煙草專用高分子聚合物對烤煙生長發(fā)育及產(chǎn)質(zhì)量的影響
Effects of High Molecular Weight Polymer on Growth, Yield
-
摘要: 研究了不同用量煙草專用高分子聚合物對烤煙生長發(fā)育、煙葉產(chǎn)量和品質(zhì)的影響,。結(jié)果表明,，在湘西北煙區(qū)，烤煙每株施用4.5 g煙草專用高分子聚合物效果最好,，能夠促進煙株根系的生長發(fā)育,，增加葉片數(shù),，增粗莖圍,，提高產(chǎn)量15.4%,，增加產(chǎn)值3 345 元/hm2；同時增加土壤保水,、保肥能力,，提高土壤養(yǎng)分的有效性。Abstract: The effects of high molecular weight polymer for tobacco (HMWPT) on growth, yield and quality of flue-cured tobacco were investigated in the Northwestern Hunan. The best result was observed with treatment of 4.5 g HMWPT per plant. HMWPT application improved tobacco root growth, increased effective leaf number and stem width, increased leaf yield 15.4% and output value 3 345 yuan/hm2, increased soil capability of conserving water and nutrients, and soil nutrient availability as well.
下載: