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Effects of Different Planting Densities and Fertilization Levels on Yield and Main Agronomic Characters of Early-maturing Summer Soybean in Shanxi Province(PDF)

《大豆科学》[ISSN:1000-9841/CN:23-1227/S]

Issue:
2019年06期
Page:
921-927
Research Field:
Publishing date:

Info

Title:
Effects of Different Planting Densities and Fertilization Levels on Yield and Main Agronomic Characters of Early-maturing Summer Soybean in Shanxi Province
Author(s):
REN Xiao-jun;  LYU Xin-yun;  MA Jun-kui
(Institute of Economic Crops, Shanxi Academy of Agricultural Sciences, Fenyang 032200，China)
Keywords:
Soybean;  Planting density;  Fertilizer level;  100-seed weight;  Yield
PACS:
-
DOI:
10.11861/j.issn.1000-9841.2019.06.0921
Abstract:
In order to determine the suitable planting density and fertilizer levels of Fendou 98 and provide technical basis for its high-yield and high-quality cultivation techniques, five planting densities (375.0, 487.5, 600.0, 712.5, 825.0 thousand plants·ha-1) and four fertilizer levels (450, 600, 750, 900 kg·ha-1) were set up by using a two-factor completely random block method, and the effects of different planting densities and fertilizer levels on main agronomic traits, yield traits and yield of soybean were studied in this article. The results showed that the plant height and the pod height grew with the increasing of planting density. The number of main stem nodes, branches, stem diameter, pod number per plant, seed number per plant, seed weight per plant and 100-seed weight decreased gradually with the increasing of planting density. The agronomic traits such as plant height, pod height, node number of main stem, pod number per plant, seed number per plant, seed weight per plant and 100-seed weight showed the regularity that the performance with high fertilizer levels was higher than that with low level. Other agronomic traits had no obvious regularity. The yield of soybean rised and then fell with the increasing of planting density, and rised gradually with the increasing of fertilizer levels. The optimum planting density of Fendou 98 was 712.5 thousand plants·ha-1. In such condition, the optimum fertilizer amount was 900 kg·ha-1,and the maximum yield was 3 287.3 kg·ha-1. High yield could also be achieved through appropriate reduction of planting density and fertilizer amount.

References:

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Last Update: 1900-01-01