基于TechnoGIN的果树作物养分因子效应分析

以浦江县水果作物生产调查数据为基础,建立5个土地单元,6个技术水平,产生TechnoGIN效应如下:1)不同土地单元、不同技术水平下,果树作物所需求的N、P、K养分并不相同;2)TechnoGIN计算出,不同土地单元,不同技术水平,果树作物产生淋溶和气化量也不同,产量高,N的需求量大;同产量下,N投入越多,产生淋溶和气化也越多;相同N投入,产量越高产生淋溶和气化越少;3)TEF技术下作物养分施用量与当地试验养分施用量十分接近;4)专家评判TechnoGIN是系统养分得失计算的一个很好的工具,可以作为农业环境评价的一个重要评价体系。

A TechnoGIN-based analysis of nutrient coefficients on fruit crops

Based on the analysis of nutrient coefficient in the fruit orchards by TechnoGIN in Pujiang county, we have set up five land units and six technology levels. The analysis revealed that: firstly, fruit crops have different demanding level to N/P/K at different technology level in different land unit; secondly, the quantity of the leaching and the vaporization by the fruit trees could be calculated by using TechnoGIN, which were different at different technology levels in various land unit. Fruit crops need more N, provided the yield will be high. N is more needed than the quantity of leaching and vaporization by the fruit trees; thirdly, the nutrient quantity that fruit crop needed at technology level of TEF was close to the traditional used amount in the orchards. Fourthly, expert appraisal is very good in evaluating agricultural environmental infection.