of 1.0, 1.2, 1.4, 2- sowing methods (flat, furrow) and 3-moisture conservation practices (control, mulch @ 6 t/ha, biochar @ 3 t/ha) laid-out in a split-plot design, assigning combination of irrigation and sowing methods to main-plots and moisture conservation practices to sub-plots. The pooled results revealed that husked cob yield (15.79 t/ha) and biological yield (39.47 t/ha) of sweet corn were highest in IW/CPE 1.4 which were significantly higher than other two IW/CPE ratios. Furrow sowing resulted 8% increase in husked cob yield over flat sowing, while soil biochar application being at par with mulching showed significantly higher (6%) husked cob yield over control. The interaction effect showed that biological yield was at par between irrigation at IW/CPE 1.2 under furrow sowing and IW/CPE 1.4 under flat sowing. B: C ratio was higher with IW/CPE 1.4 (1.57), furrow sowing (1.54) and mulch (1.54). Higher soil moisture content before irrigation at tasseling stage was obtained under IW/CPE 1.4 (16.3%), furrow sowing (6.4%) and mulch (24.9%) as compared to IW/CPE 1.0, flat and control, respectively. Thus, sweet corn in sandy loam soil should be irrigated at IW/CPE 1.4, sown in furrows and supplemented with mulch or biochar application for enhancing productivity and profitability during spring season (February-May).

PENGARUH PEMBERIAN BIOCHAR TANDAN KOSONG KELAPA SAWIT DAN MIKORIZA TERHADAP PERTUMBUHAN DAN HASIL TANAMAN JAGUNG MANIS (Zea mays sacharrata L.) DI TANAH ULTISOL

The main problems of sweet corn cultivation in Ultisol medium are sour reactions, Al saturation and height P fixation, as well as low availability macro, micro nutrients especially Mo and Si. The provision of empty oil palm biochar is able to increase the growth and yield of sweet corn crops because the Biochar TKKS contains macro and micro nutrients such as N, P, K, Ca and Mg and also as a useful soil material to improve physical, chemical and biological properties of soil to increase pH, C-Organic, Ca, K, Mn, P, and mycorrhiza application be able to increase the availability of P so the fixation of P can be suppressed. The purpose of this research to learn the main influences of the Biochar TKKS, the main influence of mycorrhiza and the interaction of the growth and yield of sweet corn in the Ultisol medium. The experiment was conducted in the Experimental farm of the Agriculture Faculty, the University of Riau from May to August 2019. Research of experiments in the form of 4×3 factorial using Complete Random Design. The Biochar TKKS consists of four levels (0, 25, 3.75, 50 g polibag -1 ) as the first factor, mycorrhiza consists of three levels (0, 10, 15 g plant -1 ) as the second, each repeated three times. The results of the study show that giving of the biochar TKKS dose 3.75 g polibag -1 and mycorrhiza dose 15 g plant -1 in the Ultisol medium increased on plant height, straw weight, cob length and number of rows of each cob compared to no treatment.

PENGARUH JARAK TANAM JAGUNG MANIS (Zea mays Saccharata STURT) DAN VARIETAS KUBIS (Brassica oleracea VAR. CAPITATA) TERHADAP HASIL JAGUNG MANIS DAN KUBIS PADA SISTEM TUMPANGSARI DI DESA CANDI KUNING, TABANAN

Diversification of plant species is needed to anticipate price fluctuation of vegetables. Intercropping system compared to monoculture can give more benefits to farmers. The arrangement of plant spacings of sweet corn and cabbage variety is expected to result in higher yields and benefits in intercropping. The field experiment, which had the objective to study the effects of plant spacing of sweet corn and cabbage variety on yields of sweet corn and cabbage in the intercropping system, had been conducted from March to July 2008. The experiment was carried out at the dryland farming area at Candikuning Village, district of Baturiti, Tabanan regency, 1.200 m asl. In the experiment, a randomized complete block design with two factors namely plant spacing of sweet corn (120 cm x40 cm, 180 cm x 40 cm and 240 cm x 40 cm) and variety of cabbage (Green Nova and Summer-Autumn) were used. Plant spacing of cabbage was 60 cm x 40 cm. All treatments were replicated four times. The results of the experiment showed that the effect of interaction between plant spacing of sweet corn and cabbage variety in intercropping was not significant on yields of sweet corn and cabbage. Individually, sweet corn plant spacing of 120 cm x40 cm gave the highest fresh weight of cob without husk (10,91 t ha"'), which was 44.50% and 80.93% respectively higher than the spacing of ! 80 cm x 40 cm and 240 cm x 40 cm. The spacing of 180 cm x 40 cm resulted in not the significantly different fresh weight of cob with husk but gave the highest fresh weight of cabbage heads (56.101 ha'1), which was 27.36% higher than that at sweet corn spacing of 120 cm x 40 cm and was not significantly different from that at 240 cm x 40 cm. Cabbage variety Green Nova gave the highest head (56.101 ha1), which was 14.48% higher than variety Summer-Autumn. Intercropping between cabbage variety Green Nova and Sweet corn at 180 cm x 40 cm spacing resulted in the highest benefit (Rp. 20,488125 t ha'1), which was Rp. 3,335500 higher than the average benefit of cabbage monoculture. The efficiency of land use in intercropping was higher (LER: 1.69) than in monoculture (LER: 1). It is suggested to use cabbage variety Green Nova intercropped with sweet corn at I 80 cm x 40 cm spacing. An experiment studying the effect of cabbage intercropped with sweet corn and other short season vegetables planted after harvesting cabbages is also suggested.

Pengaruh Jarak Tanam dan Jumlah Benih Perlubang Tanam Terhadap Pertumbuhan dan Hasil Tanaman Jagung Manis (Zea Mays Saacaratha L.) Bonanza F1 Di Desa Wairkoja, Kecamatan Kewapante, Kabupaten Sikka.

Plant Spacing and the Number of Seeds per Planting hole is one of the factors that affect plant growth and yield. therefore. the study entitled The Effect of Planting Distance and Number of Perforated Planting Seeds on Growth and Yield of Sweet Corn (Zea mays Saacaratha L.) Bonanza F1 in Wairkoja Village, Kewapante District, Sikka Regency, has been carried out. This study uses a randomized block design (RCBD), which consists of two (2) factors, namely, spacing (J) and the number of seeds per planting hole (W) as follows J1: Length 50 cm x Width 25 cm. These two factors are combined to obtain nine treatment combinations. The observed variables were plant height (cm), number of leaves (strands), wet weight of trees, N, P, K pH, and C-organic soil. Based on the research that has been done, it can be concluded that the treatment of spacing did not affect the growth and production of corn, the number of seeds did not affect the number of leaves and the combined treatment of the number of seeds and spacing did not affect the wet weight of the fruit.

Efficacy of soil amendments on agronomic traits, yield and nutritional quality of Sweet Corn (Zea mays L. var. saccharata)

Efficacy of soil amendments on agronomic traits, yield and nutritional quality of Sweet Corn (Zea mays L. var. saccharata)

PENGARUH WAKTU TANAM TERHADAP PERTUMBUHAN DAN HASIL TANAMAN JAGUNG MANIS YANG DITUMPANGSARIKAN DENGAN TANAMAN KACANG TANAH

This study aims to determine the right planting time to obtain optimal sweet corn results in intercropping systems with peanut plants. This research was conducted in the Agricultural Land of Petobo Village, South Palu Village, Palu City, Central Sulawesi for 3 months starting from September to November 2017. The research was carried out using a one-factor Randomized Block Design (RBD), by grouping based on water sources. The treatments that were tried were the intercropping system (TS) planting time, as follows: TS0 = Sweet corn grown together with peanuts; TS1 = Sweet corn planted with 2 WAP peanuts; TS2 = Sweet corn planted with 4 WAP of peanut; TS3 = Sweet corn monoculture. Each treatment consisted of 3 replications so that there were 12 test unit plots. The results showed that the planting time treatment significantly affected the growth and yield of sweet corn on intercropping systems with peanuts. The treatment of planting time together between peanuts and sweet corn gave better growth than other treatments, but the sweet corn monoculture (TS3) treatment gave better results compared to other treatments. Good growth and yield of both plants is recommended at the same time between peanuts and sweet corn in intercropping systems

Yield, quality, water productivity and economic assessment of sweet corn under irrigation and nitrogen management in humid tropical climate

A field experiment was conducted during three consecutive winter seasons of 2013-14 to 2015-16 in the Indo-Gangetic plains encompassing humid tropical climatic region to study four irrigation regimes (gravity drip at 1.0, 0.8 and 0.6 ETc and surface irrigation) and four nitrogen management (100% RDN, 75% RDN + 25% RDN as vermicompost, 75% RDN + 25% RDN as FYM and 75% RDN + 25% RDN as mustard oilcake) on sweet corn. The results showed that surface irrigation with 75% RDN + 25% RDN as vermicompost was found the best treatment combination for maximum yield and economic realization which being competitive with drip irrigation at 1.0 ETc with 75% RDN + 25% RDN as vermicompost. Relatively higher quality parameters and moderate water productivity were observed with drip irrigation schedule at 1.0 ETc. The findings portray the precise planning and efficient management of available water and nitrogen resources for sweet corn growers.

Sweet corn in no-tillage system on cover crop residues in the Brazilian Cerrado

In recent years, the growth of the cultivated area with sweet corn in conventional tillage system in Brazil expanded, although crops can be grown on different residues of cover crops, which improve nutrient cycling and crop productivity. The objective of this study was to evaluate the biomass production and to quantify the rate of plant residues decomposition of different cover crops, and correlate the results with the production and grain yield of sweet corn in an area located in the Cerrado biome. The experimental design used was randomized blocks with eight treatments: PM - pearl millet; SH - sunn hemp; SG - signal grass; PM + SH; PM + SG; SH + SG; PM+ SH + SG; FW - fallow (spontaneous vegetation), which preceded the cultivation of sweet corn. Fresh biomass (FB) and dry biomass (DB) of the cover crops were evaluated, as well as the rate of plant residue decomposition. Sweet corn productivity, straw and corncob weight, and grain yield were also determined. Pearl millet presented a better performance in FB production, decomposition rate, residue half-life (T½ life) in soil, yield, corn cob strawweight and yield of sweet corn. Pearl millet, when mixed with other plants, presented reduced rate of residue decomposition and increased residue T½ life. The FW presented the lowest biomass production, with great rate of decomposition and low T½ life. Cover crops grown before sweet corn in soils of good fertility did not affect crop agronomic characteristics. Pearl millet is the best cover crop adapted to Cerrado Brazilian climatic conditions to be used in monoculture or in mixtures with other plants.

Growth Response and Yield of Sweet Corn on Palm Oil Sludge and Dolomite in Ultisols

Sweet corn is a very popular agricultural commodity in Indonesia, so the production of sweet corn needs to be increased. One of the problems that often encountered in the field is the lack of availability of fertile land that can support the growth of sweet corn. Therefore it needs technology to increase land productivity. In this case, the use of palm oil sludge as a source of organic matter and dolomite as a material that can improve soil fertility. The purpose of this research is to get the dosage of palm oil sludge and dolomite that optimal for the growth and yield of sweet corn. This research was conducted from December 2017 to March 2018 in Air Sebakul Village, Talang Empat Subdistrict, Central Bengkulu using Randomized Completely Block Design with two treatment factors. The first factor is the dosage of palm oil sludge consisting of three levels, namely 0 tons ha-1, 10 tons ha-1, and 20 tons ha-1. The second factor is dolomite dosage consisting of four levels, namely 0 tons ha-1, 2 tons ha-1, 4 ton ha-1, and 6 ton ha-1so that 36 sample units are obtained. The results showed that the best combination was obtained from 10 ton ha-1 palm oil sludge and 3,61 tons ha-1 dolomite, which was able to produce the diameter of corn crop stalks of 1,98 cm. The single palm oil sludge treatment gave no significant effect on all growth and yield variables. The addition of dolomite dosage up to 6 tons ha-1 was able to increase plant height, total leaf area, the weight of corn without cornhusk, length of corn without cornhusk, a diameter of corn without cornhusk, fresh weight of the plant, and dry weight of the plant.

PERTUMBUHAN DAN HASIL DELAPAN GENOTIPE JAGUNG MANIS YANG DIBUDIDAYAKAN SECARA ORGANIK DI LAHAN RAWA LEBAK

[GROWTH AND YIELD OF EIGHT SWEET CORN GENOTIPE ORGANICALLY GROWN IN SWAMPLAND]. Sweet corn (Zea mays saccharata Sturt) has a greater advantage than feed corn because of its early maturity and the price is more expensive. Recently, the need for sweet corn is higher than its production. To overcome these problems, it is necessary to expand the planting area by utilizing sub-optimal land such as swamps of low fertility. Agricultural intensification can be carried out through the use of organic materials to meet nutrient needs for growth and yield of sweet corn. Determination of varieties suitable for planting in sub-optimal land is also an effort to increase the productivity of sweet corn in swampland. This study aims to determine the potential of sweet corn genotype for organically cultivated in swampland. The material used in this study consisted of seven sweet corn genotypes and one comparative variety planted in experimental plots based on a Randomized Completely Block Design (RCBD) with three replications. The variables evaluated in this study were the growth, development, yield, and yield components of sweet corn. The results showed that the 8 sweet corn genotypes tested had significantly different in plant height, number of leaves, number of rows of seeds per cob, and yields per plot. Caps 17 B x Caps 22 and Caps 3 x Caps 5 are genotypes that have better growth than the comparative variety. On the other hand, the yield and yield components of the comparative variety was higher among the other genotypes tested.

Pengurangan Penggunaan Pupuk Urea Melalui Pemanfaatan Tanaman Turi Mini (&lt;i&gt;Sesbania rostrata&lt;/i&gt;) pada Budidaya Jagung Manis

The use of inorganic fertilizer in agriculture as well as on sweet corn cultivation is quite high. Inorganic fertilizer recommended for sweet corn is 35 kg urea ha-1, 150 kg TSP ha-1 and 150 kg KCl ha-1. Besides high prices, its difficult to find when needed. To overcome this, an experiment was carried out by utilizing TM plants for reducing urea input. This research was carried out in Air Kuti Village, South Lubuklinggau District I, Lubuklinggau City, South Sumatera Province with an altitude of 110 meters above sea level (ASL), from April to June 2017. The experiment was arranged out in a randomized completely block design (RCBD) factorial 4 x 3 and repeated three times. The first factor was treatment combination of inorganic N fertilizer (urea) and TM plants consisted 4 kinds i.e: 75% urea and 1 TM plant, 50% urea and 2 TM plants, 25% urea and 3 TM plants, and 0% urea and 4 TM plants. The second factor was a frequency of urea application consisted of 3 levels i.e: 1-time application 15 days after planted (15 DAP), 2 times application (15 and 30 DAP), and 3 times application (15, 30 and 45 DAP). The results showed that application of urea fertilizer dosage of 25% recommended (108,75 kg urea ha-1) combinated with 3 stem of TM plants produced the best growth and yield of sweet corn. The frequency of urea application 3 times produced the best growth and yield of sweet corn.

A critical review on Integrated Nutrient Management (INM) in sweet corn

The continuous use of inorganic fertilizers increases the cost of production, deteriorates soil health and pollutes the environment. Optimum use of organic manures like FYM, vermicompost and bio fertilizer provides all essential nutrients to plant and improves physical, chemical and biological properties of soil. The approach on integrated nutrient management (INM) with judicious use of organic and inorganic nutrient is indispensable for intensification of research. INM helps in the balanced fertilization of crops, where the right amount of plant nutrient from an appropriate source is applied at proper growth stage of a specific crop plant. It is a step towards sustainable agriculture as it reduces the stress of pollution on the nature and the judicious use of resources optimises the productivity. The recent years research work carried out on the integrated nutrient management in India and abroad with respect to growth, yield, nutrient uptake, quality parameters and economics of sweet corn has been critically reviewed in this chapter.