SU959725A1 - Agent for increasing nitrogen and phosphorus availability by cotton plants - Google Patents

Description

one

The invention relates to agriculture, namely to chemical agents that increase the digestibility of cotton nitrogen and phosphorus.

It is known to use cobalt cake as a means for increasing nitrogen absorption by plants 1.

However, cobalt cake, increasing the absorption of nitrogen by plants, does not affect the absorption of phosphorus, does not increase it.

It is known to use a heteropolyphosphomolybdenum (GPFM) catalyst in the production of phenol and acetone in the decomposition of isopropylenebenzene hydrorerecide 2.

The purpose of the invention is to increase the absorption of cotton and nitrogen and phosphorus.

This goal is achieved by using spent heteropolyphosphate-molybdenum catalyst - waste production of phenol and acetone in the decomposition of isopropyl benzene hydroperoxide, as a means to increase the absorption of nitrogen and phosphorus by cotton.

Spent GPFM catalyst has the following composition, wt.%: Mo 32,4;

17; PzQs 4; CaO 0,22, organic impurities.

Experiments to study the effect of the HPFM catalyst on the content of organic forms of phosphorus, as well as amino and protein nitrogen in cotton leaves were carried out on cotton variety Tashkent-1, grown in vegetative vessels on typical gray soil. HPFM catalyst was applied to the soil at the rate of 2.0 kg / ha, as well as in the composition,%: ammophos 1.0, urea 0.5, prosto 10 superphosphate 0.2 and double superphosphate 1.0.

Plant care was carried out according to the same procedure. The results of the experiments

15 are given in table. 1 and 2.

As can be seen from the results table. 1 HPFM catalyst promotes the uptake of nitrogen and phosphorus by plants. So, during the flowering period when using cobalt cake

20 the content of the sheath, its nitrogen is equal to 2.01%, and when using the HPFM catalyst with urea - 2.56%, with superphosphate - 2.52%. The content of the organic form of nitrogen and phosphorus, compared with the control, increased from 0.21% nitrogen to 0.41 and 0.37% and

959725

34

phosphorus from 0.41% to 0.53 and 0, respectively, urea - by 4.2 kg / ha, with ammophos -

but for a hpfm catalyst with carbamidomy 4.7 c / ha.

and superphosphate. This is also reflected in the way the results are given in yield. From tab. 2 it follows that the priyes in table. 1, and 2, indicate that GPF

using a cobalt cake, the yield-catalyst catalyst is an effective prepar at 1.9 centners / ha compared with the control, and is used to increase cotton digestibility when using the HPFM catalyst with reduced nitrogen and phosphorus.

The control N-150, PjOj-120 N-ISO.PjOj - 120 + cobalt

N-150, 120 + GPFM catalyst

N-150, P, OC - 120) - Ammophos + + GPFM

N- 150, PjOg - 120 + carbamide + HPFM

N- 150, PjOg - 120 + superphosphate + HPFM

, PjOj - 1201.82

120 + cobalt, 2.01

120 + GPFM

2.35

120 + ammophos +

2, C6

120 + carbamide +

2.56

120 + superfos2, 52

ControlN - 150, PjOj - 120

N - 150, PjOg - 120 + cobalt cake

N - 150, PjOj - 120 + HPFM catalyst

120 + ammophos

1.69

120 + carbamide n1, 73

120 + superfos1, 71

Table I

tonization

0.5 |

0, li6

1.26 0.22 O, (8 0,

1, 60

0,22 0,56 1,58 0,50 0,29 1,67 0,58 0,35 0,51 1,78 0,56 0,39 0,51 O, (9 0,31 0,53

branch

0, 1, 00

0.21

0.30

1.50,350,39

0.50

1, 370, tt 0.55

1,570,) 1O, ill 0,53

1,500,370, C2 0.5 single generation

0,810,180,20

0.21

Oh, 0.210.22

0.35

1,000, 0,28 0,39

0.211

1,200.29 0,35

1,050,28 0,37

0.25

Claims (2)

1. USSR author's certificate for application No. 2658142 / 23-26, cl. C 05 G 3/8, 1979. 2. Study of the properties of the use of heteropolyacids in catalysis. Materials of the All-Union Conference. Novosibirsk, 1978, p. 182.