Optimizing Irrigation Requirement of Soil Test-Based Fertilizer Recommendation Models for Targeted Yields of Cabbage and Broccoli in a Typic Fluvaquept Soil

2021 ◽  
pp. 729-747
Author(s):  
Kallol Bhattacharyya ◽  
Agnibha Sinha ◽  
Sudip Sengupta ◽  
Shubhadip Dasgupta ◽  
Sanmay Kumar Patra ◽  
...  
Keyword(s):  
Soil Test ◽  
Irrigation Requirement ◽  
Fertilizer Recommendation

scholarly journals Online Fertilizer Recommendation System (OFRS): A Step Towards Precision Agriculture And Optimized Fertilizer Usage By Smallholder Farmers In Bangladesh

2020 ◽  
Vol 1 (4) ◽  
Author(s):  
M. A. Hossain ◽  
M. N. A. Siddique
Keyword(s):  
Precision Agriculture ◽  
Recommendation System ◽  
Smallholder Farmers ◽  
Fertilizer Application ◽  
Soil Test ◽  
Total Production ◽  
Soil Database ◽  
Fertilizer Recommendation ◽  
Fertilizer Recommendations ◽  
Input Cost

The recent progression and Green Revolution (approx. between the 1990s-2010s) in agriculture of Bangladesh resulted in an increase of total production despite yield-gap to ensure food security. But agriculture in Bangladesh is still backed-up by higher use of inputs (agrochemicals-fertilizers, pesticides; modern varieties, irrigation etc.) and inversion tillage. This conventional agrochemical-based smallholder agriculture may lead to soil and environmental degradation, soil acidification, and a decline in soil fertility. Therefore, it is significant to optimize input application in intensive agriculture, especially fertilizers. This paper introduces the potential online facilities of generating online fertilizer recommendations for smallholder farmers in Bangladesh to ensure proper usage of fertilizers and enable sustainable agricultural production. We also highlighted how the usage of fertilizers increased with an increase in total production over time. But the sustainability of production in the years to come still remain challenging. With the aim of sustainable crop production, reduction in the misuse of fertilizers and reduction of input cost by optimizing the present pattern of excessive fertilizer application, the Soil Resource Development Institute (SRDI) provides location-specific fertilizer recommendation through both the manual and soil test based interpretation of plant nutrients: soil database in Upzazila Nirdeshika and static laboratory soil analysis. Recently, SRDI developed web-based software named Online Fertilizer Recommendation System (OFRS). The system is capable of generating location-specific fertilizer recommendations for selected crops by analyzing the national soil database developed by this governmental institute. The software requires farmer field location, respective soil and land type, and crop type and variety information to generate crop-specific instant fertilizer recommendation. It was observed that by using fertilizer according to the recommended dose calculated on the basis of soil test values, farmers could harvest approx. 7-22% higher yield of different crops over usual farmers practice. If this system can be popularized and disseminated by effective agricultural extension, this would immensely contribute to the promotion of precision agriculture, input cost reduction and it would certainly enable us to optimize fertilizer application by the smallholder farmers in Bangladesh.

scholarly journals TINGKAT KESUBURAN DAN REKOMENDASI PEMUPUKAN N, P, DAN K TANAH SAWAH KABUPATEN BENGKULU SELATAN

Jurnal Solum ◽  
2012 ◽  
Vol 9 (2) ◽  
pp. 61
Author(s):  
Nurmegawati Nurmegawati ◽  
W Wibawa ◽  
E Makruf ◽  
D Sugandi ◽  
T Rahman
Keyword(s):  
Soil Fertility ◽  
Paddy Soil ◽  
Ph Value ◽  
Rice Variety ◽  
Fertilizer Application ◽  
Soil Samples ◽  
Soil Test ◽  
Fertility Level ◽  
Fertilizer Recommendation ◽  
Test Kit

An alternatif way to determine soil fertility level as well as to recommend fertilizer application is by using soil test kit. The kit can measure P and K status of soils as well as the pH value. The research was aimed to evaluate soil fertility level of paddy soil and to determine fertilizer recommendation for rice (variety ? IR64) having 5 t mill-dry seeds/ha at the soil in Kedurang Ilir and Seginim, South Bengkulu. Soil samples were collected in 24 villages in the area, then they were analyzed using the Test Kit. The results showed that (1) fertility level of paddy soil in Seginim was higher than that in Kedurang Ilir, (2) there were 4 packages of fertilizer doses (250- 100-100; 200-75-100; 250-50-100; 200-100-100 kg/ha for Urea-SP36-KCl, respectively) recommended in Kedurang Ilir, (3) there were 7 packages of fertilizer doses (250-100-100; 200-50-100; 250-75-100; 200-100-75; 200-75-100; 200-100-100; 250-50-100 kg/ha for Urea, SP36, and KCl, respectively) in Seginim.Key Words: paddy soil, fertility, soil test kit

scholarly journals Extrapolation of post-harvest soil test values in barnyard millet-based cropping sequence through multivariate analysis

2021 ◽  
Vol 13 (4) ◽  
pp. 1545-1551
Author(s):  
R. Selvam ◽  
R. Santhi ◽  
S. Maragatham ◽  
C.N. Chandrasekhar ◽  
Patil Santosh Ganapathi
Keyword(s):  
Tamil Nadu ◽  
Calcareous Soils ◽  
Multiple Regression Model ◽  
Soil Test ◽  
Available Nitrogen ◽  
Barnyard Millet ◽  
Post Harvest ◽  
Fertilizer Recommendation ◽  
Cropping Sequence ◽  
Phosphorus And Potassium

The soil test value is based on the soil test-based fertilizer prescription/ recommendation equation. Each crop harvesting after the next crop is necessary to analyze the soil. Therefore, it is necessary to develop an alternative technique to predict postharvest soil tests after the harvest of every crop. For that a study was conducted in mixed black calcareous soils at Tamil Nadu agricultural University, Coimbatore to develop the post-harvest prediction equations for available nitrogen, phosphorus and potassium in barnyard millet cropping sequence based on a multiple regression model by considering post-harvest soil test value as the dependent variable and initial available nutrients, fertilizer doses and crop yield or crop nutrient uptake as an independent variables. The developed model was validated by computing R2 value, RMSE (root means square error), RE (relative error), and the ratio of performance to deviation (RPD) and the developed model was found to be valid.  Using the validated model, post-harvest soil test values were predicted. A fertilizer recommendation was made for blackgram based on predicted post-harvest soil test values in the barnyard millet-blackgram cropping sequence. The predicted soil test values were compared with actual soil test values and it revealed that the developed model is fairly accurate and best-fitted with more precision. The predicted post-harvest soil test values of barnyard millet could be used in order to prescribe fertilizer for desired yield targets for subsequent crops.

Soil test base fertilizer recommendation by soil fertility rating for major field crops and vegetables in Uttar Pradesh for Food Security of India

2021 ◽  
Vol 21 (1) ◽  
pp. 110-116
Author(s):  
Ashok Kumar ◽  
B.P. dhyani ◽  
Satendra Kumar ◽  
Yogesh Kumar ◽  
S.P. Singh ◽  
...  
Keyword(s):  
Food Security ◽  
Soil Fertility ◽  
Uttar Pradesh ◽  
Soil Test ◽  
Major Field ◽  
Fertilizer Recommendation ◽  
Test Base ◽  
Field Crops

scholarly journals Application of Mitscherlich-Bray equation to formulate fertilizer recommendations for sweetpotato in Leyte, Philippines

2020 ◽  
pp. 30-42
Author(s):  
Luz Asio ◽  
Nenita de la Cruz
Keyword(s):  
Soil Fertility ◽  
Maximum Yield ◽  
The Philippines ◽  
Soil Test ◽  
Root Yield ◽  
Fertilizer Recommendation ◽  
Theoretical Maximum ◽  
Fertilizer Recommendations ◽  
Npk Fertilizer ◽  
Fertilizer Rates

Until now, no studies have been conducted in the Philippines on the use of the Mitscherlich-Bray equation to formulate NPK fertilizer recommendation for sweetpotato. This study used the Mitscherlich-Bray equation to formulate NPK requirements for sweetpotato. Independent experimental set-ups of N (7 application levels), P (6 levels), and K (9 levels) arranged in RCBD with three replications were simultaneously conducted. Theoretical maximum yield, NPK constants c, and c, NPK fertilizer recommendations for sweetpotato at different soil fertility levels, and optimum fertilizer rates were calculated. Fertilizer recommendations for a common range of soil test values were developed but needed further field verification trials. Theoretical maximum yields determined by the Mitscherlich-Bray equation were 19.05, 12.66, and 14.88t ha-1 for NPK, respectively. The study showed that inherent soil fertility is vital in the development of fertilizer recommendation for sweetpotato not only to increase root yield but likewise to increase overall productivity. It showed that 30, 50, and 60 percent of the maximum possible yield was attributed to the inherent soil N, P, and K, respectively. N, P2O5, and K2O recommendations for sweetpotato were computed based on a common range of soil test values ranging from 50 to 300, 5to 40, and 200 to 700kg ha1 NPK, respectively.

Soil test based fertilizer prescriptions through integrated nutrient management using targeted yield approach for rice

2020 ◽  
Vol 57 (2) ◽  
pp. 139-145
Author(s):  
D Mounika ◽  
G Kishore Babu ◽  
M Martin Luther
Keyword(s):  
Grain Yield ◽  
Harvest Index ◽  
Nutrient Management ◽  
Block Design ◽  
Soil Test ◽  
Straw Yield ◽  
Fertilizer Recommendation ◽  
Randomized Block Design ◽  
Agricultural College ◽  
College Farm

A field experiment was conducted at the Agricultural College farm, Bapatla, during kharif and rabi 2017-18 and 2018-19. The experiment was conducted with variety BPT-5204 in a randomized block design with ten treatments and three replications. The maximum Number of panicles m-2, total filled grains panicle-1, test weight, grain yield, straw yield, harvest Index and return per rupee investment were recorded with soil test based fertilizer recommendation with 10 t ha-1 FYM application which was at par with soil test based fertilizer recommendation alone and 7.5 t ha-1 targeted yield recommendation along with FYM (T5 and T10) and RDF with FYM (T6). Grain yield of rice was significantly higher with soil test based fertilizer recommendation with 10 t ha-1 FYM application which was statistically at par with soil test based fertilizer recommendation alone (T2) and 7.5 t ha-1 targeted yield fertilizer recommendation with FYM (T10) compared to the rest of the treatments.

scholarly journals Development of fertilizer recommendation for the cropping pattern potato-boro-T. aman in irrigated medium highland condition under AEZ -9

1970 ◽  
Vol 34 (1) ◽  
pp. 41-49 ◽  
Author(s):  
MR Ali ◽  
DJ Costa ◽  
MA Sayed ◽  
MAH Khan ◽  
JA Abedin
Keyword(s):  
Farming System ◽  
High Yield ◽  
Variable Cost ◽  
Soil Test ◽  
Cropping Pattern ◽  
Marginal Rate ◽  
Floodplain Soil ◽  
Fertilizer Recommendation ◽  
Marginal Rate Of Return ◽  
Organic And Inorganic Fertilizers

The experiment was carried out in the Old Brahmaputra Floodplain soil at the farmer's field of Farming System Research and Development (FSRD) site, Kushumhati, Sherpur under Sherpur district in the medium high land under AEZ-9 for the three consecutive years 2003-06 to determine economic combined dose of organic and inorganic fertilizers for Potato-Boro-T.aman cropping pattern. Six treatment management packages including one farmer's practices, and one fertilizer control were tested. The other four treatments were soil test based (STB) fertilizer dose for moderate and high yield goals (MYG and HYG), STB based fertilizer dose for HYG plus 5 t/ha cowdung (IPNS) and fertilizer dose for Fertilizer Recommendation Guide'97 (FRG '97). Average of three years' results showed that recommended fertilizer dose based on the FRG '97 was more economic than all other fertilizer doses for the whole pattern. But the treatment Integrated Plant Nutrition Systems based on fertilizer management with cowdung for high yield goal produced the maximum grain and straw yields in the first crop. Application of cowdung had no significant effect on the yield of succeeding crops. The variable cost was higher for the treatment consisting of cowdung due to additional cost of cowdung. The highest marginal rate of return 1626% was obtained from recommended fertilizer based on the FRG '97.Key Words: Balanced fertilization; cropping pattern; yield; economicsDOI: 10.3329/bjar.v34i1.5751Bangladesh J. Agril. Res. 34(1) : 41-49, March 2009

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