Report on Production and Soil Nutrients Variation of Mango Orchard Inerplanted with Leguminous Forage
Aimed to the condition that there exit lots of mountains but less field in Guangxi and the field under most fruit trees is free,the research interplanted high-quality leguminous forage with mango trees,the area of which is designed to be 90 m2,with the neighbouring free field of the same size as contrast and further measuring the production of forage grass,nutrients of fruits,the soil nutrients,analyzing the change in fruit production after interplanting.During the period of interplanting measuring the production thrice,the production of fresh grass in a year reach 24 555.6 kg/hm2 while that of the dry being 5 217.75 kg/hm2 with the ratio being 4.71 ∶ 1.Compared with the contrast,the total acid and total sugar of fruits from trees interplanted with grass decrease by 50％,7.19％while the soluble solid increase by 2.70％and the total nitrogen,the total phosphorus,the total potassium,the available phosphorus and the organic matter of soil in the depth of 10～20 cm increase by 9.89％,66.7％,10.2％,69.05％,24.1％while the available nitrogen,the available potassium and pH decrease by 0.55％,11％,4.3％respectively,the difference being significant(p＜0.05).
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