Crops ›› 2016, Vol. 32 ›› Issue (1): 125-128.doi: 10.16035/j.issn.1001-7283.2016.01.023

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Effects of Phosphorus on Pea Yield and Its Components

Gao Xiaoli   

  1. Agricultural Institute,Tibet Academy of Agricultural and Animal Husbandry Sciences,Lhasa 850032,Tibet,China
  • Received:2015-11-06 Revised:2015-12-09 Online:2016-02-15 Published:2018-08-25

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Abstract:

By using single factor randomized block trial, the effects of phosphorus on growth characters, yield and yield components of a new pea variety (Zang wan No.1) were analyzed in this study.The results showed that phosphorus could shorten the growing period, increase plant height, 100-grain weight, yield per plant and branches on main stem. With the increase of the application amount of phosphorus, the yield was increased first and then decreased. Phosphorus could increase the economic yield by 0.4%~6.5% and biological yield by 10.4%~15.3%.With the phosphorus 375kg/hm 2, the economic yield and biological yield of pea reached the highest of 6 467kg/hm 2 and 12 095kg/hm 2, respectively.

Key words: Phosphorus, Peas, Yield, Yield components

Table 1

Applying phosphate on the pea growth stage"

施磷量（kg/hm2）
Phosphorus
application		 播种期
（日/月）
Sowing date		 出苗期
（日/月）
Seedling date		 分枝期
（日/月）
Branching date		 初花期
（日/月）
First Flowering date		 盛花期
（日/月）
Blooming date		 终花期
（日/月）
Final flowering date		 成熟期
（日/月）
Maturity date		 生育天数
（d）
Growth stage
0 7/4 5/5 17/5 4/6 24/6 4/7 7/8 120
225 7/4 5/5 17/5 4/6 23/6 2/7 5/8 118
375 7/4 5/5 17/5 4/6 20/6 30/6 4/8 117
525 7/4 5/5 17/5 4/6 19/6 30/6 1/8 114

Table 2

phosphorus impact on pea yield constituting"

施磷量（kg/hm2）
Phosphorus application		 株高(cm)
Plant height		 单株荚数（个）
Pod number per plant		 荚粒数
Grain number per plant		 百粒重(g)
100-grain weight		 单株产量(g)
Grain weight per plant		 主茎分枝数（个）
Branch number
0 96.9±4.7aA 28.5±0.8bB 4.5±0.1aA 23.7±0.5aA 21.3±1.3bB 0.3±0.2aA
225 106.9±4.0aA 29.6±3.7aA 4.6±0.4aA 24.3±0.3aA 22.8±0.5aA 0.3±0.3aA
375 107.9±5.2aA 34.6±2.5aA 4.9±0.2aA 24.9±0.2aA 23.8±0.8aA 0.4±0.2aA
525 98.8±6.1aA 33.0±5.8aA 4.8±0.2aA 24.0±0.3aA 23.5±1.9aA 0.3±0.2aA

Table 3

Effect of fertilization on yield of pea"

施磷量
（kg/hm2）
Phosphorus
application		 小区平均经济产量（kg/6m2）
Community average economic yield		 比不施磷肥增减产(%)
Changes in yield than CK		 折合经济产量
（kg/hm2）
Equivalent yield		 小区平均生物产量
（kg/6m2）
The average cell
biological yield		 折合生物产量
（kg/hm2）
Equivalent yield		 比不施磷肥增减产(%)
Changes in yield than CK		 经济系数
(%)
Economic factor
0 3.64±0.1bB 6 067bB 6.29±0.2bB 10 489bB 57.9
225 3.66±0.2bB +0.4 6 095bB 6.95±0.3aAB 11 574aAB +10.4 52.6
375 3.88±0.1aA +6.5 6 461aA 7.26±0.3aA 12 101aA +15.3 53.5
525 3.84±0.2aA +5.5 6 400aA 7.01±0.1aA 11 684aA +11.4 54.8

Table 4

Correlation among yield and the major characters of pea"

性状
Trait		 株高
Plant height		 单株荚数
Pod number per plant		 荚粒数
Grain number per pod		 百粒重
100-grain
weight		 主茎分枝数
Branch number
on main stem		 单株产量
Grain weight
per plant
单株荚数 Pod number per plant 0.411
荚粒数 Grain number per plant 0.455 0.998**
百粒重 100-grain weight 0.903 0.726 0.748
主茎分枝数 Branch number on main stem 0.599 0.907 0.933 0.761
单株产量 Grain weight per plant 0.63 0.741 0.73 0.878 0.568
小区产量 Plot yield 0.639 0.919 0.918 0.907 0.813 0.938
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