热研7-33-97幼龄开割树七天一刀割制的研究

Rubber Tapping System of D/7 for Young Rubber Plantations of Clone Reyan 7-33-97 Under Tapping

以幼龄开割树热研7-33-97为对象,以常规的S/2d/4割制为对照,研究了S/2d/7对干胶产量及其他副性状的影响。结果表明:d/7割制增加了人均承割株数,增幅为64.09%,3年平均株产干胶减幅7.17%,株次产增加35.71%,人均干胶产量提高52.31%,人均收入增加53.84%。以S/2d/7+ET0.5%4刀为一个涂药周期的平均株产干胶和株次产均高于以S/2d/7+ET0.3%2刀为一个涂药周期的处理。结果表明超低频割胶能有效缓解胶工短缺的压力,稳定胶工队伍。

Young rubber plantations of Clone Reyan 7-33-97 under tapping were tapped under a tapping system of S/2 d/7 with S/2 d/4 as control to observe the effect of d/7 on the dry rubber yield and other secondary characteristics. The results showed that the d/7 tapping system increased the number of rubber trees under tapping per tapper by 64.09%, decreased rubber yield per tree by 7.17%, increased rubber yield per tapping by 35.71%, increased rubber yield per tapper by 52.31%, and increased income per tapper by 53.84%. The S/2 d/7 ET 0.5% treatment with ET painting every 4 tappings as a cycle gave higher dry rubber yield per tree and per tapping than the S/2 d/7 ET 0.3% treatment with ET painting every 2 tappings as a cycle. These results showed that tapping at very low tapping frequency(d/7) can effectively alleviate the shortage of tappers and stabilize the tapper team.