EFFECTS OF FARMYARD MANURE AND GREEN MANURES ON CROP YIELDS AND NITROGEN NEEDS OF POTATO-BASED CROPPING SYSTEMS IN PUNJAB

被引：7

作者：

SHARMA, RC

GOVINDAKRISHNAN, PM

SINGH, RP

SHARMA, HC

机构：

来源：

关键词：

D O I：

10.1017/S002185960008206X

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

引用

页码：499 / 504

页数：6

共 11 条

[1]

Jackson M.L., 1967, SOIL CHEM ANAL, P326

[2]

SHARMA R C, 1980, Journal of the Indian Society of Soil Science, V28, P232

[3]

SHARMA RC, 1981, INDIAN J AGR SCI, V51, P462

SHARMA, RC .

[5]

SHARMA RC, 1982, SINGLE EXTRACTION PR, P87

[6]

SHARMA RC, 1978, INDIAN J EXPT BIOL, V16, P1313

[7]

SINGH RP, 1983, INDIAN J AGR SCI, V53, P216

[8]

SUBBIAH B. V., 1956, CURRENT SCI, V25, P259

Walkley, A ;

Black, IA .

[10] EXPERIMENTS MEASURING RESIDUAL EFFECTS OF NITROGEN FERTILIZERS [J].

WIDDOWSO.FV ;

PENNY, A .