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    The nutrient contents of the surface soil declined,and the declined rate were deferent in different forms in watermelon land and rape land,among which the declined ratio of the hydrolysable nitrogen(9.67% and 7.99%) and rapidly available phosphorus(9.50% and 8.76%) was obvious,while total nitrogen(2.17% and 1.54%) lower and total phosphorus lowest.
    土壤养分含量都有不同程度的下降,其中水解氮与速效磷下降的幅度很大,西瓜地与油菜地水解氮降雨后降幅分别为9.67%和7.99%,速效磷的降幅分别为9.20%和8.76%; 全氮养分降幅很小,西瓜地与油菜地分别为2.17%和1.54%;
    Clay enrichment and nutrient enrichment occurred in sediment,but the enrichment ratio was different: Clay was 1.23 in watermelon land and 1.20 in rape land,total nitrogen and rapidly available phosphorus was higher than 1.3,and total phosphorus and hydrolysable nitrogen was 1.1~1.3.
    流失泥沙具有富集粘粒和富集养分的特性,油菜地与西瓜地粘粒富集率分别为1.23和1.20,两样地全氮与速效磷的富集率都在1.3以上,而全磷和水解氮富集率基本处在1.1~1.3之间。
    Effect of microbiological fertilizer SC27 on the yield and quality of watermelon and balsam pear
    SC27菌剂对西瓜和苦瓜产量与品质的影响初报
    The watermelon fruit yields of K fertilization treatments (K2O 225 kg/ha and 450 kg/ha) were 31139 kg/ha and 32889 kg/ha, higher than that of the control (25556 kg/ha).
    O 225 k的a与施K。 O 450 kg儿a的处理其产量分别到达31139 k吵a和 32889kg/ha,显著高于对照(不施 K肥)25556 kgtha。
    Shenqinmycin, which key component is pheazine-1-carboxylic acid (PCA), has a good effect on prevention and cure pimiento epidemic and watermelon wilt diseases, which is broad-spectrum, high efficiency, low toxicity, good environmental compatibility and low cost.
    新型生物农药申嗪霉素,其有效成分为吩嗪-1-羧酸(phenazine-1-carboxylic acid, PCA),对甜椒疫病和西瓜枯萎病的防治具有广谱、高效、低毒、环境相容性好、生产成本低等显著特点。
    The input/output ratios for watermelon, cucumber, taro and bean were 1 ∶ 4.8~6.7, 1 ∶ 4.4, 1 ∶ 5~6.1 and 1 ∶ 2.8~3.4 respectively.
    其中 ,西瓜、黄瓜、芋头和菜豆增产和获得经济效益总有效率均为 1 0 0 % ,投入产出比分别为 1∶4 .8~ 6.7,1∶4 .4 ,1∶5~ 6.1和 1∶2 .8~ 3.4。
    The yield of mycorrhizal watermelon plants in replant plots after 3-year rotation was 2.7 times greater than that of control.
    轮作 3年后的重茬土壤中定植西瓜菌根苗的产量是对照的 2 .7倍。
    In this case, watermelon ( Citrullus lanatus (Thunb.)
    另以西瓜(Citrullus lanatus(Thunb.)
 

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