论文部分内容阅读
报道了１９９６ 年海南农垦胶园的土壤养分含量情况。海南农垦胶园肥力普遍偏低。１号区土壤氮素含量较丰富，其它３ 个区土壤氮素含量均较低；４ 号区土壤全磷和速效磷含量都很低；２ 号区、３ 号区全钾含量较高，１ 号区、４ 号区则很低。４ 号区土壤的速效钾都很低；３号区、４ 号区缺硼。垦区胶园土壤速效氮、磷、钾比例极不平衡。结合土壤因素及垦区胶园施肥状况，阐明由于施肥量不足引起胶园土壤肥力降低和科学施肥的重要性。通过２ ａ 的试验表明，根据土壤类型肥力状况及橡胶树营养规律进行配方施肥，在等价格条件下，橡胶专用肥效果明显优于进口复合肥，２ ａ 单株平均增产８ ．４４ ％ 。
This paper reports the soil nutrient content of Hainan Agricultural Reclamation Rubber Plantation in 1996. Hainan reclamation rubber plantation generally low fertility. Soil nitrogen content was more abundant in area 1 than in other three areas, while soil total phosphorus and available phosphorus in soil were low in area 4; total potassium in area 2 and area 3 was higher, 1 District No. 4, District 4 is very low. Area 4 soil available potassium are very low; Area 3, Area 4 lack of boron. Reclamation rubber plantation available available nitrogen, phosphorus and potassium ratio is extremely uneven. Based on the soil factors and the fertilization status of rubber plantation in the reclamation area, the paper explained the importance of reducing the fertility of the rubber plantation and the scientific fertilization due to the insufficient amount of fertilizers. According to the test of 2 years, according to the fertility condition of soil type and the nutrition rule of rubber tree, the special fertilization effect of rubber was obviously better than that of imported compound fertilizer under the same price condition. 44%.