Recommendation system by: Research project
Preparation of uniform methodology for establishing fertilising plans
A scientific report describing existing fertilization planning recommendations, comparing them to other countries' recommendation systems. Recommendation for a planning method for nutrient fertilization, including estimation of mineral nitrogen in soil. Also includes more open field plants, vegetables and orchards.
Access the recommendation system
Publisher | Research project |
Name | Preparation of uniform methodology for establishing fertilising plans |
Weblink | https://www.google.com/search?q=Vieningos+tr%C4%99%C5%A1imo+plan%C5%B3+sudarymo+METODIKOS+PARENGIMAS&client=firefox-b-e&sca_esv=578870548&sxsrf=AM9HkKmmQcQr5uZpT7LhYE7FTpQmEr4VgQ%3A1698946658023&ei=Yt5DZc-MAaWmwPAPgO-ziAU&ved=0ahUKEwjPxazA7aWCAxUlExAIHYD3DFEQ4dUDCA8&uact=5&oq=Vieningos+tr%C4%99%C5%A1imo+plan%C5%B3+sudarymo+METODIKOS+PARENGIMAS&gs_lp=Egxnd3Mtd2l6LXNlcnAiOFZpZW5pbmdvcyB0csSZxaFpbW8gcGxhbsWzIHN1ZGFyeW1vIE1FVE9ESUtPUyBQQVJFTkdJTUFTSLyvAVCeDFizrQFwAXgAkAEAmAHxAaABqheqAQYwLjE4LjG4AQPIAQD4AQL4AQHCAggQABiiBBiwA8ICBRAAGKIEwgIEECEYCuIDBBgBIEGIBgGQBgQ&sclient=gws-wiz-serp |
Countries covered | Lithuania |
Regions covered | Whole country |
Language | Lithuanian |
Crops covered | Wheat, Maize, Potatoes, Vegetables, Other cereals, Brassicas, Other crops |
Nutrients covered | Nitrogen (N), Phosphorus (P), Potassium (K) |
Target soil pH Recommendations based on soil and cropping types | Provided |
Nitrogen | |
Crops for Nitrogen Recommendation | Maize, Potatoes, Wheat |
Nitrogen Analysis Options | Total N, Mineral N |
Soil Nitrogen Assess Method | Lab Analysis |
Factors for estimated Soil Mineral N | |
Soil Nitrogen content measurement | Extraction with KCl; K2SO4; Tiurin method |
Phosphorus | |
Crops for Phosphorus Recommendation | Maize, Potatoes, Wheat |
Soil Phosphorus content measurement | Lab based method |
Phosphorus Sampling Frequency | Every 3-4 years |
Lab analysis method for Phosphorus | Egner - Rim - Domingo (A-L) method |
Potassium | |
Crops for Potassium Recommendation | Maize, Potatoes, Wheat |
Soil Potassium content measurement | Lab based analysis |
Lab analysis method for Potassium | Egner - Rim - Domingo (A-L) method |
Potassium Sampling Frequency | Every 3-4 years |
Potassium Measurement Method | NIR |
Soil available Potassium(Κ) from potash clays | Both soil tests and soil type |
Guidance for minimizing nitrate leaching | Provided |
Crops for which the recommended N rate is adapted depending upon nitrate leaching risk | None |
Nitrogen | |
Dry Springs | Not Considered |
Advice on irrigation for N recommendation | Not Provided |
Spring Crop N content | Not Accounted for |
Accepted methods for assessment of spring crop N content | |
Phosphorus | |
Spring Crop P content | Not Accounted for |
Accepted methods for assessment of spring crop P content | |
Nitrogen | |
Current in season crop N requirement | Estimated |
Basis for N Requirement Estimation | Standard values for crop N content |
Expected yields | Estimated in season N requirement can be adjusted for expected yields |
Basis of crop N requirements | Crop approach, Rotation approach |
Phosphorus | |
Current in season crop P requirement | Estimated |
Basis for P requirement estimation | Standard values for crop P content |
Expected yields | Estimated P requirement can be adjusted for expected yields |
Basis of crop P requirements | Crop approach, Rotation approach |
Potassium | |
Current in season crop K requirement | Estimated |
Basis for K requirement estimation | Standard values for crop K content |
Expected yields | Estimated K requirement can be adjusted for expected yields |
Basis of crop K requirements | Crop approach, Rotation approach |
Crops for which yield adjustments are made | Wheat, Maize, Potatoes |
Adjustments for Potato Recommendations | |
Recommendations on length of growing season, variety, haulm length and/or determinacy groups | Available |
Available adjustments for potatoes | Earliness of potato variety |
Adjustments for nitrate leaching, gaseous N-losses and Ammonia Mitigation | |
N adjustments to account for gaseous N-losses are included for | Not included |
Fertiliser types and additives change recommendation | |
Ammonia mitigation strategies used for manufactured fertilisers | |
Manure application methods used for reducing ammonia emissions | |
Organic materials nutrient content | |
Crop available N for different types of organic material | Calculated |
Organic materials for which crop available N is calculated | Farmyard manure (cattle, goat, pig, sheep, horse, duck), Cattle slurry, Pig slurry, Poultry manure, Digestate, Compost |
Crop available nutrients from organic materials accounted for | Nitrogen (N), Phosphorus (P), Potassium (K) |
Nutrients for which there is an option to input own organic material nutrient analysis | Nitrogen (N), Phosphorus (P), Potassium (K) |
Types of organic materials for which regulation stipulates a sampling requirement | All organic materials |
Guidance on fertilizer application timings | Not Provided |
Guidance on the rate of fertiliser to apply at each timing | Not Provided |
Number of fertilizer N applications in wheat | 3 |
Application number between maize and potatoes | Does not differ |
Number of fertiliser N applications in maize (or potatoes) | |
P & K application frequency in winter wheat | Several times a year |
P & K application frequency between maize and potatoes | Does not differ |
P & K application frequency in maize (or potatoes) | |
Crops with guidance available for the placement of fertilisers | None |