论文编号:SP024论文字数:8437,页数:16
摘 要
为探讨不同地膜覆盖对春植花生的增产效应，以普通地膜覆盖栽培处理为对照研究了C306常规除草地膜、7－2－6除草地膜、CJ7－3－9除草地膜对仲恺花2号生长发育以及产量的影响。结果表明：在产量方面，CJ7－3－9除草地膜、C306常规除草地膜、7－2－6除草地膜栽培处理每667m2干重平均产量为275.09kg、259.76 kg和257.38 kg，高于普通地膜栽培处理238.31kg，增产都达到显著差异标准。在生长发育形态方面，CJ7－3－9除草地膜栽培处理平均分枝数8.8条，主茎青叶数8.10片，第一侧枝长49.88cm，结荚期叶面积指数3.91，比普通地膜栽培处理多1.5条，多0.62片，长9.63cm，多1.25；相反，其主茎高为35.01cm，比普通地膜栽培处理少12.2cm。在杂草防效方面，三种地膜中CJ7－3－9处理的草株防效平均为96.46％，除草效果最好，C306处理的草株防效平均为93.81％，除草效果次之，这是CJ7－3－9除草地膜处理产量最高、C306常规除草地膜产量次高的原因之一。由于杂草少，种间竞争少，所以花生生长得好，产量就高。这表明在三种除草地膜中，CJ7－3－9除草地膜最适合应用于花生栽培，C306常规除草地膜次之。
关键词：春植花生 除草地膜 农艺性状 产量
Effect of mulching plastic on the Growth and the Output of Spring-planting Peanut
Abstract: A series of experiments were conductedto study the Growth and Output of Spring-planting Peanut_Zhongkaihua No.2 treated with the C306 weeding mulching plastic, 7-2-6 weeding mulching plastic and the CJ7-3-9 weeding mulching plastic. The results showed that: The dry fruit yield per mu of peanut field covered with the CJ7-3-9 weeding mulching plastic, the C306 weeding mulching plastic and the 7-2-6 weeding mulching plastic were 275.09kg, 259.76kg, 257.38kg respectively, while that of the control was 238.31kg, and there was significant differencebetween treatments and controls. In respect of the developing shape, the average branches of Peanut treated with the CJ7-3-9 weeding mulching plastic was 8.8, which was 1.5 more than that of the control; the green leaves of the main stem of the above treatment was 8.10, which was 0.62 more than that of the control; the length of the first side branch of the above treatment was 49.88cm, which was 9.63cm longer than that of the control; the area exponent of the leaves of the above treatment was 3.91, which was 1.25 more than that of the control; but the height of the main stem of the above treatment was 35.01cm, which was 12.2cm lower than that of the control. The weed control efficiency of the CJ7-3-9 plastic achieved 96.46% which was the best between treatments and controls, while the weed control efficiency of the C306 plastic achieved 93.81% which was better. The good growth and high yield of the above treatments owed to the high weed control efficiency mainly. Analysing the above indicators, the CJ7-3-9 weeding mulching plastic was the best among the three weeding mulching plastic, while the C306 weeding mulching plastic was better.
Keywords: Spring-planting Peanut; Weeding mulching plastic; Agriculture character; Output
目 录
1 前言1
2 材料与方法1
2.1 试验材料1
2.2 试验地概况1
2.3试验方法2
2.3.1 田间设计2
2.3.2 田间管理2
2.3.3 调查方法2
2.3.3.1 生育动态调查2
2.3.3.2 杂草调查2
2.3.3.3 主要经济性状调查2
3 结果与分析3
3.1 不同地膜对花生荚果产量的影响3
3.2 不同地膜对花生产量构成因素的影响3
3.3 不同地膜对花生生长发育动态的影响4
3.3.1 不同地膜处理花生植株性状生育动态4
3.3.2 不同地膜处理花生叶面积指数生育动态5
3.4 不同地膜对花生主要农艺性状的影响6
3.5 不同地膜对花生田间杂草的防治效果7
4 讨论8
4.1 四种地膜花生产量的对比8
4.2 不同地膜对花生生长发育动态的影响9
4.3 不同地膜处理对花生主要农艺性状的比较9
4.4 几种地膜处理除草效果的比较9
4.5地膜覆盖栽培将向环保方向去发展10
参考文献11
Abstract12
致谢13
不同地膜覆盖对春植花生生长及产量的影响......