Effect Of Nutrient Management Research Articles

Effect of nutrient management and cultivars on sugarcane yield and economics

An experiment was conducted to study the effect of fertilizers levels and cultivars on Sugarcane yield and economics crop at Agriculture Research Station, Kumta, Uttara Kannada of University of Agricultural Sciences, Dharwad during 2018-19 and 2019. The experiment consisted three main plots (Cultivars) viz., C1-SNK635, C2- Co-86032 and C3 – Konanakatte and five sub plots (Fertilizers levels) F1: 75% RDF, F2: 100% RDF, F3:125% RDF, F4: 150% RDF and F5: control. The experiment was laid out in Strip Block Design with three replication. The results indicated that the cane yield of plant cane was influenced significantly by RDF levels, and cultivars and their interactions. Among cultivars, SNK-635 recorded significantly higher cane yield (133.9 t ha-1) than Co-86032 (114.3 t ha-1) and Konanakatte (81.8 t ha-1). Cultivar Co-86032 also had significantly higher cane yield than Konanakatte. Different RDF levels treatments (F1 to F4) recorded significantly higher cane yield than control treatment. There was increased cane yield with increased levels of fertilizers. Application of 150% RDF recorded significantly higher cane yield (137.6 t ha-1) than control (71.0 t ha-1) and 75% RDF (96.1 t ha-1) but on par with 125% (128.5 t ha-1) and 100% RDF (116.8 t ha-1). Sugarcane cultivar SNK- 635 recorded significantly higher net return (₹274933 ha-1) compared to Co-86032 (₹219103 ha-1) and Konanakatte (₹126559 ha-1). The cultivar Konanakatte gave lower net returns (₹126559 ha-1). Among nutrient management treatments, 150% RDF given significantly more net returns (₹268947 ha-1) than control (₹144968 ha-1), 75% RDF ( (₹160262 ha-1) and 100% RDF (₹214279 ha-1) but on par with 125% RDF (₹245868 ha-1). Significantly lower net returns was recorded in control treatment (₹144968 ha-1). Among RDF levels, lower net returns recorded in 75% RDF (₹160262 ha-1) than other RDF levels. With increased RDF levels, there was increase in net returns. But net returns increased significantly up to 100% RDF levels. Similar trend of plant cane was reported in ratoon cane also for cane yield and economics.

Long-term effect of nutrient management on soil microbial properties and nitrogen fixation in a vertisol under soybean-wheat cropping sequence

The present experiment was conducted during 2018-19 under the ongoing All India Coordinated Research Project on Long-term Fertilizer Experiment with soybean-wheat cropping sequence since 1972 at the Research Farm of Department of Soil Science and Agricultural Chemistry, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur, Madhya Pradesh, India. The microbial properties and nitrogen (N2) fixation of soil under different nutrient combinations were studied in a 46-year old long-term fertilizer experiment in a Vertisol. The experiment was conducted in a randomized block design comprising of 10 treatments viz., T1: 50% NPK, T2: 100% NPK, T3: 150% NPK, T4: 100% NPK + Hand weeding (100% NPK+HW), T5: 100% NPK + zinc (100% NPK + Zn), T6: 100% NP, T7: 100% N, T8: 100% NPK+ 5 t FYM ha-1 (100% NPK+FYM), T9: 100% NPK(–S) and T10: Control, each treatment being replicated four times in a randomized block design. Soil samples from all the treatments were collected from 0–15 cm depth and microbial properties and N2 fixation of soil were estimated. Significant increase in soil organic carbon, total N and available N were recorded with 100% NPK+FYM. Similarly, the maximum number of nodules and their biomass were also recorded in 100% NPK+FYM treatment at 30, 45 and 60 days after sowing. The bacteria, fungi and actinomycetes population counts in soil were 39.1×107, 42.7×104 and 39.1×105 cfu g-1 soil, respectively with the integrated application of inorganic fertilizer and organic manure (100% NPK+FYM) over control (11.7×107, 18.5×104 and 13.6×105 cfu g-1 soil, respectively). Further, the conjoint use of balance dose of fertilizers with FYM was also significantly superior in terms of soil microbial biomass carbon and microbial biomass N over other treatments even after 46 years of experimentation. The grain and straw yield of soybean and their N uptake were also significantly increased with graded dose of fertilizers and maximum yield and N uptake were noted in 100% NPK+FYM treatments over control plot.

Prediction of Maize Yields from In-Season GreenSeeker Normalized Difference Vegetation Index and Dry Biomass as Influenced by Different Nutrient Combinations

To mitigate low maize productivity, improve on-farm planning and policy implementation, the right fertilizer combinations and yield forecasting should be prioritized. Therefore, this research aimed at assessing the effect of applying different nutrient combinations on maize growth and yield and in-season grain yield prediction from biomass and normalized difference vegetation index (NDVI) readings. The research was done in Embu and Kirinyaga counties, in Central Kenya. Nutrient combinations tested were P+K, N+K, N+P, N+P+K, and N+P+K+Ca+Mg+Zn+B+S. The results showed consistently lowest and highest NDVI reading, dry biomass, and grain yields due to P+K and N+P+K+Ca+Mg+Zn+B+S treatments, respectively. Positive NDVI responses of 56%, 14%, 15%, and 15% were recorded with N, P, K, and combined Ca+Mg+Zn+B+S, respectively. These nutrients, in the same order, recorded 54%, 20%, 8%, and 18% positive responses with biomass. The GreenSeeker NDVI reading with grain yield and aboveground dry biomass with grain yield recorded R2 ranging from 0.23-0.53 and 0.30-0.61 (in Embu), and 0.31-0.64 and 0.30-0.50 (in Kirinyaga), respectively. When data were pooled, the prediction strength increased, reaching a maximum of 67% and 58% with NDVI and biomass, respectively. Yield prediction was even more robust when the independent variables were combined through multiple linear model at both 85 and 105 days after emergence. From this research, it is evident that the effects of balanced fertilizer application are detectable from NDVI readings—providing a tool for tracking and monitoring nutrient management effects—not just from the nitrogen perspective as commonly studied but from the combined effects of multiple nutrients. Also, grain yield could be accurately predicted early before harvesting by combining NDVI and biomass yields.

PSVI-11 Effects of nutrient management and cropping strategies in a dual-crop forage production system of silage corn and perennial grass on nutritional quality and predicted milk production of dairy cattle

Abstract The objectives of this study were to determine the effects of incrementally applied enhanced nutrient management, cropping practices, and advanced production technologies on nutrient composition and in vitro degradability of whole plant corn and perennial grass (tall fescue) and the predicted milk production of dairy cattle. Farm management strategies included: conventional system with manure slurry broadcast, late harvest corn, and grass cut 5 times per year (F1); improved nutrient management with manure sludge applied to corn and liquid applied to grass (F2); improved nutrient management and cropping practices with separated manure, an early harvest corn inter-seeded with a relay crop (Italian ryegrass), and grass cut 3 times per year (F3); and advanced technologies that included a nitrification inhibitor (diacyandiamide, DCD; F4). The field trial was conducted as a randomized complete block design over 2 years with 4 blocks each divided into corn and grass, 4 subplots for each crop, and 2 replicates within each subplot. Enhanced nutrient, cropping, and advanced management increased (P < 0.05) the crude protein (CP) concentration in corn compared to the conventional system (Table 1). The DCD reduced (P < 0.05) the CP concentration and the highly degradable fiber of the relay crop compared to management without DCD. Decreasing the number of cuts of grass reduced (P < 0.05) the CP concentration in the spring harvest, increased (P < 0.05) the fiber concentration in spring and summer harvests, and reduced (P < 0.05) fiber degradability in all harvests. Milk production predicted from the nutritional quality and representative proportions of forages using the Cornell Net Carbohydrate and Protein System was increased with enhanced management. The lower forage quality of grass cut 3 times compared to 5 times annually was offset by the improved quality of corn and relay crop under enhanced field management of the dairy farm.

Response of nutrient management on growth and yield attributes of Brown top millet [Brachiaria ramose] in red sandy soil

The study was conducted during lait Rabi 2019-20 at ICAR- Krishi Vigyan Kendra, Haveri to Effect of nutrient Management on growth and yield of Brown top millet. The experiment was laid out in RCBD comprising of eight treatments replicated thrice. Studies revealed that the growth parameters, yield attributes and grain yield of Brown top millet differed significantly due to foliar application of NPK along with RDF and soil application of micronutrients along with RDF. The results indicated that the application of RDF + FYM 6t/ha + foliar nutrition of 19:19:19 @ 2% at 30 and 45 DAS recorded significantly higher plant height (69.75cm), number of tillers per plant and number of grains per plant (436) at harvest over the other nutrient levels. And also on par with Foliar nutrition of 19:19:19 @ 2% at 30 and 45 DAS + FYM 6 t/ha) In grain yield (7.65 q /ha) and straw yield (14.52 q/ha) recorded significant higher with application of T5 and also on par with RDF of crop + FYM 6 t/ha) over the other treatments levels. The gross returns, net returns and BC ratio were also higher with the same treatments (Rs37865, Rs.21365 and 2.39 respectively) as compared to all other treatments and absolute control.

Influence of nutrient management practices and varieties on the productivity and economics of maize (Zea Mays L.) and their residual effect in Gobhi Sarson (Brassica Napus L.) under rainfed conditions

ABSTRACT An experiment was conducted to study the effect of nutrient management and varieties of maize on productivity and economics and their residual effect on succeeding gobhi sarson crop. Four nutrient management treatments (viz. site-specific nutrient management, SSNM; recommended fertilizer dose, RFD; 50% RFD and farmer’s practice) were applied to five varieties of maize (viz. PAC 740, PMZ-4, PSCL 4640, HQPM 1, and BISCO 855) during the kharif seasons of 2012 and 2013 at Palampur. The residual effects of fertilizers were studied in succeeding gobhi sarson. The SSNM-based nutrient application in maize significantly increased crop dry matter, cobs/ha, grain yield, nitrogen, phosphorus and potassium (NPK) uptake, succeeding gobhi sarson seed yield, maize grain equivalent yield, net return, profitability, and B:C. The SSNM-based nutrient application in maize resulted in 4.2–4.6% and 32.6–46.2% higher system productivity and Indian Net Rupee (INR) 4,507–4,926 and INR 28,837–30,078 higher net returns of over recommended fertilizer application and farmer practice, respectively. SSNM had lowest productivity cost of INR 3.1/kg grain. Apparent NPK productivity (62.4 kg grain/kg NPK applied) was highest under 50% RFD. BISCO 855 was earliest in silking with bolder grain. PMZ-4 and PSCL 4640 gave significantly higher dry matter, cob number, grain and stover yield, apparent NPK and physiological productivity, maize equivalent yield, net return and B:C, and lower productivity cost. Gobhi sarson seed yield was not significantly affected by preceding maize varieties. For higher system productivity and income from the maize-gobhi sarson, SSNM with PMZ 4 or PSCL 4640 varieties of maize must be adopted.

Effect of Nutrient Management on δ15N, δ13C Isotopes and Enzyme Activities in Higher Altitude Agricultural Soils, India

This research under field experimental conditions was conducted to evaluate the effects of nutrient management on δ15N, δ13C isotopes and soil enzyme activities in higher altitude agricultural soils. Three composite soil samples were collected from each of the organic management (ORG), inorganic management (IM) and control (CON) experimental plots from the fall of September 2017 to August 2018. δ15N was significantly higher (8.95‰) in ORG soils compared than IM (8.07‰) and CON (6.36‰). In contrast δ13C was higher (-16.49‰) in CON soils compared to IM (-19.26‰) and ORG (-19.8‰). Soils from ORG had significantly higher levels of total N, total C, total S, organic carbon, available N, extractable P, Soil organic carbon stock, exchangeable K and enzyme activities compared to IM and CON. Urease, β – glucosidase, acid phosphatase, alkaline phosphatase, invertase, cellulase and dehydrogenase activities were significantly increased the δ15N and reduced δ13C in agricultural soils. Our results suggested that organic management had improved the δ15N, plant available nutrients and soil enzyme activities. Stable δ15N and δ13C isotopes are good indicators to monitor the soil health and C and N biogeochemical cycles in higher altitude agricultural soils.

Effect of nutrients management on yield attributes of fodder beet under sandy soil conditions.

The effect of chemical fertilizer (NK) and humic acid on top length, root length, root diameter, leaf area per plant, top fresh & dry weight and root fresh & dry weight of fodder beet (Beta vulgaris L. c.v voroshinger) was carried out in the Experimental Farm of Agriculture Faculty, South Valley University at Qena during the two seasons of 2016/2017 and 2017/2018 on sandy soil. A field experiment was conducted using a randomized complete block design in split- plots arrangement with three replications. Humic acid treatments were arranged in main plots while, fertilization treatments (NK) were allocated in sub-plots. The highest mean values of most previous traits were obtained from fodder beet plants which were supplemented by soil application of humic acid and 90kg N+100kg K2O /fed. (H1F9). Based on these results, it is recommended to adding humic acid on soil and fertilization with NK by 90 Kg N + 100 kg K2O per Feddan for fodder beet under similar soil and climate conditions.

Yield response of sweetpotato (Ipomoea batatas L. Lam) to soil solarization and nutrient management under micro-fertigation technique

Sweet potato production is affected with different problems related to incidence of insect pests and diseases, and erratic climatic conditions which hamper the production by 41.33 to 42.22 percent, respectively. Thus, this study which was conducted aimed to determine the effects of soil solarization and micro-fertigation technique on the yield performance of sweet potato; determine the effect of nutrient management under micro-fertigation technique and evaluate the profitability of sweet potato production as influenced by soil solarization and micro-fertigation technique. This was laid out in split plot arranged in a Randomized Complete Block Design (RCBD) adopting three replications with two mainplots and four subplots. The main plot was designated as M1 – with solarization and M2 – without solarization while subplot treatments were designated as follows: S0 – no fertilizer application (control); S1 – conventional application of inorganic fertilizer; S2 – application of inorganic fertilizer through micro-fertigation and S3 - application of Aloe vera bio-organic liquid fertilizer through micro-fertigation. Soil solarization controlled weed population and produced higher total root yield of sweet poptato. Adoption of micro-fertigation technique increased root yield and produced larger and less-damaged roots. Morever, the application of aloe vera as bio-organic fertilizer enhanced higher root productivity and contributed lesser reduction of root yield caused by pests and diseases. Thereby, soil solarization with aloe vera application under micro-fertigation technique was the best option for sweet potato production to enhance root productivity, income and protection of plants from pest and disease damage especially in areas with unstable climatic conditions.

Effect of nutrient management through organic sources on yield and quality of garlic (Allium sativum L.) under organic farming

An experiment was conducted on medium black calcareous soil atJunagadh (Gujarat) to evaluate FYM, biofertilizers and botanicals for organic cultivation of garlic (var. Gujarat Garlic 4) during Rabi season of 2017-18 and 2018-19. The results revealed that the growth parameters, yield attributes and yield were significantly influenced by the various organic treatments in both years and pooled results. The experimental results revealed that the application of FYM @ 10 t/ha + Panchgavya as foliar spray @ 3% at 30 and 60 DAS (T1) produced significant effect on growth parameters, yield attributes and yield obtained significantly higher bulb yield (68.04, 71.28 and 68.99 q/ha) and straw yield (8.63, 9.47 and 8.87 q/ha) in 2018, 2019 and pooled results, respectively.

Effect of Nutrient Management on Two Varieties (Hybrid and Local) of Maize in Western Inner Terai of Nepal

In Nepal, the productivity of maize is very low in comparison with developed countries. The use of hybrid varieties with proper nutrient management helps to unlock the high yielding potential of maize. So, the experiment was conducted at Fulbari, Dang, Nepal from June 30, 2019 to October 16, 2019 to find the yield performance of two maize varieties (Local and Hybrid) under different nutrient management. The study was conducted in factorial randomized complete block design with three replications and eight treatments. Treatments consist of different combinations of two maize varieties (Local and hybrid) and four different nutrient management practices. Significant effects of Nutrient management were observed on plant height, l
 eaf area index (LAI), kernels per row, kernels per cob maize, test weight, biological yield, economic yield and harvest index of maize. Similarly, significant effects of varieties was observed on plant height, leaf number, LAI, cob length, kernel rows per cob, kernels per kernel row, kernels per cob maize, test weight, biological yield, economic yield and harvest index of maize. Interaction effect of Nutrient management and varieties was found significant on LAI, kernel rows per cob, kernels per kernel row, kernels per cob maize, test weight, biological yield, economic yield and harvest index of maize. The overall performance of hybrid maize under Leaf color chart (LCC) based nutrient management was found better than other treatments. Therefore, production of Hybrid maize under LCC based nutrient management is suggested.
 Int. J. Appl. Sci. Biotechnol. Vol 8(2): 191-198

Effect of Nutrient Management on Growth, Productivity and Quality of Oats with Special Emphasis on Zinc & Boron

Effect of Nutrient Management on Growth, Productivity and Quality of Oats with Special Emphasis on Zinc & Boron

Combined Effects of Nutrient Management on Nutrient Content and Uptake of Transplant Aus Rice (BRRI Dhan48)

A field experiment was conducted at Sutiakhali, Mymensingh for crop production and chemical analysis was performed at Department of soil science, Bangladesh Agricultural University, Mymensingh to see the combined effect of nutrient management on nutrient content and uptake of Transplant Aus rice (BRRI dhan48) during march to july 2015 following Randomized Complete Block Design with four replications. The treatments were T1: RD (N75 P12 K45 S9), T2: STB (N74 P11 K36 S7), T3: INM (N54 P5 K27 S5+ CD @ 5.0 t ha−1), T4: Farmer’s practice (N69 P30 K37), and T5: Control (no fertilizer). The NPKS content and uptake by BRRI dhan48 were also influenced significantly due to combined use of manure and fertilizers. The maximum N, P, K and S uptake by grain (35.55, 6.99, 15.20 and 3.38 kg/ha respectively) were obtained from the application of Integrated Nutrient Management. The minimum N, P, K and S uptake by grain (20.08, 3.64, 8.35 and 1.74 kg/ha respectively) were found from T5: Control. Similarly, The maximum N, P, K and S uptake by straw (3.38, 5.43, 99.25 and 7.37 kg/ha respectively) were found from T3: INM. The minimum N, P, K and S uptake by straw (1.74, 2.67, 49.70 and 3.87 kg/ha respectively) were obtained from T5 (Control). The performance of the treatment T3 was better than T1, T2, T4 and T5 in nutrient content and uptake of BRRI dhan48. Considering nutrient content and uptake, the application of chemical fertilizers in combination with manure based on INM could be recommended for BRRI dhan48 production in aus season.

Effect of nutrient management on yield attributes and yield of milk thistle (Silybum marianum)

The objective of this experiment is to determine the effect of nitrogen fertilizer dosses on the yield attributed and seed yield of silybum during rabi season 2018-19 towards development of new agrotechnology. For this purpose, different fertilizer dosses were evaluated and their responses were ascertained with respect to yield attributes and economic yield of silybum. The field experiment was conducted to study the effect of four treatments of different nitrogen doses viz., T1 (control), T2 (NPK @ 80:80:60/ha), T3 (NPK @ 100:80:60/ha) and T4 (NPK @ 120:80:60/ha kg NPK ha-1) with the spacing 50*50cm row to row & plant to plant respectively with three replicates. The result showed significant influence of higher nitrogen doses T4 (NPK @ 120:80:60/ha kg NPK ha-1) produced higher economic seed yield (9.35 q/ha-1 ­­) followed by T3 (NPK @ 100:80:60/ha) NPK produced (8.50 q/ha-1 ­) and T2 (NPK @ 80:80:60/ha) produced (6.60 q/ha­­­) seed yield, and lowest seed yield (2.55 q/ha) were recorded in T1(control) without fertilizer. The observation recorded revealed highest economic yield attribute like; plant height (288.00 cm), canopy ( 102.1 * 99.2 cm), number of leaf (10) and highest seed yield (9.35 q/ha) were recorded in T4 application of NPK @ 120:80:60/ha kg NPK ha-1 as compared to other treatments. Therefore, recommended application of NPK @ 120:80:60/ha kg NPK ha-1 is recommended for quality cultivation of silybum to get higher economic yield and return.

Growth, Productivity, Nutrient uptake and Economics of Hybrid maize (Zea mays L.) as Influenced by Precision Nutrient Management

The field experiment was carried out at the farmer’s field in Chella Kamarpara village, Chella G.P, Chella Mouza of Illambazar Block, Birbhum, West Bengal which is situated at 23o 37.374’latitude and 87o37.170’E longitudes with an average altitude of 58.9 m above mean sea level under sub-humid, sub-tropical belt under the prevailing climatic conditions of West Bengal during the Kharif season of 2013. The experiment consisted of the five levels of nutrient management i.e., N1: State recommendation (150:75:75), N2: Nutrient expert (NE) recommendation (120:34:51), N3: Farmers practices (80:40:40), and N4: Basal application of 50:75:75 with split N application on basis of LCC (leaf colour chart), N5:control and two level of varieties viz. V1: Sona and V2: Rajkumar, the total number of treatment combinations are ten, which were replicated thrice and was laid out in factorial randomized block design (FRBD). To evaluate the effect of nutrient management on the growth, productivity and economics of hybrid maize cultivation. Nutrient management has played an important role in achieving sustainability of grain production. The chemical fertilizer consumption coupled with their limited production, fertilizer cost, soil health and pollution have given rise to interest in precision nutrient management tools. It was the found that the Growth, productivity, nutrient uptake and economics of hybrid maize (Zea mays L.) as influenced by precision nutrient management which was significantly affected by different level of nutrient management and varieties. Whereas, LCC based application of fertilizer gave better result than all other treatment but it was also statistically at par with Nutrient expert based recommendation.

Forage yield of orchard grass (Dactylis glomerata L.) under different fertility levels on a karewa upland of Kashmir Himalaya

The Union Territory of Jammu and Kashmir, with less than 4 % of its cultivable area under fodder crops, produces green fodder that is 30-40 % deficient than the demand. This shortage of fodder is the major cause of low productivity of the livestock in the hilly areas. Oat and berseem are the major fodder crops that are grown on about 25,000 hectares of land. Orchard grass or cocksfoot (Dactylis glomerata L.) is one of the important temperate perennial grasses with high productivity, forage quality, cold, drought and shade tolerance. Scanty information is available regarding the effect of nutrient management on forage productivity of orchard grass. Therefore, different fertility levels were evaluated to see the effect on different growth parameters and yield of Dactylis glomerata L. The study consisted of eight treatments: T1= NPK @ 100, 60, 40 kg/ha, T2= NPK @ 80, 45, 30 kg/ha, T3= NPK @ 60, 30, 20 kg/ha, T4= NPK @ 75 % 0f T1+ 25 % organic, T5= NPK @ 75 % of T2+ 25 % organic, T6= NPK @ 75 % of T3+ 25 % organic, T7= FYM @ 20 t/ha and T8= control (No fertilizer). Highest plant height (119.67 cm), number of tillers (484.33/m row), leaf-stem ratio (0.81), green fodder yield (21.43 t/ha) and dry fodder yield (7.97 t/ha) were recorded in the treatment T1 (NPK @ 100, 60, 40 kg/ha) followed by T2 and T4. Higher plant height, tiller number, leaf-stem ratio and consequently green and fodder yield in T1, T2 and T4 may be attributed to positive effect of fertilization particularly nitrogen and higher responsiveness of orchard grass to fertilization.

Effect of nutrient management through organic sources on quality, post-harvest soil nutrient and economics fenugreek (Trigonella foenum-graecum L.)

Effect of nutrient management through organic sources on quality, post-harvest soil nutrient and economics fenugreek (Trigonella foenum-graecum L.)

Growth, productivity and nutrient uptake of aerobic rice (Oryza sativa L.) as influenced by different nutrient management practices

A field experiment was undertaken to study the effect of nutrient management on rice cv. Puspa (IET-17509) during pre-kharif season of 2013 and 2014. The experiment was conducted at Rice Research Station, Bankura with eleven different nutrient management practices i.e., N1 = N, P2O5, K2O @ 60, 30, 30 kg ha-1 (RDF);N2 = RDF + Vermicompost @ 2.5 t ha-1; N3 = RDF + FYM @ 5 t ha-1 ; N4 = FYM @ 5 t ha-1, N5 = Vermicompost @ 2.5 t ha-1 ; N6 = RDF + glyricidia (well decomposed) as green manure @ 3 t ha-1; N7 = RDF + ZnSO4 @ 20 kg ha-1 N8 = RDF + borax @ 2 kg ha-1 ; N9 = RDF + Vermicompost @ 2.5 t ha-1 + ZnSO4 @ 20 kg ha-1 ; N10 = RDF +Vermicompost @ 2.5 t ha-1 + borax @ 2 kg ha-1 ; N11 = RDF + Vermicompost @ 2.5 t ha-1 + ZnSO4 @ 20 kg ha-1 + borax @ 2 kg ha-1 respectively in randomized block design comprising of three replications. The result of experiment revealed that rice plot fertilized with the combination of NPK @ 60:30:30 + VC + ZnSO4@ 20 kg ha-1 + borax @ 2 kg ha-1 recorded the highest grain yield of 4.45 t ha-1 which was 56.69 % higher (2.84 t ha-1) than the FYM treated plot. Organic substitution by FYM and vermicompost (VC) had failed to register the significant impact on growth, yield and nutrient uptake. Nutrient uptake and residual nutrient status was also highest in NPK @ 60:30:30 kg ha-1 + VC @ 2.5 t ha-1 + ZnSO4 @ 20 kg ha-1+ borax @ 2 kg ha-1 fertilized plot.

Effect of nutrient management on growth, productivity and economics in rice based cropping system in lateritic soil of West Bengal

The experiment was conducted during 2014-2015 and 2015-2016 at farmers’ field situated at Binuria village (23 o40’N and 87 o37’E) of Birbhum district of West Bengal under the red and lateritic belt of West Bengal.The experiment was laid out in Randomized Block Design with three replication and twelve treatments in both during kharif and boro season. The plot size was 5m x 4m and the treatment combinations are T1-N80P40K40Zn25S20, T2-N40P40K40Zn25S20, T3-N0P40K40Zn25S20, T4-N80P20K40Zn25S20, T5-N80P0K40Zn25S20, T6-N80P40K20Zn25S20, T7-N80P40K0Zn25S20, T8-N80P40K40Zn12.5S20, T9-N80P40K40Zn0S20, T10-N80P40K40Zn25S10, T-11,N80P40K40Zn25S0 and T12 -Control where as in boro season the treatment combinations are T1-N120P60K60Zn25S20, T2-N60K60Zn25S20, T3-N0K60Zn25S20,T4-N120P30K60Zn25S20,T5-N120P0K60Zn25S20, T6-N120P60K30Zn25S20, T7 N120P60K0Zn25S20, T8-N120P60K60Zn12.5S20,T9-N120P60K60Zn0S20,T10-N120P60K60Zn25S10,T11-N120P60K60Zn25S0, and T12- Control. The high yielding varieties (HYV) rice during Kharif season was MTU 7029 (Swarna) and hybrid variety used in Boro season was Arize 6444 GOLD. The study concludes that application of N80P40K40Zn25S20 (T1) during kharif and N120P60K60Zn25S20 (T1) in boro season during the two season of experimentation was essential for improving growth attributes, yield components and productivity of high yielding variety (HYV) and hybrid rice. The treatments positively influenced the crop efficiency factors, improved physico-chemical properties and fertility status of the soil and paid highest gross and net returns from the rice cultivation. The study suggests the application of ample dose of fertilizer for better growth, higher productivity, profit and sustainability of rice in the lateritic soil of west Bengal.

Effect of nutrient management on growth, flowering and flower yield of tuberose (Polianthes tuberose L.) under Chhattisgarh plain condition

The present investigation was conducted in the year 2016-17 at the Department of Floriculture and Landscape Architecture, IGKV, Raipur, Chhattisgarh for the effect of integrated nutrient management on growth, flowering and flower yield of tuberose. Ten treatment combinations of different fertilizer and organic manure nutrients were comprised with three replications. Result showed the significant result and the maximum plant height, leaf length, fresh weight, dry weight, number of florets spike-1, length of spike-1, length of rachis and flower yield were recorded under T9 (75% RDF + FYM @ 3.5 t ha-1 + Vermicompost @ 1.5 t ha-1 + Poultry manure @ 2 t ha-1) followed by T7 (50% RDF + FYM @10 t ha-1 + Poultry manure @ 2 t ha-1). The maximum number of leaves plant-1, and diameter of floret were found under T7 (50% RDF + FYM @ 10 t ha-1 + Poultry manure @2 t ha-1) whereas the weight of 100 florets was recorded maximum under T8(50% RDF + Vermicompost @ 5 t ha-1 + Poultry manure @ 2 t ha-1).