Effect Of Fertigation Research Articles

Fertigation combined with catch crop maximize vegetable yield and minimize N and P surplus

Excessive fertilization is a common agricultural practice that often results in high risk of nitrogen (N) and phosphorus (P) losses in vegetable production in China. To reduce these losses, it is crucial to control residual nutrient levels in the rootzone and maintain crop growth. A 3-year field experiment was therefore conducted to investigate the effects of optimal fertigation (OF), OF combined with summer catch crop (OF-SCC; sweet corn with residue incorporation after harvest) or wheat straw application (OF-WSA; soil amended with wheat straw before cucumber seedling transplanting) on soil nutrients, soil residual N and P levels in the rootzone. The conventional management (flood irrigation with excessive fertilization and bare fallow during the summer period) served as control. The results showed that, although OF reduced irrigation amount, N input and P input by 49, 50 and 53%, respectively, it did not affect N and P uptake and fruit yields, and significantly reduced N and P surplus in the rootzone by 60 and 59%, respectively, when compared to the control. The SCC extracted 72–74 kg N ha−1 year−1 and 10–13 kg P ha−1 year−1 from soils. In addition, SCC and WSA increased soil soluble organic N in the rootzone but had little influence on N and P surplus. Generally, OF was efficient in reducing soil residual N and P, while SCC could temporarily retarded N leaching and improved nutrient recycling in the rootzone. Our results infer that OF combined with SCC is an efficient method for reducing soil N and P losses.

Effect of organic fertigation on yield and quality of bell pepper (Capsicum annuum var. Grossum Sendt.)

Investigation on effect of organic fertigation on growth and yield of bell pepper ( Capsicum annuum var. grossum Sendt.) was carried out at vegetable unit, Department of Horticulture, Faculty of Agriculture, Annamalai University, Annamalai Nagar, Tamil Nadu, during 2016-2017. There were nine treatment combinations including organic manures viz ., farm yard manure, vermicompost, bio-stimulants (Humic acid and Sea weed extract) and organic fertigation with Neem cake (two levels viz ., 1:20 and 1:40 dilution). Among the nine treatments, the treatment T 7 (Humic acid granules @ 5g plant -1 + fertigation with Neem cake 1:20) exhibited the highest yield of 580.18 g plant -1 , and it was followed T 1 (RDF 250 :150:150 kg NPK ha -1 ) with 561.5 g plant -1 . However, the lowest yield was recorded under T 8 (FYM @125 g plant -1 + fertigation with Neem cake 1:40) with 319.6 g plant -1 . Among the nine treatments, the per se effect of organic basal supplements derived from the treatment combinations revealed the superiority of humic acid over other organic supplements.

Development and production of fertigated coffee trees in the west region of Bahia, Brazil

The aim in the present study was to evaluate the effects of different split fertigation and doses on the development and production of drip irrigated coffee in the western region of the state of Bahia, Brazil. The study was performed at the Café do Rio Branco Farm, in Barreiras, BA, Brazil, in adult coffee trees aged approximately 3.5 years from the variety <em>Catuaí IAC 144</em>. A 3 x 3 factorial design was adopted, with three levels of nitrogen and potassium fertilization (900/800, 600/500 and 300/250 kg ha<sup>-1</sup> year<sup>-1</sup> N and K<sub>2</sub>O) in three monthly split fertigation (two, four and eight times). Stem and crown growth, productivity, yield and sieve were evaluated. The doses of 600/500 and 900/800 kg ha<sup>-1</sup> year<sup>-1</sup> N/K<sub>2</sub>O and the splits in two and eight times provided the highest productivities of coffee. A higher split fertigation was observed on the effect of N and K<sub>2</sub>O doses in coffee development variables (crown diameter and plant height). There was no effect of split fertigation and doses in the classification by sieves of coffee beans.

Effect of fertigation on growth,yield and quality of okra Abelmoschusesculentus L. Moench

Effect of fertigation on growth,yield and quality of okra Abelmoschusesculentus L. Moench

Effect of drip fertigation and plastic mulching on growth and yield of tomato

Effect of drip fertigation and plastic mulching on growth and yield of tomato

Effects of irrigation and fertigation on tree growth, yield and oil quality of olive cultivars in south Tunisia

Effects of irrigation and fertigation on tree growth, yield and oil quality of olive cultivars in south Tunisia

Effect of fertigation on the quality of tomato (Solanum lycopersicum)

Effect of fertigation on the quality of tomato (<i>Solanum lycopersicum</i>)

Effect of Drip Irrigation and Complementary Nutrition with Nitrogen on Potato Quality and Yield

A small-plot field experiment started in 2016 studied effect of drip irrigation on potato tuber yield and starch levels in the tubers. Two potato varieties with different vegetation periods (Monika, Jolana) were exposed to four drip irrigation intensity levels. They were non-irrigated controls and irrigated tubers with 60 %, 65 % and 70 % usable soil water capacity levels. The other studied parameter was represented by the effect of nitrogen fertilisation with the nitrogen nutrient added to the irrigation water (fertigation) in the course of the vegetation period in contrast to one-off application of the whole nitrogen dose before the potato planting. All irrigated variants in comparison to the non‑irrigated controls showed 30–60 % yield increase. The effect of fertigation on yields was statistically insignificant. Starch levels in the tubers were mostly affected by the variety. The irrigated variants in comparison to the non-irrigated controls showed higher starch levels in the harvested tubers but the differences were statistically insignificant.

Evaluation of the cumulative effect of drip irrigation and fertigation on productivity in a poplar plantation

Combined drip irrigation and fertigation significantly increased stem volume and biomass production in a poplar plantation, and showed a cumulative effect over years. The promoting effects were mainly attributable to increased nitrogen and water availability in the surface soil through the combined management. Fast-growing and high-yielding poplar plantations have been identified as major commercial forests in China. Intensive management of irrigation and fertilization can greatly increase productivity of plantations. Quantitative investigations on the cumulative effect of drip irrigation and fertigation over years are quite infrequent. We aimed to quantitatively evaluate the effects of drip irrigation and fertigation plans on tree growth and productivity in a poplar plantation, and to analyze their possible cumulative promoting effect over multiple years. Treatments including nine drip irrigation and fertigation combinations, and single furrow irrigation in spring as control, were conducted in a poplar plantation for three successive years. The combined treatments consist of three irrigation levels (WP−75, WP−50, and WP−25, in ascending order) and three levels of nitrogen addition (N60, N120, and N180, in ascending order). Soil nitrogen and water content were measured throughout the 3 years. Based on tree surveys, tree growth, volume, and biomass production were evaluated each year. Nitrogen and water availability in the surface soil increased in the drip irrigation- and fertigation-treated plots. Drip irrigation and fertigation treatments resulted in significant higher growth, stem volume, and biomass productions compared to control. Biomass increments in drip irrigation- and fertigation-treated plots were 4.8–50.0, 5.3–26.5, and 4.3–52.2% higher than control in the three experimental years, respectively, with WP−25N180 and WP−50N180 recording the highest increments. Fertigation showed cumulative effects over multiple years and the positive effects increased with the dosage. However, irrigation showed little cumulative effect and the greatest effect was obtained under medium level. Combined drip irrigation and fertigation greatly promoted the plantation productivity. The combined management effect varied with application plans and plantation ages, and showed a cumulative effect over years.

Effect of fertigation on growth, yield and quality of almond under Kashmir conditions

An experiment was conducted for three consecutive years during 2011–12 to 2013–14 with an objective to improve growth, yield and quality of almond by fertigation. There were seven fertigation treatments laid out in randomised block design with three replications. The results revealed maximum plant height (3.67 m), TCSA of main trunk (101.22 cm2), primary, secondary and tertiary branches (20.51 cm2, 6.66 cm2 and 1.97 cm2), canopy volume (8.21m3), and nut yield (4.94 kg/tree and 5.48 t/ha), leaf nitrogen and potassium content (2.39% N and 1.41%K) with 75% RDF through fertigation (split application of N: K in the ratio of 2/3N: 1/3K at nut set to nut development and 1/3N: 2/3K at kernel filling to maturation stage(T-4). The highest fruit number (2208/tree), however, was recorded with 100% RDF through fertigation (T2). The maximum nut weight and size (2.29 g and 36.51 × 21.45 mm), kernel weight and size (1.48 g and 24.71 × 14.59 mm) were recorded with 50% RDF through fertigation (T5) treatment of almond variety Waris under Kashmir valley condition.

Effect of fertigation and micronutrients spray on chlorophyll content of Early Bhagwa pomegranate under semi-arid conditions of Rajasthan

Effect of fertigation and micronutrients spray on chlorophyll content of Early Bhagwa pomegranate under semi-arid conditions of Rajasthan

Effect of zinc fertilization on yield and grain zinc concentration of rice under field conditions

Twenty-five field experiments were conducted on rice (Oryza sativa) as test crop across Uttar Pradesh, Punjab, Haryana and Himachal Pradesh during the two consecutive kharif seasons of 2015 and 2016. The effects of soil and foliar fertigation of zinc (Zn) on rice grain yield and grain Zn concentration were studied. Farmer's field under three different Zn application methods was designed with complete randomized block design in three replicates, as following treatments: (i) Farmers’ practices without Zn application or business as usual (control), (ii) Farmers’ practices with 50 kg ZnSO4.7H2O/ha soil Zn application before transplanting of rice crop and (iii) Farmers’ practices with foliar Zn application (0.5% (w/v) aqueous solution of ZnSO4.7H2O was realized two times (i. e. first at anthesis or heading and the second one at early milking stage of rice crop). Both Zn application methods increased rice grain yield across 25 sites. However, the effect of soil Zn fertilizer on grain yield was more effective than foliar Zn. Foliar Zn treatments on rice increased grain Zn concentration significantly over control across all locations. In particular rice crop, soil Zn application noticeably increased grain yield and slightly less content of grain Zn over foliar Zn application. However, foliar application of Zn at particular growth stages of rice was an important agronomic practice for the farmers to enhance grain yield and Zn concentration to alleviate ‘hidden hunger’. In conclusion, soil Zn application method increased rice yield and profitability as compared to farmers’ practices (control). Given the high effectiveness of foliar Zn application in increasing grain Zn concentration, it is recommended that farmers apply Zn to rice by foliar application for both grain yield and optimum grain Zn biofortification to combat Zn deficiency.

Effect of drip fertigation and boron foliar spray on storage quality of harvested onion seeds

Effect of drip fertigation and boron foliar spray on storage quality of harvested onion seeds

Effect of drip irrigation and fertigation on plant growth parameters, productivity and nutrient use efficiency of capsicum in wet temperate zone of Himachal Pradesh

Effect of drip irrigation and fertigation on plant growth parameters, productivity and nutrient use efficiency of capsicum in wet temperate zone of Himachal Pradesh

Effect of Drip Irrigation, Fertigation and Mulching on Growth and Dry Matter Accumulation in Bitter Gourd

Effect of Drip Irrigation, Fertigation and Mulching on Growth and Dry Matter Accumulation in Bitter Gourd

Effect of irrigation and fertigation under different mulches on yield parameters of spring maize (Zea mays L.)

A field experiment was conducted to determine the effect of irrigation and fertigation under different mulches on yield parameters of spring maize in 2013. Maize variety PMH-1 was sown on on split plot design taking three irrigation treatments i.e. I1: 1.0 ETc, I2: 0.80 ETc, I3: 0.60 Etc; four fertilizer treatments i.e. F1: 100% of NPK, F2: 80% of NPK, F3: 60% of NPK, FP (100% of fertilizer broadcasted) and three mulch treatments i.e. plastic mulch P (25 micron black mulch), straw mulch (rice mulch) and no mulch. Paired row planting on beds having spacing (60 cm x 20 cm) under drip irrigation treatment and furrow method irrigation was followed. The maximum grain yield (65.73 q/ha), number of grains per cob (294), 1000 grain weight (268 g) and cob weight per plant (138.37 g) were recorded in I2F2P treatment. The use of plastic mulch with drip irrigation and fertigation resulted into 20% fertilizer saving as compared to farmer's practice or conventional method. It was concluded that use of plastic mulch along with drip irrigation and fertigation (I2F2P) resulted in higher yield with proper utilization and saving of water.

Effect of Drip Fertigation on Potato Productivity with Basal Application of Loss Control Fertilizer in Sandy Soil

AbstractTo establish appropriate drip fertigation scheduling with loss control fertilizer (LCF) as a basal fertilizer in sandy soil, a 2‐year field study was conducted to evaluate the effects of five fertilizer levels (10, 30, 50, 70 and 90% of the recommended fertilizer dose (RFD) in 2012, and 10, 35, 60, 85 and 110% of RFD in 2013) on potato biomass, tuber yield and fertilizer and irrigation water productivity. All LCFs were applied as basal fertilizer while drip fertigation was applied when soil matric potential at 0.2 m depth under the emitters reached –25 kPa. Results showed 35–60% of RFD resulted in a better dry matter distribution between above ground and tubers during tuber bulking. Tuber yield initially increased and then decreased with increasing fertilizer rates in both seasons. The highest irrigation water productivity was for 50% of RFD in 2012 and 35% of RFD in 2013. Fertilizer productivity decreased slowly after fertigation level increased to about 50% of RFD. Therefore, 35–50% of RFD is suggested scheduling for potato production in sandy soils under drip fertigation with LCF as basal fertilizer in arid and semi‐arid regions in the north of China. Copyright © 2017 John Wiley &amp; Sons, Ltd.

English

English

Effect of drip irrigation, fertigation and plant geometry on yield and water use efficiency in summer groundnut (Arachis hypogaea L.)

A field experiment was conducted during summer seasons of 2014, 2015 and 2016 at Main Oilseeds Research Station, Junagadh Agricultural University, Junagadh, Gujarat. The study was designed to investigate the effect of planting geometry and nutrient management under drip and check basin method of irrigation on productivity of summer groundnut. Split-plot design with three replications was adopted to carry out the experiment. The treatments consisted of two methods of irrigation viz., drip irrigation at 0.8 PEF and check basin method at 1.0 IW/CPE as main plot treatments, three planting geometries viz., plant population @ 3.33 lakh/ha (spacing 30 cmx 10 cm), plant population @ 4.00 lakh/ha (spacing 25 cm x10 cm) and plant population @ 5.00 lakh/ha (spacing 20 cm x10 cm) as sub plot treatments and three fertility levels viz., 75% RDF (18.75:37.50 NP kg/ha), 100% RDF (25.0:50.0 NP kg/ha) and 125% RDF (31.25:62.50 NP kg/ha) as sub sub plot treatments. The results revealed that drip irrigation @ 0.8 PEF on alternate day (lateral spacing 60 cm, dripperspacing 45 cm, dripper discharge 2 LPH, operating time 1 hour and 5 minutes with pressure 1.2 kg/cm2) and watersoluble fertilizer @ 75% of RDF (18.75-37.50 kg NP/ha) in five equal splits through fertigation at an interval of 8 days starting from 20 DAS and plant population @ 5.00 lakh/ha (spacing 20 cm x 10 cm) recorded significantly the higher pod yield, haulm yield and net returns, beside 23.45 per cent water and 25 per cent fertilizer saving as compared to conventional practices.

질소관비 수준이 래빗아이 블루베리 &amp;#8216;브라이트웰&amp;#8217;의 생장과 양분흡수에 미치는 영향

블루베리의 주요 품종군은 북부형(Vaccinium corymbosum L.), 남부형(Vaccinium corymbosum hybrid)하이부쉬 블루베리와 래빗아이 블루베리(Vaccinium ashei Reade)로 나뉜다. 이들 품종군은 공통 적으로 배수성이 좋은 산성토양과 뿌리털이 없는 천근성 뿌리구조로, 보비력과 양분이용이 매우 취약한 환경을 가지고 있다. 따라서 본 연구는 시비효율성 증대를 위하여 래빗아이 블루베리의 생육특성에 미 치는 관비효과를 구명하고자 수행하였다. 시험장소는 경남 남해에 소재한 국립원예특작 과학원 남해출 장소 시설포장에서, 2013년 4년생 ‘Brightwell’(V.ashei Reade)레빗아이 블루베리 품종을 완숙유기물(피 트모스) 30%(v/v)혼합된 토양에 재식하여 수행하였다. 시비는 오레곤 주립대학에서 제공하는 표준시비 량 14g plant -1 의 관행시비와 4수준의 관비를 처리하여 양분흡수량과 수체생육 그리고 과실특성을 조사 하였다. 시비방법에 따른 수체생육과 과실생산량은 관비시비가 효과적이었으며, 관비수준별 시비효과는 표준시비량의 50%처리가 가장 효과적이었다. 처리별 엽중 질소함량은 표준시비량의 50% 관비처리가 14.4g kg -1 으로 가장 높았으나, 200% 관비구는 11.5 g kg -1 으로 가장 낮았다. 처리별 엽중 인산함량은 유의차가 나타나지 않았으나, 칼리와 칼슘 그리고 마그네슘함량은 표준시비량의 50%관비처리에서 가장 높았으며, 시비량의 증가는 엽중 무기성분 함량을 낮추는 경향을 나타냈다. 처리별 수관면적은 관행시 비가 4.86 m 3 으로 가장 낮은 수준을 보였으며, 50% 관비처리가 9.61 m 3 로 가장 높았다. 이와같이 50% 관비처리의 높은 시비효과는 각각 3,650 g plant과 12,849 g plant을 나타낸 건물중과 과실생산량에서 도 유사한 경향이었다. 한편 시비방법과 관비수준에 따른 과실의 안토시아닌과 당 그리고 산함량 등 과 실품질은 일정한 경향을 나타내지 않았다.