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一、前言茶树为多年生作物,它的根系深入土中,有很强的吸收土壤中所含各种养料的能力,虽然引起各种元素的缺少症候还不很多,但由于几年来茶叶需要量的增加从而对茶叶增产用的氮肥亦相应地增多。而无机肥料中一般以施氮肥为主,其他磷肥,鉀肥则少用。再则堆肥,厩肥等的施用量亦較少,唯一的有机质肥料来源是鋪青草和稻草,但在进行中要求全面鋪草亦有困难。茶叶的采摘一般年約三次(春茶、夏茶、秋茶)。及当“青叶收量約計为300貫”,由于土壤肥力的不断消耗,最近发现有
First, the foreword Tea tree is a perennial crop, its roots deep into the soil, there is a strong ability to absorb all kinds of nutrients contained in the soil, although caused by the lack of various elements of the disease is not yet many, but due to the amount of tea required in recent years As a result, the nitrogen fertilizer for increasing the yield of tea is correspondingly increased. The inorganic fertilizers generally nitrogen-based fertilizer, other phosphate fertilizer, potash is less used. In addition, compost, manure, etc. are also applied in small quantities. The only source of organic fertilizer is paved grass and straw, but it is also difficult to conduct full-scale laying in progress. The general picking of tea is about three times a year (spring tea, summer tea, autumn tea). And when “Aoba leaf harvest is about 300 consistent”, due to the constant depletion of soil fertility, it has recently been found that there are