黑龙江八一农垦大学学报
黑龍江八一農墾大學學報
흑룡강팔일농은대학학보
JOURNAL OF HEILONGJIANG AUGUST FIRST LAND RECLAMATION UNIVERSITY
2014年
1期
32-35
,共4页
张士兵%汪春%张欣悦%李连豪
張士兵%汪春%張訢悅%李連豪
장사병%왕춘%장흔열%리련호
育秧土%含水率%拟合曲线
育秧土%含水率%擬閤麯線
육앙토%함수솔%의합곡선
rice seedlings soil%moisture content%fitting curve
现采用TK100多功能水分测定仪对水稻育秧土进行水分测定。通过SPSS21.0软件,以TK100多功能水分测定仪测定的含水率为自变量,实际含水率(烘干法测得育秧土含水率)为因变量进行曲线拟合,并对拟合出的三种方程相关系数R、回归显著性检验的F值以及F值的显著水平P值进行对比分析,得出最优拟合曲线方程y=2.84-0.05x+0.00725x2。在验证试验中,拟合函数计算出的含水率与烘干法测得的含水率配对t检验结果无显著差异,拟合曲线恰当、准确。
現採用TK100多功能水分測定儀對水稻育秧土進行水分測定。通過SPSS21.0軟件,以TK100多功能水分測定儀測定的含水率為自變量,實際含水率(烘榦法測得育秧土含水率)為因變量進行麯線擬閤,併對擬閤齣的三種方程相關繫數R、迴歸顯著性檢驗的F值以及F值的顯著水平P值進行對比分析,得齣最優擬閤麯線方程y=2.84-0.05x+0.00725x2。在驗證試驗中,擬閤函數計算齣的含水率與烘榦法測得的含水率配對t檢驗結果無顯著差異,擬閤麯線恰噹、準確。
현채용TK100다공능수분측정의대수도육앙토진행수분측정。통과SPSS21.0연건,이TK100다공능수분측정의측정적함수솔위자변량,실제함수솔(홍간법측득육앙토함수솔)위인변량진행곡선의합,병대의합출적삼충방정상관계수R、회귀현저성검험적F치이급F치적현저수평P치진행대비분석,득출최우의합곡선방정y=2.84-0.05x+0.00725x2。재험증시험중,의합함수계산출적함수솔여홍간법측득적함수솔배대t검험결과무현저차이,의합곡선흡당、준학。
The TK100 multi-functional moisture meter was used to measure rice seedlings soil moisture. The moisture content was measured by TK100 multi-functional moisture meter as independent variable,and the actual moisture content (the moisture content measured by drying)as dependent variable was realized curve fitting by SPSS21.0 software. Through the comparative analysis of the three equations’correlation coefficient R,F value of significance regression test and P value of F value significant levels,which drew the conclusion that the optimal fitting curve equation was y=2.84-0.05x+0.007 25x2. In validation tests,paired-samples t test results had no significant difference between moisture content by the fitting function calculating and that of drying measurement,and the fitting curve equation was appropriate and accurate.